[Federal Register Volume 76, Number 160 (Thursday, August 18, 2011)]
[Rules and Regulations]
[Pages 51476-51846]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-19719]
[[Page 51475]]
Vol. 76
Thursday,
No. 160
August 18, 2011
Part II
Department of Health and Human Services
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Centers for Medicare & Medicaid Services
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42 CFR Parts 412, 413 and 476
Medicare Program; Hospital Inpatient Prospective Payment Systems for
Acute Care Hospitals and the Long-Term Care Hospital Prospective
Payment System and FY 2012 Rates; Hospitals' FTE Resident Caps for
Graduate Medical Education Payment; Final Rule
Federal Register / Vol. 76 , No. 160 / Thursday, August 18, 2011 /
Rules and Regulations
[[Page 51476]]
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DEPARTMENT OF HEALTH AND HUMAN SERVICES
Centers for Medicare & Medicaid Services
42 CFR Parts 412, 413, and 476
[CMS-1518-F; CMS-1430-F]
RIN 0938-AQ24; RIN 0938-AQ92
Medicare Program; Hospital Inpatient Prospective Payment Systems
for Acute Care Hospitals and the Long-Term Care Hospital Prospective
Payment System and FY 2012 Rates; Hospitals' FTE Resident Caps for
Graduate Medical Education Payment
AGENCY: Centers for Medicare and Medicaid Services (CMS), HHS.
ACTION: Final rules.
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SUMMARY: We are revising the Medicare hospital inpatient prospective
payment systems (IPPS) for operating and capital-related costs of acute
care hospitals to implement changes arising from our continuing
experience with these systems and to implement certain statutory
provisions contained in the Patient Protection and Affordable Care Act
and the Health Care and Education Reconciliation Act of 2010
(collectively known as the Affordable Care Act) and other legislation.
We also are setting forth the update to the rate-of-increase limits for
certain hospitals excluded from the IPPS that are paid on a reasonable
cost basis subject to these limits.
We are updating the payment policy and the annual payment rates for
the Medicare prospective payment system (PPS) for inpatient hospital
services provided by long-term care hospitals (LTCHs) and implementing
certain statutory changes made by the Affordable Care Act. In addition,
we are finalizing an interim final rule with comment period that
implements section 203 of the Medicare and Medicaid Extenders Act of
2010 relating to the treatment of teaching hospitals that are members
of the same Medicare graduate medical education affiliated groups for
the purpose of determining possible full-time equivalent (FTE) resident
cap reductions.
DATES: Effective dates: These final rules are effective on October 1,
2011, except for the provisions of Sec. 412.230(d)(5), which are
effective September 1, 2011. Effective July 29, 2011, the interim rule
published March 14, 2011, at 76 FR 13515, is confirmed as final without
change.
Applicability dates: The update to the rate-of-increase limits for
certain hospitals excluded from the IPPS that are paid on a reasonable
cost basis subject to these limits is applicable beginning on or after
October 1, 2011. The payment policy and the annual payment rates for
inpatient hospital services provided by IPPS hospitals and by long-term
care hospitals (LTCHs) and for implementing certain statutory changes
made by the Affordable Care Act and other legislation are applicable to
discharges occurring on or after October 1, 2011 unless otherwise
specified in this final rule.
FOR FURTHER INFORMATION CONTACT:
Tzvi Hefter, (410) 786-4487, and Ing-Jye Cheng, (410) 786-4548,
Operating Prospective Payment, MS-DRGs, Hospital Acquired Conditions
(HAC), Wage Index, New Medical Service and Technology Add-On Payments,
Hospital Geographic Reclassifications, Graduate Medical Education,
Capital Prospective Payment, Excluded Hospitals, Medicare
Disproportionate Share Hospital (DSH), and Postacute Care Transfer
Issues.
Michele Hudson, (410) 786-4487, and Judith Richter, (410) 786-2590,
Long-Term Care Hospital Prospective Payment System and MS-LTC-DRG
Relative Weights Issues.
Bridget Dickensheets, (410) 786-8670, Rebasing and Revising of the
Market Basket for LTCHs Issues.
Siddhartha Mazumdar, (410) 786-6673, Rural Community Hospital
Demonstration Program Issues.
James Poyer, (410) 786-2261, Inpatient Quality Reporting--Program
Administration, Validation, and Reconsideration Issues.
Shaheen Halim, (410) 786-0641, Inpatient Quality Reporting--Measures
Issues Except Hospital Consumer Assessment of Healthcare Providers and
Systems Issues; and Readmission Measures for Hospitals Issues.
Elizabeth Goldstein, (410) 786-6665, Inpatient Quality Reporting--
Hospital Consumer Assessment of Healthcare Providers and Systems
Measures Issues.
Mary Pratt, (410) 786-6867, LTCH Quality Data Reporting Issues.
Kim Spaulding Bush, (410) 786-3232, Hospital Value-Based Purchasing
Efficiency Measures Issues.
SUPPLEMENTARY INFORMATION:
Electronic Access
This Federal Register document is also available from the Federal
Register online database through GPO Access, a service of the U.S.
Government Printing Office. Free public access is available on a Wide
Area Information Server (WAIS) through the Internet and via
asynchronous dial-in. Internet users can access the database by using
the World Wide Web, (the Superintendent of Documents' home Web page
address is http://www.gpoaccess.gov/), by using local WAIS client
software, or by telnet to swais.access.gpo.gov, then log in as guest
(no password required). Dial-in users should use communications
software and modem to call (202) 512-1661; type swais, then log in as
guest (no password required).
Tables Available Only Through the Internet on the CMS Web Site
In the past, a majority of the tables referred to throughout this
preamble and in the Addendum to this final rule were published in the
Federal Register as part of the annual proposed and final rules.
However, beginning in FY 2012, some of the IPPS tables and LTCH PPS
tables will no longer be published as part of the annual IPPS and LTCH
PPS proposed and final rules. Instead, these tables will be available
only through the Internet. The IPPS tables for this final rule are
available only through the Internet on the CMS Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS/01_overview.asp. Click on the link
on the left side of the screen titled, ``FY 2012 IPPS Final Rule Home
Page'' or ``Acute Inpatient--Files for Download.'' The LTCH PPS tables
for this FY 2012 final rule are available only through the Internet on
the CMS Web site at: http://www.cms.gov/LongTermCareHospitalPPS/LTCHPPSRN/list.asp under the list item for Regulation Number CMS-1518-
F. For complete details on the availability of the tables referenced in
this final rule, we refer readers to section VI. of the Addendum to
this final rule.
Readers who experience any problems accessing any of the tables
that are posted on the CMS Web sites identified above should contact
Nisha Bhat at (410) 786-4487.
Acronyms
3M 3M Health Information System
AAMC Association of American Medical Colleges
ACGME Accreditation Council for Graduate Medical Education
AHA American Hospital Association
AHIC American Health Information Community
AHIMA American Health Information Management Association
AHRQ Agency for Healthcare Research and Quality
ALOS Average length of stay
ALTHA Acute Long Term Hospital Association
AMA American Medical Association
AMGA American Medical Group Association
[[Page 51477]]
AOA American Osteopathic Association
APR DRG All Patient Refined Diagnosis Related Group System
ARRA American Recovery and Reinvestment Act of 2009, Public Law 111-
5
ASC Ambulatory surgical center
ASCA Administrative Simplification Compliance Act of 2002, Public
Law 107-105
ASITN American Society of Interventional and Therapeutic
Neuroradiology
BBA Balanced Budget Act of 1997, Public Law 105-33
BBRA Medicare, Medicaid, and SCHIP [State Children's Health
Insurance Program] Balanced Budget Refinement Act of 1999, Public
Law 106-113
BIPA Medicare, Medicaid, and SCHIP [State Children's Health
Insurance Program] Benefits Improvement and Protection Act of 2000,
Public Law 106-554
BLS Bureau of Labor Statistics
CAH Critical access hospital
CARE [Medicare] Continuity Assessment Record & Evaluation
[Instrument]
CART CMS Abstraction & Reporting Tool
CBSAs Core-based statistical areas
CC Complication or comorbidity
CCR Cost-to-charge ratio
CDAC [Medicare] Clinical Data Abstraction Center
CDAD Clostridium difficile-associated disease
CIPI Capital input price index
CMI Case-mix index
CMS Centers for Medicare & Medicaid Services
CMSA Consolidated Metropolitan Statistical Area
COBRA Consolidated Omnibus Reconciliation Act of 1985, Public Law
99-272
COLA Cost-of-living adjustment
CoP [Hospital] condition of participation
CPI Consumer price index
CRNA Certified Registered Nurse Anesthetist
CY Calendar year
DPP Disproportionate patient percentage
DRA Deficit Reduction Act of 2005, Public Law 109-171
DRG Diagnosis-related group
DSH Disproportionate share hospital
ECI Employment cost index
EDB [Medicare] Enrollment Database
EHR Electronic health record
EMR Electronic medical record
FAH Federation of Hospitals
FDA Food and Drug Administration
FFY Federal fiscal year
FQHC Federally qualified health center
FTE Full-time equivalent
FY Fiscal year
GAAP Generally Accepted Accounting Principles
GAF Geographic Adjustment Factor
GME Graduate medical education
HACs Hospital-acquired conditions
HCAHPS Hospital Consumer Assessment of Healthcare Providers and
Systems
HCFA Health Care Financing Administration
HCO High-cost outlier
HCRIS Hospital Cost Report Information System
HHA Home health agency
HHS Department of Health and Human Services
HICAN Health Insurance Claims Account Number
HIPAA Health Insurance Portability and Accountability Act of 1996,
Public Law 104-191
HIPC Health Information Policy Council
HIS Health information system
HIT Health information technology
HMO Health maintenance organization
HPMP Hospital Payment Monitoring Program
HSA Health savings account
HSCRC [Maryland] Health Services Cost Review Commission
HSRV Hospital-specific relative value
HSRVcc Hospital-specific relative value cost center
HQA Hospital Quality Alliance
HQI Hospital Quality Initiative
ICD-9-CM International Classification of Diseases, Ninth Revision,
Clinical Modification
ICD-10-CM International Classification of Diseases, Tenth Revision,
Clinical Modification
ICD-10-PCS International Classification of Diseases, Tenth Revision,
Procedure Coding System
ICR Information collection requirement
IGI IHS Global Insight, Inc.
IHS Indian Health Service
IME Indirect medical education
I-O Input-Output
IOM Institute of Medicine
IPF Inpatient psychiatric facility
IPPS [Acute care hospital] inpatient prospective payment system
IRF Inpatient rehabilitation facility
IQR Inpatient Quality Reporting
LAMCs Large area metropolitan counties
LOS Length of stay
LTC-DRG Long-term care diagnosis-related group
LTCH Long-term care hospital
MA Medicare Advantage
MAC Medicare Administrative Contractor
MCC Major complication or comorbidity
MCE Medicare Code Editor
MCO Managed care organization
MCV Major cardiovascular condition
MDC Major diagnostic category
MDH Medicare-dependent, small rural hospital
MedPAC Medicare Payment Advisory Commission
MedPAR Medicare Provider Analysis and Review File
MEI Medicare Economic Index
MGCRB Medicare Geographic Classification Review Board
MIEA-TRHCA Medicare Improvements and Extension Act, Division B of
the Tax Relief and Health Care Act of 2006, Public Law 109-432
MIPPA Medicare Improvements for Patients and Providers Act of 2008,
Public Law 110-275
MMA Medicare Prescription Drug, Improvement, and Modernization Act
of 2003, Public Law 108-173
MMEA Medicare and Medicaid Extenders Act of 2010, Public Law 111-309
MMSEA Medicare, Medicaid, and SCHIP Extension Act of 2007, Public
Law 110-173
MRHFP Medicare Rural Hospital Flexibility Program
MRSA Methicillin-resistant Staphylococcus aureus
MSA Metropolitan Statistical Area
MS-DRG Medicare severity diagnosis-related group
MS-LTC-DRG Medicare severity long-term care diagnosis-related group
NAICS North American Industrial Classification System
NALTH National Association of Long Term Hospitals
NCD National coverage determination
NCHS National Center for Health Statistics
NCQA National Committee for Quality Assurance
NCVHS National Committee on Vital and Health Statistics
NECMA New England County Metropolitan Areas
NQF National Quality Forum
NTIS National Technical Information Service
NTTAA National Technology Transfer and Advancement Act of 1991 (Pub.
L. 104-113)
NVHRI National Voluntary Hospital Reporting Initiative
OACT [CMS'] Office of the Actuary
OBRA 86 Omnibus Budget Reconciliation Act of 1996, Public Law 99-509
OES Occupational employment statistics
OIG Office of the Inspector General
OMB Executive Office of Management and Budget
OPM U.S. Office of Personnel Management
O.R. Operating room
OSCAR Online Survey Certification and Reporting [System]
PMSAs Primary metropolitan statistical areas
POA Present on admission
PPACA Patient Protection and Affordable Care Act, Public Law 111-148
PPI Producer price index
PPS Prospective payment system
PRM Provider Reimbursement Manual
ProPAC Prospective Payment Assessment Commission
PRRB Provider Reimbursement Review Board
PRTFs Psychiatric residential treatment facilities
PSF Provider-Specific File
PS&R Provider Statistical and Reimbursement (System)
QIG Quality Improvement Group, CMS
QIO Quality Improvement Organization
RCE Reasonable compensation equivalent
RHC Rural health clinic
RHQDAPU Reporting hospital quality data for annual payment update
RNHCI Religious nonmedical health care institution
RPL Rehabilitation psychiatric long-term care (hospital)
RRC Rural referral center
RTI Research Triangle Institute, International
RUCAs Rural-urban commuting area codes
RY Rate year
SAF Standard Analytic File
SCH Sole community hospital
SFY State fiscal year
SIC Standard Industrial Classification
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SNF Skilled nursing facility
SOCs Standard occupational classifications
SOM State Operations Manual
SSO Short-stay outlier
TEFRA Tax Equity and Fiscal Responsibility Act of 1982, Public Law
97-248
TEP Technical expert panel
TMA TMA [Transitional Medical Assistance], Abstinence Education, and
QI [Qualifying Individuals] Programs Extension Act of 2007, Public
Law 110-90
UHDDS Uniform hospital discharge data set
Table of Contents
I. Background
A. Summary
1. Acute Care Hospital Inpatient Prospective Payment System
(IPPS)
2. Hospitals and Hospital Units Excluded From the IPPS
3. Long-Term Care Hospital Prospective Payment System (LTCH PPS)
4. Critical Access Hospitals (CAHs)
5. Payments for Graduate Medical Education (GME)
B. Provisions of the Patient Protection and Affordable Care Act
(Pub. L. 111-148) and the Health Care and Education Reconciliation
Act of 2010 (Pub. L. 111-152) Applicable to FY 2012
C. Issuance of a Notice of Proposed Rulemaking
1. Proposed Changes to MS-DRG Classifications and Recalibrations
of Relative Weights
2. Proposed Changes to the Hospital Wage Index for Acute Care
Hospitals
3. Other Decisions and Proposed Changes to the IPPS for
Operating Costs and GME Costs
4. Proposed FY 2012 Policy Governing the IPPS for Capital-
Related Costs
5. Proposed Changes to the Payment Rates for Certain Excluded
Hospitals: Rate-of-Increase Percentages
6. Proposed Changes to the LTCH PPS
7. Determining Proposed Prospective Payment Operating and
Capital Rates and Rate-of-Increase Limits for Acute Care Hospitals
8. Determining Proposed Prospective Payments Rates for LTCHs
9. Impact Analysis
10. Recommendation of Update Factors for Operating Cost Rates of
Payment for Hospital Inpatient Services
11. Discussion of Medicare Payment Advisory Commission
Recommendations
D. Public Comments Received in Response to the FY 2012 IPPS/LTCH
PPS Proposed Rule
E. Finalization of Interim Final Rule With Comment Period on
Revisions to the Reductions and Increases to Hospitals' FTE Resident
Caps for Graduate Medical Education Payment Purposes
II. Changes to Medicare Severity Diagnosis-Related Group (MS-DRG)
Classifications and Relative Weights
A. Background
B. MS-DRG Reclassifications
1. General
2. Yearly Review for Making MS-DRG Changes
C. Adoption of the MS-DRGs in FY 2008
D. FY 2012 MS-DRG Documentation and Coding Adjustment, Including
the Applicability to the Hospital-Specific Rates and the Puerto
Rico-Specific Standardized Amount
1. Background on the Prospective MS-DRG Documentation and Coding
Adjustments for FY 2008 and FY 2009 Authorized by Public Law 110-90
2. Prospective Adjustment to the Average Standardized Amounts
Required by Section 7(b)(1)(A) of Public Law 110-90
3. Recoupment or Repayment Adjustments in FYs 2010 through 2012
Required by Public Law 110-90
4. Retrospective Evaluation of FY 2008 and FY 2009 Claims Data
5. Prospective Adjustment for FY 2010 and Subsequent Years
Authorized by Section 7(b)(1)(A) of Public Law 110-90 and Section
1886(d)(3)(vi) of the Act
6. Recoupment or Repayment Adjustment for FY 2010 Authorized by
Section 7(b)(1)(B) of Public Law 110-90
7. Background on the Application of the Documentation and Coding
Adjustment to the Hospital-Specific Rates
8. Documentation and Coding Adjustment to the Hospital-Specific
Rates for FY 2011 and Subsequent Fiscal Years
9. Application of the Documentation and Coding Adjustment to the
Puerto Rico-Specific Standardized Amount
a. Background
b. Documentation and Coding Adjustment to the Puerto Rico-
Specific Standardized Amount
E. Refinement of the MS-DRG Relative Weight Calculation
1. Background
2. Summary of the RTI Study of Charge Compression and CCR
Refinement
3. Summary of Policy Changes Made in FY 2011
4. Discussion for FY 2012
F. Preventable Hospital-Acquired Conditions (HACs), Including
Infections
1. Background
a. Statutory Authority
b. HAC Selection
c. Collaborative Process
d. Application of HAC Payment Policy to MS-DRG Classifications
e. Public Input Regarding Selected and Potential Candidate HACs
f. POA Indicator Reporting
2. Additions and Revisions to the HAC Policy for FY 2012
a. Contrast-Induced Acute Kidney Injury
b. New Diagnosis Codes Added to Existing HACs
c. Revision to HAC Subcategory Title
d. Conclusion
3. RTI Program Evaluation Summary
a. Background
b. FY 2009 Data Analysis
c. FY 2010 Data Analysis
d. FY 2010 RTI Analysis on POA Indicator Reporting of Current
HACs.
e. FY 2010 RTI Analysis of Frequency of Discharges and POA
Indicator Reporting for Current HACs
f. RTI Analysis of Circumstances When Application of HAC
Provisions Would Not Result in MS-DRG Reassignment for Current HACs
g. RTI Analysis of Coding Changes for HAC-Associated Secondary
Diagnoses for Current HACs
h. RTI Analysis of Estimated Net Savings for Current HACs
i. Previously Considered Candidate HACs--RTI Analysis of
Frequency of Discharges and POA Indicator Reporting
j. Current and Previously Considered Candidate HACs--RTI Report
on Evidence-Based Guidelines
k. Final Policy Regarding Current HACs and Previously Considered
Candidate HACs
G. Changes to Specific MS-DRG Classifications
1. Pre-Major Diagnostic Categories (Pre-MDCs)
a. Noninvasive Mechanical Ventilation
b. Debridement With Mechanical Ventilation Greater Than 96 Hours
With Major Operating Room (O.R.) Procedure
c. Autologous Bone Marrow Transplant
2. MDC 1 (Diseases and Disorders of the Nervous System):
Rechargeable Dual Array Deep Brain Stimulation System
3. MDC 3 (Diseases and Disorders of the Ear, Nose, Mouth, and
Throat): Skull Based Surgeries
4. MDC 5 (Diseases and Disorders of the Circulatory System)
a. Percutaneous Mitral Valve Repair With Implant
b. Aneurysm Repair Procedure Codes
5. MDC 8 (Diseases and Disorders of the Musculoskeletal System
and Connective Tissue)
a. Artificial Discs
b. Major Joint Replacement or Reattachment of Lower Extremities
c. Combined Anterior/Posterior Spinal Fusion
6. MDC 9 (Diseases and Disorders of the Skin, Subcutaneous
Tissue, and Breast): Excisional Debridement of Wound, Infection, or
Burn
7. MDC 10 (Endocrine, Nutritional, and Metabolic Diseases and
Disorders)
a. Nutritional and Metabolic Diseases: Update of MS-DRG Titles
b. Sleeve Gastrectomy Procedure for Morbid Obesity
8. MDC 15 (Newborns and Other Neonates with Conditions
Originating in the Perinatal Period): Discharge Status Code 66
(Discharged/Transferred to Critical Access Hospital (CAH))
9. Medicare Code Editor (MCE) Changes
10. Surgical Hierarchies
11. Complications or Comorbidity (CC) Exclusions List
a. Background
b. CC Exclusions List for FY 2012
12. Review of Procedure Codes in MS-DRGs 981 Through 983, 984
Through 986, and 987 Through 989
a. Moving Procedure Codes From MS-DRGs 981 Through 983 or MS-
DRGs 987 Through 989 Into MDCs
b. Reassignment of Procedures Among MS-DRGs 981 Through 983, 984
Through 986, and 987 Through 989
c. Adding Diagnosis or Procedure Codes to MDCs
13. Changes to the ICD-9-CM Coding System, Including Discussion
of the
[[Page 51479]]
Replacement of the ICD-9-CM System With the ICD-10-CM and ICD-10-PCS
Systems in FY 2014
a. ICD-9-CM Coding System
b. Code Freeze
c. Processing of 25 Diagnosis Codes and 25 Procedure Codes on
Hospital Inpatient Claims
d. ICD-10 MS-DRGs
14. Other Issues
a. O.R./Non-O.R. Status of Procedures
b. IPPS Recalled Device Policy Clarification
15. Public Comments on Issues Not Addressed in Proposed Rule
H. Recalibration of MS-DRG Weights
I. Add-On Payments for New Services and Technologies
1. Background
2. Public Input Before Publication of a Notice of Proposed
Rulemaking on Add-On Payments
3. FY 2012 Status of Technologies Approved for FY 2011 Add-On
Payments
a. Spiration[supreg] IBV Valve System
b. Cardio West\TM\ Temporary Artificial Heart System (Cardio
West\TM\ TAH-t)
c. Auto Laser Interstitial Thermal Therapy (AutoLITT\TM\) System
4. FY 2012 Applications for New Technology Add-On Payments
a. AxiaLIF[supreg] 2L+\TM\ System
b. PerfectCLEAN with Micrillon[supreg]
III. Changes to the Hospital Wage Index for Acute Care Hospitals
A. Background
B. Core-Based Statistical Areas for the Hospital Wage Index
C. Occupational Mix Adjustment to the FY 2012 Wage Index
1. Development of Data for the FY 2012 Occupational Mix
Adjustment Based on the 2007-2008 Occupational Mix Survey
2. New 2010 Occupational Mix Survey for the FY 2013 Wage Index
3. Calculation of the Occupational Mix Adjustment for FY 2012
D. Worksheet S-3 Wage Data for the FY 2012 Wage Index
1. Included Categories of Costs
2. Changes to the Reporting Requirements for Pension Costs for
the Medicare Wage Index
a. Background
b. Allowable Pension Cost for the Medicare Wage Index
3. Excluded Categories of Costs
4. Use of Wage Index Data by Providers Other Than Acute Care
Hospitals under the IPPS
E. Verification of Worksheet S-3 Wage Data
F. Method for Computing the FY 2012 Unadjusted Wage Index
1. Steps for Computation
2. Imputed Floor Policy
3. FY 2012 Puerto Rico Wage Index
G. Analysis and Implementation of the Occupational Mix
Adjustment and the FY 2012 Occupational Mix Adjusted Wage Index
H. Revisions to the Wage Index Based on Hospital Redesignations
and Reclassifications
1. General
2. Effects of Reclassification/Redesignation
3. FY 2012 MGCRB Reclassifications
a. FY 2012 Reclassification Requirements and Approvals
b. Applications for Reclassifications for FY 2013
4. Redesignations of Hospitals Under Section 1886(d)(8)(B) of
the Act
5. Reclassifications Under Section 1886(d)(8)(B) of the Act
6. Reclassifications Under Section 508 of Public Law 108-173
7. Waiving Lugar Redesignation for the Out-Migration Adjustment
8. Other Geographic Reclassification Issues
a. Requested Reclassification for Single Hospital MSAs
b. Requests for Exceptions to Geographic Reclassification Rules
I. FY 2012 Wage Index Adjustment Based on Commuting Patterns of
Hospital Employees
J. Process for Requests for Wage Index Data Corrections
K. Labor-Related Share for the FY 2012 Wage Index
IV. Other Decisions and Changes to the IPPS for Operating Costs and
GME Costs
A. Hospital Inpatient Quality Reporting Program
1. Background
a. Overview
b. Statutory History and History of Measures Adopted for the
Hospital IQR Program
c. Maintenance of Technical Specifications for Quality Measures
d. Public Display of Quality Measures
2. Retirement of Hospital IQR Program Measures
a. Considerations in Retiring Quality Measures from the Hospital
IQR Program
b. Retirement of Hospital IQR Program Measures for the FY 2014
Payment Determination and Subsequent Years
3. Measures for the FY 2014 and FY 2015 Hospital IQR Payment
Determinations
a. Considerations in Expanding and Updating Quality Measures
Under the Hospital IQR Program
b. Hospital IQR Program Measures for the FY 2014 Hospital IQR
Payment Determination
c. Hospital IQR Program Quality Measures for the FY 2015 Payment
Determination
4. Possible New Quality Measures and Measure Topics for Future
Years
5. Form, Manner, and Timing of Quality Data Submission
a. Background
b. Procedural Requirements for the FY 2012 Payment
Determinations and Subsequent Years
c. Procedural Requirements for FY 2013 and Subsequent Years
d. Data Submission Requirements for Chart-Abstracted Measures
e. Sampling and Case Thresholds Beginning With the FY 2015
Payment Determination
f. HCAHPS Requirements for the FY 2013, FY 2014, and FY 2015
Payment Determinations
g. Procedures for Claims-Based Measures
h. Data Submission Requirements for Structural Measures
i. Data Submission and Reporting Requirements for Healthcare-
Associated Infection (HAI) Measures Reported via NHSN
6. Chart Validation Requirements for Chart-Abstracted Measures
a. Changes to the Chart Validation Requirements and Methods for
the FY 2012 Payment Determination and Subsequent Years
b. Supplements to the Chart Validation Process for the FY 2014
Payment Determination and Subsequent Years
7. QIO Regulation Changes for Provider Medical Record Deadlines
Possibly Including Serious Reportable Events
8. Data Accuracy and Completeness Acknowledgement Requirements
for the FY 2012 Payment Determination and Subsequent Years
9. Public Display Requirements for the FY 2014 Payment
Determination and Subsequent Years
10. Reconsideration and Appeal Procedures for the FY 2012
Payment Determination
11. Hospital IQR Program Disaster Waivers
12. Electronic Health Records (EHRs)
a. Background
b. HITECH Act EHR Provisions
B. Hospital Value-Based Purchasing (VBP) Program
1. Background
2. Overview of the Hospital VBP Program Proposed Rule
3. FY 2014 Hospital VBP Program Measures
a. Background
b. Efficiency Measure--Medicare Spending per Beneficiary
Measure--for the FY 2014 Hospital VBP Program
4. Efficiency Domain (Medicare Spending per Beneficiary Measure)
Performance Period and Baseline Period
5. Simultaneous Specification of Additional Measures for the
Hospital VBP Program and the Hospital IQR Program
6. Responses to Additional Hospital VBP Program Comments
C. Hospital Readmissions Reduction Program
1. Background
a. Overview
b. Statutory Basis for the Hospital Readmissions Reduction
Program
2. Implementation of the Hospital Readmissions Reduction Program
a. Overview
b. Provisions in the FY 2012 IPPS/LTCH PPS Rulemaking
c. Provisions to be Included in the FY 2013 IPPS/LTCH PPS
Proposed Rule
d. Expansion of the Applicable Conditions To Be Included in the
Future Rulemaking
3. Provisions of the Hospital Readmissions Reduction Program
a. Applicable Conditions for FY 2013 Hospital Readmissions
Reduction Program
b. Definition of ``Readmissions''
c. Readmission Measures and Related Methodology
D. Rural Referral Centers (RRCs) (Sec. 412.96)
1. Case-Mix Index (CMI)
2. Discharges
E. Payment Adjustment for Low-Volume Hospitals (Sec. 412.101)
[[Page 51480]]
1. Background
2. Temporary Changes for FYs 2011 and 2012
3. Discharge Data Source Used to Identify Qualifying Low-Volume
Hospitals and Calculate the Payment Adjustment (Percentage Increase)
for FY 2012
F. Indirect Medical Education (IME) Adjustment
1. Background
2. IME Adjustment Factor for FY 2012
G. Payment Adjustment for Medicare Disproportionate Share
Hospitals (DSHs) and Indirect Medical Education (IME) (Sec. Sec.
412.105 and 412.106)
1. Background
2. Policy Change Relating to the Exclusion of Hospice Beds and
Patient Days From the Calculation of the Medicare DSH Payment
Adjustment and the IME Payment Adjustment
a. Background
b. Hospice Inpatient Services
H. Medicare-Dependent, Small Rural Hospitals (MDHs) (Sec.
412.108)
1. Background
2. Extension of the MDH Program
I. Certified Register Nurse Anesthetists (CRNA) Services
Furnished in Rural Hospitals and CAHs (Sec. 412.113)
J. Additional Payments for Qualifying Hospitals With Lowest per
Enrollee Medicare Spending
1. Background
2. Method for Identifying Qualifying Hospitals and Eligible
Counties
3. Determination of Annual Payment Amounts
4. Eligible Counties and Qualifying Hospitals
5. Payment Determination and Distributions for FY 2011 and FY
2012
K. Changes in the Inpatient Hospital Update
1. FY 2012 Inpatient Hospital Update
2. FY 2012 Puerto Rico Hospital Update
3. Productivity Adjustment
L. Additional Payments to Hospitals With High Percentage of End-
Stage Renal Disease (ESRD) Discharges (Sec. 412.104)
M. Changes to the Reporting Requirements for Pension Costs for
Medicare Cost-Finding Purposes
1. Background
2. Allowable Defined Benefit Pension Plan Cost for Medicare
Cost-Finding Purposes
N. Rural Community Hospital Demonstration Program
1. Background
2. Changes to the Demonstration Program Made by the Affordable
Care Act
3. FY 2012 Budget Neutrality Adjustment
a. Component of the FY 2012 Budget Neutrality Adjustment that
Accounts for Estimated Demonstration Program Costs of the ``Pre-
Expansion'' Participating Hospitals
b. Portion of the FY 2012 Budget Neutrality Adjustment That
Accounts for Estimated FY 2012 Demonstration Program Costs for
Hospitals Newly Selected to Participate in the Demonstration Program
c. Portion of the FY 2012 Budget Neutrality Adjustment to Offset
the Amount by Which the Costs of the Demonstration Program in FYs
2007 and 2008 Exceeded the Amount That Was Identified in the FYs
2007 and 2008 IPPS Final Rules as the Budget Neutrality Offset for
FYs 2007 and 2008
O. Bundling of Payments for Services Provided to Outpatients Who
Later Are Admitted as Inpatients: 3-Day Payment Window
1. Background
2. Establishment of Condition Code 51 (Attestation of Unrelated
Outpatient Nondiagnostic Services)
3. Applicability of the Payment Window Policy to Services
Furnished at Physicians' Practices
P. Changes to MS-DRGs Subject to the Postacute Care Transfer
Policy
1. Background
2. Changes to the Postacute Care Transfer MS-DRGs
Q. Hospital Services Furnished Under Arrangements
R. Finalization of Interim Final Rule With Comment Period on
Revisions to the Reductions and Increases to Hospitals' FTE Resident
Caps for Graduate Medical Education Purposes
1. Background and Provisions of the Interim Final Rule With
Comment Period
a. Statutory Authority
b. Reductions and Increases to Hospitals' FTE Resident Caps for
GME Payment Purposes Under Section 5503 of the Affordable Care Act
c. Treatment of Affiliated Groups Under Section 5503 of the
Affordable Care Act
d. Section 203 of the Medicare and Medicaid Extenders Act of
2010 (Pub. L. 111-309)
2. Summary of the Provisions of the Interim Final Rule With
Comment Period
3. Summary of Public Comments, Departmental Responses, and
Statements of Final Policies
a. Summary of Public Comments and Departmental Responses
b. Final Policies
4. Collection of Information Requirements
5. Regulatory Impact Statement
a. Statement of Need
b. Overall Impact
c. Anticipated Effects
d. Alternatives Considered
e. Conclusion
6. Comment on Issues Outside of the Scope of the Interim Final
Rule With Comment Period
V. Changes to the IPPS for Capital-Related Costs
A. Overview
B. Exception Payments
C. New Hospitals
D. Hospitals Located in Puerto Rico
E. Changes for FY 2012: MS-DRG Documentation and Coding
Adjustment
1. Background
2. Prospsective MS-DRG Documentation and Coding Adjustment to
the National Capital Federal Rate for FY 2012 and Subsequent Years
3. Documentation and Coding Adjustment to the Puerto Rico-
Specific Capital Rate
F. Other Proposed Changes for FY 2012
VI. Changes for Hospitals Excluded From the IPPS
A. Excluded Hospitals
B. Critical Access Hospital (CAH) Payment for Ambulance Services
1. Background
2. Requirement for CAH Ambulance Within a 35-Mile Location of a
CAH or Entity
C. Report of Adjustment (Exceptions) Payments
VII. Changes to the Long-Term Care Hospital Prospective Payment
System (LTCH PPS) for FY 2012
A. Background of the LTCH PPS
1. Legislative and Regulatory Authority
2. Criteria for Classification as a LTCH
a. Classification as a LTCH
b. Hospitals Excluded From the LTCH PPS
3. Limitation on Charges to Beneficiaries
4. Administrative Simplification Compliance Act (ASCA) and
Health Insurance Portability and Accountability Act (HIPAA)
Compliance
B. Medicare Severity Long-Term Care Diagnosis-Related Group (MS-
LTC-DRG) Classifications and Relative Weights
1. Background
2. Patient Classifications Into MS-LTC-DRGs
a. Background
b. Changes to the MS-LTC-DRGs for FY 2012
3. Development of the FY 2012 MS-LTC-DRG Relative Weights
a. General Overview of the Development of the MS-LTC-DRG
Relative Weights
b. Development of the MS-LTC-DRG Relative Weights for FY 2012
c. Data
d. Hospital-Specific Relative Value (HSRV) Methodology
e. Treatment of Severity Levels in Developing the MS-LTC-DRG
Relative Weights
f. Low-Volume MS-LTC-DRGs
g. Steps for Determining the Proposed FY 2012 MS-LTC-DRG
Relative Weights
C. Quality Reporting Program for LTCHs
1. Background and Statutory Authority
2. Quality Measures for the LTCH Quality Reporting Program for
FY 2014
a. Considerations in the Selection of the Quality Measures
b. LTCH Quality Measures for FY 2014 Payment Determination
3. Possible LTCH Quality Measures Under Consideration for Future
Years
4. Data Submission Methods and Timelines
a. Method of Data Submission for HAIs
b. Timeline for Data Reporting Related to HAIs
c. Method of Data Collection and Submission for the Pressure
Ulcer Measure Data
d. Timeline for Data Reporting Related to Pressure Ulcers
5. Public Reporting and Availability of Data Submitted
D. Rebasing and Revising of the Market Basket Used Under the
LTCH PPS
1. Background
2. Overview of the FY 2008-Based RPL Market Basket
3. Rebasing and Revising of the RPL Market Basket
a. Development of Cost Categories
[[Page 51481]]
b. Final Cost Category Computation
c. Selection of Price Proxies
d. Methodology for Capital Portion of the RPL Market Basket
e. FY 2012 Market Basket Update for LTCHs
f. Labor-Related Share
E. Changes to the LTCH Payment Rates and Other Changes to the FY
2012 LTCH PPS
1. Overview of Development of the LTCH Payment Rates
2. FY 2012 LTCH PPS Annual Market Basket Update
a. Overview
b. Revision of Certain Market Basket Updates as Required by the
Affordable Care Act
c. Market Basket Under the LTCH PPS for FY 2012
d. Productivity Adjustment
e. Annual Market Basket Update for LTCHs for FY 2012
3. Budget Neutrality Adjustment for the Changes to the Area Wage
Level Adjustment
4. Greater Than 25 Day Average Length of Stay Requirement for
LTCHs
a. Determining the Average Length of Stay When There is a Change
of Ownership
b. Inclusion of Medicare Advantage (MA) Days in the Average
Length of Stay Calculation
F. Application of LTCH Moratorium on the Increase in Beds at
Section 114(d)(1)(B) of Public Law 110-173 (MMSEA) to LTCHs and LTCH
Satellite Facilities Established or Classified as Such Under Section
114(d)(2) of Public Law 110-173
VIII. MedPAC Recommendations
IX. Other Required Information
A. Requests for Data From the Public
B. Collection of Information Requirements
1. Statutory Requirement for Solicitation of Comments
2. ICRs for Add-On Payments for New Services and Technologies
3. ICRs for the Hospital Inpatient Quality Reporting (IQR)
Program
4. ICRs for the Occupational Mix Adjustment to the FY 2012 Index
(Hospital Wage Index Occupational Mix Survey)
5. Hospital Applications for Geographic Reclassifications by the
MGCRB
6. ICRs for the Quality Reporting Program for LTCHs
Regulation Text
Addendum--Schedule of Standardized Amounts, Update Factors, and
Rate-of-Increase Percentages Effective With Cost Reporting Periods
Beginning on or After October 1, 2011
I. Summary and Background
II. Changes to the Prospective Payment Rates for Hospital Inpatient
Operating Costs for Acute Care Hospitals for FY 2012
A. Calculation of the Adjusted Standardized Amount
B. Adjustments for Area Wage Levels and Cost-of-Living
C. MS-DRG Relative Weights
D. Calculation of the Prospective Payment Rates
III. Changes to Payment Rates for Acute Care Hospital Inpatient
Capital-Related Costs for FY 2012
A. Determination of Federal Hospital Inpatient Capital-Related
Prospective Payment Rate Update
B. Calculation of the Inpatient Capital-Related Prospective
Payments for FY 2012
C. Capital Input Price Index
IV. Changes to Payment Rates for Certain Excluded Hospitals: Rate-
of-Increase Percentages for FY 2012
V. Changes to the Payment Rates for the LTCH PPS for FY 2012
A. LTCH PPS Standard Federal Rate for FY 2012
B. Adjustment for Area Wage Levels Under the LTCH PPS for FY
2012
C. Adjustment for LTCH PPS High-Cost Outlier (HCO) Cases
D. Computing the Adjusted LTCH PPS Federal Prospective Payments
for FY 2012
VI. Tables Referenced in This Final Rulemaking and Available Through
the Internet on the CMS Web Site
Appendix A--Economic Analyses
I. Regulatory Impact Analysis
A. Introduction
B. Need
C. Objectives of the IPPS
D. Limitations of Our Analysis for the IPPS
E. Hospitals Included in and Excluded From the IPPS
F. Effects on Hospitals and Hospital Units Excluded From the
IPPS
G. Quantitative Effects of the Policy Changes Under the IPPS for
Operating Costs
1. Basis and Methodology of Estimates
2. Analysis of Table I
3. Impact Analysis of Table II
H. Effects of Other Policy Changes
1. Effects of Policy on HACs, Including Infections
2. Effects of Policy Changes Relating to New Medical Service and
Technology Add-On Payments
3. Effects of Requirements for Hospital Inpatient Quality
Reporting (IQR) Program
4. Effects of Additional Hospital Value-Based Purchasing (VBP)
Program Requirements
5. Effects of Requirements for Hospital Readmissions Reduction
Program
6. Effects of Policy Changes Relating to Payment Adjustments for
Medicare Disproportionate Share Hospitals (DSHs) and Indirect
Medical Education (IME)
7. Effects of the FY 2012 Low-Volume Hospital Payment Adjustment
8. Effects of Changes Relating to MDHs
9. Effects of Policy Relating to CRNA Services Furnished in
Rural Hospitals and CAHs
10. Effects of Changes Relating to ESRD Add-On Payment
11. Effects of Changes Relating to the Reporting Requirements
for Pension Costs for Medicare Cost-Finding and Wage Reporting
Purposes
12. Effects of Implementation of Rural Community Hospital
Demonstration Program
13. Effects of Changes to List of MS-DRGs Subject to the
Postacute Care Transfer and DRG Special Pay Policy
14. Effects of Changes Relating to Hospital Services Furnished
Under Arrangements
15. Effects of Change Relating to CAH Payment for Ambulance
Services
16. Effects of Finalization of Revisions to the Reductions and
Increases to Hospitals' FTE Resident Caps for Graduate Medical
Education Payment Purposes
I. Effects of Changes in the Capital IPPS
1. General Considerations
2. Results
J. Effects of Payment Rate Changes and Policy Changes Under the
LTCH PPS
1. Introduction and General Considerations
2. Impact on Rural Hospitals
3. Anticipated Effects of LTCH PPS Payment Rate Change and
Policy Changes
4. Effect on the Medicare Program
5. Effect on Medicare Beneficiaries
K. Alternatives Considered
L. Overall Conclusion
1. Acute Care Hospitals
2. LTCHs
M. Accounting Statements and Tables
1. Acute Care Hospitals
2. LTCHs
II. Regulatory Flexibility Act (RFA) Analysis
III. Unfunded Mandate Reform Act (UMRA) Analysis
IV. Executive Order 12866
Appendix B: Recommendation of Update Factors for Operating Cost
Rates of Payment for Inpatient Hospital Services
I. Background
II. Inpatient Hospital Update for FY 2012
A. Final FY 2012 Inpatient Hospital Update
B. Final Update for SCHs and MDHs for FY 2012
C. Final FY 2012 Puerto Rico Hospital Update
D. Final Update for Hospitals Excluded From the IPPS
III. Secretary's Recommendation
IV. MedPAC Recommendation for Assessing Payment Adequacy and
Updating Payments in Traditional Medicare
I. Background
A. Summary
1. Acute Care Hospital Inpatient Prospective Payment System (IPPS)
Section 1886(d) of the Social Security Act (the Act) sets forth a
system of payment for the operating costs of acute care hospital
inpatient stays under Medicare Part A (Hospital Insurance) based on
prospectively set rates. Section 1886(g) of the Act requires the
Secretary to pay for the capital-related costs of hospital inpatient
stays under a prospective payment system (PPS). Under these PPSs,
Medicare payment for hospital inpatient operating and capital-related
costs is made at predetermined, specific rates for each hospital
discharge. Discharges are classified according to a list of diagnosis-
related groups (DRGs).
The base payment rate is comprised of a standardized amount that is
divided
[[Page 51482]]
into a labor-related share and a nonlabor-related share. The labor-
related share is adjusted by the wage index applicable to the area
where the hospital is located. If the hospital is located in Alaska or
Hawaii, the nonlabor-related share is adjusted by a cost-of-living
adjustment factor. This base payment rate is multiplied by the DRG
relative weight.
If the hospital treats a high percentage of certain low-income
patients, it receives a percentage add-on payment applied to the DRG-
adjusted base payment rate. This add-on payment, known as the
disproportionate share hospital (DSH) adjustment, provides for a
percentage increase in Medicare payments to hospitals that qualify
under either of two statutory formulas designed to identify hospitals
that serve a disproportionate share of low-income patients. For
qualifying hospitals, the amount of this adjustment varies based on the
outcome of the statutory calculations.
If the hospital is an approved teaching hospital, it receives a
percentage add-on payment for each case paid under the IPPS, known as
the indirect medical education (IME) adjustment. This percentage
varies, depending on the ratio of residents to beds.
Additional payments may be made for cases that involve new
technologies or medical services that have been approved for special
add-on payments. To qualify, a new technology or medical service must
demonstrate that it is a substantial clinical improvement over
technologies or services otherwise available, and that, absent an add-
on payment, it would be inadequately paid under the regular DRG
payment.
The costs incurred by the hospital for a case are evaluated to
determine whether the hospital is eligible for an additional payment as
an outlier case. This additional payment is designed to protect the
hospital from large financial losses due to unusually expensive cases.
Any eligible outlier payment is added to the DRG-adjusted base payment
rate, plus any DSH, IME, and new technology or medical service add-on
adjustments.
Although payments to most hospitals under the IPPS are made on the
basis of the standardized amounts, some categories of hospitals are
paid in whole or in part based on their hospital-specific rate, which
is determined from their costs in a base year. For example, sole
community hospitals (SCHs) receive the higher of a hospital-specific
rate based on their costs in a base year (the highest of FY 1982, FY
1987, FY 1996, or FY 2006) or the IPPS Federal rate based on the
standardized amount. Through and including FY 2006, a Medicare-
dependent, small rural hospital (MDH) received the higher of the
Federal rate or the Federal rate plus 50 percent of the amount by which
the Federal rate is exceeded by the higher of its FY 1982 or FY 1987
hospital-specific rate. As discussed below, for discharges occurring on
or after October 1, 2007, but before October 1, 2012, an MDH will
receive the higher of the Federal rate or the Federal rate plus 75
percent of the amount by which the Federal rate is exceeded by the
highest of its FY 1982, FY 1987, or FY 2002 hospital-specific rate.
SCHs are the sole source of care in their areas, and MDHs are a major
source of care for Medicare beneficiaries in their areas. Specifically,
section 1886(d)(5)(D)(iii) of the Act defines an SCH as a hospital that
is located more than 35 road miles from another hospital or that, by
reason of factors such as isolated location, weather conditions, travel
conditions, or absence of other like hospitals (as determined by the
Secretary), is the sole source of hospital inpatient services
reasonably available to Medicare beneficiaries. In addition, certain
rural hospitals previously designated by the Secretary as essential
access community hospitals are considered SCHs. Section
1886(d)(5)(G)(iv) of the Act defines an MDH as a hospital that is
located in a rural area, has not more than 100 beds, is not an SCH, and
has a high percentage of Medicare discharges (not less than 60 percent
of its inpatient days or discharges in its cost reporting year
beginning in FY 1987 or in two of its three most recently settled
Medicare cost reporting years). Both of these categories of hospitals
are afforded this special payment protection in order to maintain
access to services for beneficiaries.
Section 1886(g) of the Act requires the Secretary to pay for the
capital-related costs of inpatient hospital services ``in accordance
with a prospective payment system established by the Secretary.'' The
basic methodology for determining capital prospective payments is set
forth in our regulations at 42 CFR 412.308 and 412.312. Under the
capital IPPS, payments are adjusted by the same DRG for the case as
they are under the operating IPPS. Capital IPPS payments are also
adjusted for IME and DSH, similar to the adjustments made under the
operating IPPS. In addition, hospitals may receive outlier payments for
those cases that have unusually high costs.
The existing regulations governing payments to hospitals under the
IPPS are located in 42 CFR Part 412, Subparts A through M.
2. Hospitals and Hospital Units Excluded From the IPPS
Under section 1886(d)(1)(B) of the Act, as amended, certain
hospitals and hospital units are excluded from the IPPS. These
hospitals and units are: Rehabilitation hospitals and units; long-term
care hospitals (LTCHs); psychiatric hospitals and units; children's
hospitals; and cancer hospitals. Religious nonmedical health care
institutions (RNHCIs) are also excluded from the IPPS. Various sections
of the Balanced Budget Act of 1997 (BBA, Public Law 105-33), the
Medicare, Medicaid and SCHIP [State Children's Health Insurance
Program] Balanced Budget Refinement Act of 1999 (BBRA, Pub. L. 106-
113), and the Medicare, Medicaid, and SCHIP Benefits Improvement and
Protection Act of 2000 (BIPA, Pub. L. 106-554) provide for the
implementation of PPSs for rehabilitation hospitals and units (referred
to as inpatient rehabilitation facilities (IRFs)), LTCHs, and
psychiatric hospitals and units (referred to as inpatient psychiatric
facilities (IPFs)). (We note that the annual updates to the LTCH PPS
are now included as part of the IPPS annual update document. Updates to
the IRF PPS and IPF PPS are issued as separate documents.) Children's
hospitals, cancer hospitals, and RNHCIs continue to be paid solely
under a reasonable cost-based system subject to a rate-of-increase
ceiling on inpatient operating costs per discharge.
The existing regulations governing payments to excluded hospitals
and hospital units are located in 42 CFR Parts 412 and 413.
3. Long-Term Care Hospital Prospective Payment System (LTCH PPS)
The Medicare prospective payment system (PPS) for LTCHs applies to
hospitals described in section 1886(d)(1)(B)(iv) effective for cost
reporting periods beginning on or after October 1, 2002. The LTCH PPS
was established under the authority of sections 123(a) and (c) of
Public Law 106-113 and section 307(b)(1) of Public Law 106-554 (as
codified under section 1886(m)(1) of the Act). During the 5-year
(optional) transition period, a LTCH's payment under the PPS was based
on an increasing proportion of the LTCH Federal rate with a
corresponding decreasing proportion based on reasonable cost
principles. Effective for cost reporting periods beginning on or after
October 1, 2006, all LTCHs are paid 100 percent of the Federal rate.
The existing regulations governing payment under the LTCH PPS are
located in 42 CFR Part 412, Subpart O. Beginning
[[Page 51483]]
October 1, 2009, we issue the annual updates to the LTCH PPS in the
same documents that update the IPPS (73 FR 26797 through 26798).
4. Critical Access Hospitals (CAHs)
Under sections 1814(l), 1820, and 1834(g) of the Act, payments are
made to critical access hospitals (CAHs) (that is, rural hospitals or
facilities that meet certain statutory requirements) for inpatient and
outpatient services are generally based on 101 percent of reasonable
cost. Reasonable cost is determined under the provisions of section
1861(v)(1)(A) of the Act and existing regulations under 42 CFR Parts
413 and 415.
5. Payments for Graduate Medical Education (GME)
Under section 1886(a)(4) of the Act, costs of approved educational
activities are excluded from the operating costs of inpatient hospital
services. Hospitals with approved graduate medical education (GME)
programs are paid for the direct costs of GME in accordance with
section 1886(h) of the Act. The amount of payment for direct GME costs
for a cost reporting period is based on the hospital's number of
residents in that period and the hospital's costs per resident in a
base year. The existing regulations governing payments to the various
types of hospitals are located in 42 CFR Part 413.
B. Provisions of the Patient Protection and Affordable Care Act (Pub.
L. 111-148) and the Health Care and Education Reconciliation Act of
2010 (Pub. L. 111-152) Applicable to FY 2012
The Patient Protection and Affordable Care Act (Pub. L. 111-148),
enacted on March 23, 2010, and the Health Care and Education
Reconciliation Act of 2010 (Pub. L. 111-152), enacted on March 30,
2010, made a number of changes that affect the IPPS and the LTCH PPS.
(Pub. L. 111-148 and Pub. L. 111-152 are collectively referred to as
the ``Affordable Care Act.'') A number of the provisions of the
Affordable Care Act affect the updates to the IPPS and the LTCH PPS and
providers and suppliers. The provisions of the Affordable Care Act that
were applicable to the IPPS and the LTCH PPS for FYs 2010 and 2011 were
implemented in the following documents:
On June 2, 2010, we issued in the Federal Register a notice (75 FR
31118) that contained the final wage indices, hospital
reclassifications, payment rates, impacts, and other related tables,
effective for the FY 2010 IPPS and the RY 2010 LTCH PPS, which were
required by or directly resulted from implementation of provisions of
the Affordable Care Act.
On August 16, 2010, we issued in the Federal Register a final rule
(75 FR 50042) that implemented provisions of the Affordable Care Act
applicable to the IPPS and LTCH/PPS for FY 2011.
In this final rule, we are implementing the following provisions
(or portions of the following provisions) of the Affordable Care Act
that are applicable to the IPPS and LTCH PPS for FY 2012:
Section 3001 of Public Law 111-148, which provides for
establishment of a hospital value-based purchasing program and
applicable measures for value-based incentive payments with respect to
discharges occurring during FY 2013.
Section 3004 of Public Law 111-148, which provides for the
submission of quality data for LTCHs beginning in FY 2013 in order to
receive the full annual update to the payment rates beginning with FY
2014 and the establishment of quality data measures by FY 2012 for the
FY 2014 payment determination.
Section 3025 of Public Law 111-148, which provides for a
hospital readmissions reduction program and related quality data
reporting measures.
Section 3124 of Public Law 111-148, which provides for
extension of the Medicare-dependent, small rural hospital (MDH) program
through FY 2012.
Section 3401 of Public Law 111-148, which provides for the
incorporation of productivity improvements into the market basket
updates for IPPS hospitals and LTCHs.
In addition, we are continuing in FY 2012 to implement the
following provisions, which were initiated in FY 2011:
Section 10324 of Public Law 111-148, which provided for a
wage adjustment for hospitals located in frontier States.
Sections 3401 and 10319 of Public Law 111-148 and section
1105 of Public Law 111-152, which revise certain market basket update
percentages for IPPS and LTCH PPS payment rates for FY 2012.
Sections 3125 and 10314 of Public Law 111-148, which
provide for temporary percentage increases in payment adjustments to
low-volume hospitals for discharges occurring in FY 2012.
Section 1109 of Public Law 111-152, which provides for
additional payments in FY 2012 for qualifying hospitals in the lowest
quartile of per capita Medicare spending.
Section 5503 of Public Law 111-148, as amended by Public
Law 111-152 and section 203 of Public Law 111-309, which provides for
the reduction in FTE resident caps for direct GME under Medicare for
certain hospitals, and to authorize the ``redistribution'' of the
estimated number of FTE resident slots to other qualified hospitals. In
addition, section 5503 requires the application of these provisions to
IME in the same manner as the FTE resident caps for direct GME.
C. Issuance of a Notice of Proposed Rulemaking
The May 5, 2011 Federal Register (76 FR 25788) included the
proposed rule that set forth proposed changes to the Medicare IPPS for
operating costs and for capital-related costs of acute care hospitals
in FY 2012. We also set forth proposed changes relating to payments for
IME costs and payments to certain hospitals that continue to be
excluded from the IPPS and paid on a reasonable cost basis. In
addition, we set forth proposed changes to the payment rates, factors,
and other payment rate policies under the LTCH PPS for FY 2012.
Below is a summary of the major changes that we proposed to make:
1. Proposed Changes to MS-DRG Classifications and Recalibrations of
Relative Weights
In section II. of the preamble of the proposed rule, we included--
Proposed changes to MS-DRG classifications based on our
yearly review.
Proposed application of the documentation and coding
adjustment for FY 2012 resulting from implementation of the MS-DRG
system.
A discussion of the Research Triangle Institute,
International (RTI) reports and recommendations relating to charge
compression.
Proposed recalibrations of the MS-DRG relative weights.
Proposed changes to hospital-acquired conditions (HACs)
and a listing and discussion of HACs, including infections, that would
be subject to the statutorily required quality adjustment in MS-DRG
payments for FY 2012.
We discussed the FY 2012 status of new technologies approved for
add-on payments for FY 2011 and presented our evaluation and analysis
of the FY 2012 applicants for add-on payments for high-cost new medical
services and technologies (including public input, as directed by
Public Law 108-173, obtained in a town hall meeting).
[[Page 51484]]
2. Proposed Changes to the Hospital Wage Index for Acute Care Hospitals
In section III. of the preamble to the proposed rule, we proposed
revisions to the wage index for acute care hospitals and the annual
update of the wage data. Specific issues addressed included the
following:
The proposed FY 2012 wage index update using wage data
from cost reporting periods beginning in FY 2008.
Analysis and implementation of the proposed FY 2012
occupational mix adjustment to the wage index for acute care hospitals,
including discussion of the 2010 occupational mix survey.
A proposal to change the reporting requirements for
pension costs for the Medicare wage index.
Proposed revisions to the wage index for acute care
hospitals based on hospital redesignations and reclassifications.
The proposed adjustment to the wage index for acute care
hospitals for FY 2012 based on commuting patterns of hospital employees
who reside in a county and work in a different area with a higher wage
index.
The timetable for reviewing and verifying the wage data
used to compute the proposed FY 2012 hospital wage index.
Determination of the labor-related share for the proposed
FY 2012 wage index.
3. Other Decisions and Proposed Changes to the IPPS for Operating Costs
and GME Costs
In section IV. of the preamble of the proposed rule, we discussed a
number of the provisions of the regulations in 42 CFR Parts 412, 413,
and 476, including the following:
The reporting of hospital quality data under the Hospital
Inpatient Quality Reporting (IQR) Program as a condition for receiving
the full annual payment update increase.
The proposed implementation of the Hospital Value-Based
Purchasing Program measures.
The proposed establishment of hospital readmission
measures for reporting of hospital quality data.
The proposed updated national and regional case-mix values
and discharges for purposes of determining RRC status.
The statutorily required IME adjustment factor for FY
2012.
Proposed payment adjustment for low-volume hospitals.
Proposal for counting hospice days in the formula for
determining the payment adjustment for disproportionate share
hospitals.
Proposal for making additional payments for qualifying
hospitals with lowest per enrollee Medicare spending for FY 2012.
Proposal to clarify ESRD add-on payment requirements based
on cost report requirements.
Proposal relating to changes to the reporting requirements
for pension costs for Medicare cost-finding purposes.
Proposal to implement statutory change to the hospital
payment update, including incorporation of a productivity adjustment.
Discussion of the Rural Community Hospital Demonstration
Program and a proposal for making a budget neutrality adjustment for
the demonstration program.
Discussion of August 2010 interim final rule with comment
period and further proposed changes relating to the 3-day payment
window for payments for services provided to outpatients who are later
admitted as inpatients.
4. Proposed FY 2012 Policy Governing the IPPS for Capital-Related Costs
In section V. of the preamble to the proposed rule, we discussed
the proposed payment policy requirements for capital-related costs and
capital payments to hospitals for FY 2012 and the proposed MS-DRG
documentation and coding adjustment for FY 2012.
5. Proposed Changes to the Payment Rates for Certain Excluded
Hospitals: Rate-of-Increase Percentages
In section VI. of the preamble of the proposed rule, we discussed
proposed changes to payments to certain excluded hospitals. In
addition, we discussed proposed changes relating to payment for TEFRA
services furnished under arrangements and payment for ambulance
services furnished by CAH-owned and operated entities.
6. Proposed Changes to the LTCH PPS
In section VII. of the preamble of the proposed rule, we set forth
proposed changes to the payment rates, factors, and other payment rate
policies under the LTCH PPS for FY 2012, including the annual update of
the MS-LTC-DRG classifications and relative weights for use under the
LTCH PPS for FY 2012 and the proposed rebasing and revising of the
market basket for LTCHs. In addition, we set forth proposals for
implementing the quality data reporting program for LTCHs. We also
proposed to clarify two policies regarding the calculation of the
average length of stay requirement for LTCHs, and proposed a policy to
address a LTCH moratorium issue.
7. Determining Proposed Prospective Payment Operating and Capital Rates
and Rate-of-Increase Limits for Acute Care Hospitals
In the Addendum to the proposed rule, we set forth proposed changes
to the amounts and factors for determining the proposed FY 2012
prospective payment rates for operating costs and capital-related costs
for acute care hospitals. We also proposed to establish the threshold
amounts for outlier cases. In addition, we addressed the proposed
update factors for determining the rate-of-increase limits for cost
reporting periods beginning in FY 2012 for certain hospitals excluded
from the IPPS.
8. Determining Proposed Prospective Payment Rates for LTCHs
In the Addendum to the proposed rule, we set forth proposed changes
to the amounts and factors for determining the proposed FY 2012
prospective standard Federal rate. We also proposed to establish the
proposed adjustments for wage levels, the labor-related share, the
cost-of-living adjustment, and high-cost outliers, including the fixed-
loss amount, and the LTCH cost-to-charge ratios (CCRs) under the LTCH
PPS.
9. Impact Analysis
In Appendix A of the proposed rule, we set forth an analysis of the
impact that the proposed changes would have on affected acute care
hospitals and LTCHs.
10. Recommendation of Update Factors for Operating Cost Rates of
Payment for Hospital Inpatient Services
In Appendix B of the proposed rule, as required by sections
1886(e)(4) and (e)(5) of the Act, we provided our recommendations of
the appropriate percentage changes for FY 2012 for the following:
A single average standardized amount for all areas for
hospital inpatient services paid under the IPPS for operating costs of
acute care hospitals (and hospital-specific rates applicable to SCHs
and MDHs).
Target rate-of-increase limits to the allowable operating
costs of hospital inpatient services furnished by certain hospitals
excluded from the IPPS.
The standard Federal rate for hospital inpatient services
furnished by LTCHs.
11. Discussion of Medicare Payment Advisory Commission Recommendations
Under section 1805(b) of the Act, MedPAC is required to submit a
report to Congress, no later than March 1 of each year, in which MedPAC
reviews
[[Page 51485]]
and makes recommendations on Medicare payment policies. MedPAC's March
2011 recommendations concerning hospital inpatient payment policies
address the update factor for hospital inpatient operating costs and
capital-related costs under the IPPS, for hospitals and distinct part
hospital units excluded from the IPPS. We addressed these
recommendations in Appendix B of the proposed rule. For further
information relating specifically to the MedPAC March 2011 report or to
obtain a copy of the report, contact MedPAC at (202) 220-3700 or visit
MedPAC's Web site at: http://www.medpac.gov.
D. Public Comments Received in Response to the FY 2012 IPPS/LTCH PPS
Proposed Rule
We received approximately 385 timely pieces of correspondence
containing multiple comments on the FY 2012 IPPS/LTCH PPS proposed
rule. We note that some of these public comments were outside of the
scope of the proposed rule. These out-of-scope public comments are not
addressed with policy responses in this final rule. Summaries of the
public comments that are within the scope of the proposed rule and our
responses to those comments are set forth in the various sections of
this final rule under the appropriate heading.
E. Finalization of Interim Final Rule With Comment Period on Revisions
to the Reductions and Increases to Hospitals' FTE Resident Caps for
Graduate Medical Education Payment Purposes
On March 14, 2011, we issued in the Federal Register (76 FR 13515)
an interim final rule with comment period to implement section 203 of
the Medicare and Medicaid Extenders Act of 2010 (MMEA), Public Law 111-
309, relating to the treatment of teaching hospitals that are members
of the same Medicare graduate medical education (GME) affiliated groups
for the purpose of determining possible full-time equivalent (FTE)
resident cap reductions. We received nine timely pieces of
correspondence in response this interim final rule with comment period.
In section IV.R. of this document, we are summarizing and responding to
these public comments and are finalizing the policies contained in the
interim final rule with comment period without modification.
II. Changes to Medicare Severity Diagnosis-Related Group (MS-DRG)
Classifications and Relative Weights
A. Background
Section 1886(d) of the Act specifies that the Secretary shall
establish a classification system (referred to as DRGs) for inpatient
discharges and adjust payments under the IPPS based on appropriate
weighting factors assigned to each DRG. Therefore, under the IPPS,
Medicare pays for inpatient hospital services on a rate per discharge
basis that varies according to the DRG to which a beneficiary's stay is
assigned. The formula used to calculate payment for a specific case
multiplies an individual hospital's payment rate per case by the weight
of the DRG to which the case is assigned. Each DRG weight represents
the average resources required to care for cases in that particular
DRG, relative to the average resources used to treat cases in all DRGs.
Congress recognized that it would be necessary to recalculate the
DRG relative weights periodically to account for changes in resource
consumption. Accordingly, section 1886(d)(4)(C) of the Act requires
that the Secretary adjust the DRG classifications and relative weights
at least annually. These adjustments are made to reflect changes in
treatment patterns, technology, and any other factors that may change
the relative use of hospital resources.
B. MS-DRG Reclassifications
1. General
As discussed in the preamble to the FY 2008 IPPS final rule with
comment period (72 FR 47138), we focused our efforts in FY 2008 on
making significant reforms to the IPPS consistent with the
recommendations made by MedPAC in its ``Report to the Congress,
Physician-Owned Specialty Hospitals'' in March 2005. MedPAC recommended
that the Secretary refine the entire DRG system by taking severity of
illness into account and applying hospital-specific relative value
(HSRV) weights to DRGs.\1\ We began this reform process by adopting
cost-based weights over a 3-year transition period beginning in FY 2007
and making interim changes to the DRG system for FY 2007 by creating 20
new CMS DRGs and modifying 32 other DRGs across 13 different clinical
areas involving nearly 1.7 million cases. As described in more detail
below, these refinements were intermediate steps towards comprehensive
reform of both the relative weights and the DRG system as we undertook
further study. For FY 2008, we adopted 745 new Medicare Severity DRGs
(MS-DRGs) to replace the CMS DRGs. We refer readers to section II.D. of
the FY 2008 IPPS final rule with comment period for a full detailed
discussion of how the MS-DRG system, based on severity levels of
illness, was established (72 FR 47141).
---------------------------------------------------------------------------
\1\ Medicare Payment Advisory Commission: Report to the
Congress, Physician-Owned Specialty Hospitals, March 2005, page
viii.
---------------------------------------------------------------------------
Currently, cases are classified into MS-DRGs for payment under the
IPPS based on the following information reported by the hospital: The
principal diagnosis, up to eight additional diagnoses, and up to six
procedures performed during the stay. (We refer readers to section
II.G.11.c. of this final rule for a discussion of our efforts to
increase our internal systems capacity to process diagnosis and
procedures on hospital claims to 25 diagnosis codes and 25 procedure
codes prior to the use of the International Classification of Diseases,
10th Revision, Clinical Modification (ICD-10-CM) for diagnosis coding
and the International Classification of Diseases, 10th Revision,
Procedure Coding System (ICD-10 PCS) for inpatient hospital procedure
coding, effective October 1, 2013.) In a small number of MS-DRGs,
classification is also based on the age, sex, and discharge status of
the patient. The diagnosis and procedure information is reported by the
hospital using codes from the International Classification of Diseases,
Ninth Revision, Clinical Modification (ICD-9-CM) prior to October 1,
2013. We refer readers to section II.G.11.b. of this final rule for a
reference to the replacement of ICD-9-CM, Volumes 1 and 2, including
the Official ICD-9-CM Guidelines for Coding and Reporting, Volume 3,
with the ICD-10-CM and ICD-10-PCS, including the Official ICD-10-CM and
ICD-10-PCS Guidelines for Coding and Reporting, effective October 1,
2013 (FY 2014).
The process of developing the MS-DRGs was begun by dividing all
possible principal diagnoses into mutually exclusive principal
diagnosis areas, referred to as Major Diagnostic Categories (MDCs). The
MDCs were formulated by physician panels to ensure that the DRGs would
be clinically coherent. The diagnoses in each MDC correspond to a
single organ system or etiology and, in general, are associated with a
particular medical specialty. Thus, in order to maintain the
requirement of clinical coherence, no final MS-DRG could contain
patients in different MDCs. For example, MDC 6 is Diseases and
Disorders of the Digestive System. This approach is used because
clinical care is generally organized in
[[Page 51486]]
accordance with the organ system affected. However, some MDCs are not
constructed on this basis because they involve multiple organ systems
(for example, MDC 22 (Burns)). For FY 2012, cases will be assigned to
one of 751 MS-DRGs in 25 MDCs. The table below lists the 25 MDCs.
Major Diagnostic Categories
[MDCs]
------------------------------------------------------------------------
------------------------------------------------------------------------
1............................ Diseases and Disorders of the Nervous
System.
2............................ Diseases and Disorders of the Eye.
3............................ Diseases and Disorders of the Ear, Nose,
Mouth, and Throat.
4............................ Diseases and Disorders of the Respiratory
System.
5............................ Diseases and Disorders of the Circulatory
System.
6............................ Diseases and Disorders of the Digestive
System.
7............................ Diseases and Disorders of the
Hepatobiliary System and Pancreas.
8............................ Diseases and Disorders of the
Musculoskeletal System and Connective
Tissue.
9............................ Diseases and Disorders of the Skin,
Subcutaneous Tissue and Breast.
10........................... Endocrine, Nutritional and Metabolic
Diseases and Disorders.
11........................... Diseases and Disorders of the Kidney and
Urinary Tract.
12........................... Diseases and Disorders of the Male
Reproductive System.
13........................... Diseases and Disorders of the Female
Reproductive System.
14........................... Pregnancy, Childbirth, and the
Puerperium.
15........................... Newborns and Other Neonates with
Conditions Originating in the Perinatal
Period.
16........................... Diseases and Disorders of the Blood and
Blood Forming Organs and Immunological
Disorders.
17........................... Myeloproliferative Diseases and Disorders
and Poorly Differentiated Neoplasms.
18........................... Infectious and Parasitic Diseases
(Systemic or Unspecified Sites).
19........................... Mental Diseases and Disorders.
20........................... Alcohol/Drug Use and Alcohol/Drug Induced
Organic Mental Disorders.
21........................... Injuries, Poisonings, and Toxic Effects
of Drugs.
22........................... Burns.
23........................... Factors Influencing Health Status and
Other Contacts with Health Services.
24........................... Multiple Significant Trauma.
25........................... Human Immunodeficiency Virus Infections.
------------------------------------------------------------------------
In general, cases are assigned to an MDC based on the patient's
principal diagnosis before assignment to an MS-DRG. However, under the
most recent version of the Medicare GROUPER (Version 28.0), there are
13 MS-DRGs to which cases are directly assigned on the basis of ICD-9-
CM procedure codes. These MS-DRGs are for heart transplant or implant
of heart assist systems; liver and/or intestinal transplants; bone
marrow transplants; lung transplants; simultaneous pancreas/kidney
transplants; pancreas transplants; and tracheostomies. Cases are
assigned to these MS-DRGs before they are classified to an MDC. The
table below lists the 13 current pre-MDCs.
Pre-Major Diagnostic Categories
[Pre-MDCs]
------------------------------------------------------------------------
------------------------------------------------------------------------
MS-DRG 001........................ Heart Transplant or Implant of Heart
Assist System with MCC.
MS-DRG 002........................ Heart Transplant or Implant of Heart
Assist System without MCC.
MS-DRG 003........................ ECMO or Tracheostomy with Mechanical
Ventilation 96+ Hours or Principal
Diagnosis Except for Face, Mouth,
and Neck Diagnosis with Major O.R.
MS-DRG 004........................ Tracheostomy with Mechanical
Ventilation 96+ Hours or Principal
Diagnosis Except for Face, Mouth,
and Neck Diagnosis with Major O.R.
MS-DRG 005........................ Liver Transplant with MCC or
Intestinal Transplant.
MS-DRG 006........................ Liver Transplant without MCC.
MS-DRG 007........................ Lung Transplant.
MS-DRG 008........................ Simultaneous Pancreas/Kidney
Transplant.
MS-DRG 009........................ Bone Marrow Transplant.
MS-DRG 010........................ Pancreas Transplant.
MS-DRG 011........................ Tracheostomy for Face, Mouth, and
Neck Diagnoses with MCC.
MS-DRG 012........................ Tracheostomy for Face, Mouth, and
Neck Diagnoses with CC.
MS-DRG 013........................ Tracheostomy for Face, Mouth, and
Neck Diagnoses without CC/MCC.
------------------------------------------------------------------------
Once the MDCs were defined, each MDC was evaluated to identify
those additional patient characteristics that would have a consistent
effect on hospital resource consumption. Because the presence of a
surgical procedure that required the use of the operating room would
have a significant effect on the type of hospital resources used by a
patient, most MDCs were initially divided into surgical DRGs and
medical DRGs. Surgical DRGs are based on a hierarchy that orders
operating room (O.R.) procedures or groups of O.R. procedures by
resource intensity. Medical DRGs generally are differentiated on the
basis of diagnosis and age (0 to 17 years of age or greater than 17
years of age). Some surgical and medical DRGs are further
differentiated based on the presence or absence of a complication or
comorbidity (CC) or a major complication or comorbidity (MCC).
Generally, nonsurgical procedures and minor surgical procedures
that are not usually performed in an operating room are not treated as
O.R. procedures. However, there are a few non-O.R. procedures that do
affect MS-DRG
[[Page 51487]]
assignment for certain principal diagnoses. An example is
extracorporeal shock wave lithotripsy for patients with a principal
diagnosis of urinary stones. Lithotripsy procedures are not routinely
performed in an operating room. Therefore, lithotripsy codes are not
classified as O.R. procedures. However, our clinical advisors believe
that patients with urinary stones who undergo extracorporeal shock wave
lithotripsy should be considered similar to other patients who undergo
O.R. procedures. Therefore, we treat this group of patients similar to
patients undergoing O.R. procedures.
Once the medical and surgical classes for an MDC were formed, each
diagnosis class was evaluated to determine if complications or
comorbidities would consistently affect hospital resource consumption.
Each diagnosis was categorized into one of three severity levels. These
three levels include a major complication or comorbidity (MCC), a
complication or comorbidity (CC), or a non-CC. Physician panels
classified each diagnosis code based on a highly iterative process
involving a combination of statistical results from test data as well
as clinical judgment. As stated earlier, we refer readers to section
II.D. of the FY 2008 IPPS final rule with comment period for a full
detailed discussion of how the MS-DRG system was established based on
severity levels of illness (72 FR 47141).
A patient's diagnosis, procedure, discharge status, and demographic
information is entered into the Medicare claims processing systems and
subjected to a series of automated screens called the Medicare Code
Editor (MCE). The MCE screens are designed to identify cases that
require further review before classification into an MS-DRG.
After patient information is screened through the MCE and further
development of the claim is conducted, the cases are classified into
the appropriate MS-DRG by the Medicare GROUPER software program. The
GROUPER program was developed as a means of classifying each case into
an MS-DRG on the basis of the diagnosis and procedure codes and, for a
limited number of MS-DRGs, demographic information (that is, sex, age,
and discharge status).
After cases are screened through the MCE and assigned to an MS-DRG
by the GROUPER, the PRICER software calculates a base MS-DRG payment.
The PRICER calculates the payment for each case covered by the IPPS
based on the MS-DRG relative weight and additional factors associated
with each hospital, such as IME and DSH payment adjustments. These
additional factors increase the payment amount to hospitals above the
base MS-DRG payment.
The records for all Medicare hospital inpatient discharges are
maintained in the Medicare Provider Analysis and Review (MedPAR) file.
The data in this file are used to evaluate possible MS-DRG
classification changes and to recalibrate the MS-DRG weights. However,
in the FY 2000 IPPS final rule (64 FR 41499 and 41500), we discussed a
process for considering non-MedPAR data in the recalibration process.
We stated that for use of non-MedPAR data to be feasible for purposes
of DRG recalibration and reclassification, the data must, among other
things: (1) Be independently verified; (2) reflect a complete set of
cases (or a representative sample of cases); and (3) enable us to
calculate appropriate DRG relative weights and ensure that cases are
classified to the ``correct'' DRG, and to one DRG only, in the
recalibration process. Further, in order for us to consider using
particular non-MedPAR data, we must have sufficient time to evaluate
and test the data. The time necessary to do so depend upon the nature
and quality of the non-MedPAR data submitted. Generally, however, a
significant sample of the non-MedPAR data should be submitted by mid-
October for consideration in conjunction with the next year's proposed
rule. This date allows us time to test the data and make a preliminary
assessment as to the feasibility of using the data. Subsequently, a
complete non-MedPAR database should be submitted by early December for
consideration in conjunction with the next year's proposed rule.
As we indicated above, for FY 2008, we made significant
improvements in the DRG system to recognize severity of illness and
resource usage by adopting MS-DRGs that were reflected in the FY 2008
GROUPER, Version 25.0, and were effective for discharges occurring on
or after October 1, 2007. Our MS-DRG analysis for the FY 2012 proposed
rule was based on data from the September 2010 update of the FY 2010
MedPAR file, which contained hospital bills received through September
30, 2010, for discharges occurring through September 30, 2010. For this
FY 2012 final rule, our MS-DRG analysis is based on data from the March
2011 update of the FY 2010 MedPAR file, which contained hospital bills
received through March 31, 2011, for discharges occurring through
September 30, 2010.
2. Yearly Review for Making MS-DRG Changes
Many of the changes to the MS-DRG classifications we make annually
are the result of specific issues brought to our attention by
interested parties. We encourage individuals with comments about MS-DRG
classifications to submit these comments no later than early December
of each year so they can be carefully considered for possible inclusion
in the annual proposed rule and, if included, may be subjected to
public review and comment. Therefore, similar to the timetable for
interested parties to submit non-MedPAR data for consideration in the
MS-DRG recalibration process, comments about MS-DRG classification
issues should be submitted no later than early December in order to be
considered and possibly included in the next annual proposed rule
updating the IPPS.
The actual process of forming the MS-DRGs was, and will likely
continue to be, highly iterative, involving a combination of
statistical results from test data combined with clinical judgment. In
the FY 2008 IPPS final rule (72 FR 47140 through 47189), we described
in detail the process we used to develop the MS-DRGs that we adopted
for FY 2008. In addition, in deciding whether to make further
modification to the MS-DRGs for particular circumstances brought to our
attention, we considered whether the resource consumption and clinical
characteristics of the patients with a given set of conditions are
significantly different than the remaining patients in the MS-DRG. We
evaluated patient care costs using average charges and lengths of stay
as proxies for costs and relied on the judgment of our medical advisors
to decide whether patients are clinically distinct or similar to other
patients in the MS-DRG. In evaluating resource costs, we considered
both the absolute and percentage differences in average charges between
the cases we selected for review and the remainder of cases in the MS-
DRG. We also considered variation in charges within these groups; that
is, whether observed average differences were consistent across
patients or attributable to cases that were extreme in terms of charges
or length of stay, or both. Further, we considered the number of
patients who will have a given set of characteristics and generally
preferred not to create a new MS-DRG unless it would include a
substantial number of cases.
C. Adoption of the MS-DRGs in FY 2008
In the FY 2006, FY 2007, and FY 2008 IPPS final rules, we discussed
a number
[[Page 51488]]
of recommendations made by MedPAC regarding revisions to the DRG system
used under the IPPS (70 FR 47473 through 47482; 71 FR 47881 through
47939; and 72 FR 47140 through 47189). As we noted in the FY 2006 IPPS
final rule, we had insufficient time to complete a thorough evaluation
of these recommendations for full implementation in FY 2006. However,
we did adopt severity-weighted cardiac DRGs in FY 2006 to address
public comments on this issue and the specific concerns of MedPAC
regarding cardiac surgery DRGs. We also indicated that we planned to
further consider all of MedPAC's recommendations and thoroughly analyze
options and their impacts on the various types of hospitals in the FY
2007 IPPS proposed rule.
For FY 2007, we began this process. In the FY 2007 IPPS proposed
rule, we proposed to adopt Consolidated Severity DRGs (CS DRGs) for FY
2008 (if not earlier). Based on public comments received on the FY 2007
IPPS proposed rule, we decided not to adopt the CS DRGs. In the FY 2007
IPPS final rule (71 FR 47906 through 47912), we discussed several
concerns raised by public commenters regarding the proposal to adopt CS
DRGs. We acknowledged the many public comments suggesting the logic of
Medicare's DRG system should continue to remain in the public domain as
it has since the inception of the PPS. We also acknowledged concerns
about the impact on hospitals and software vendors of moving to a
proprietary system. Several commenters suggested that CMS refine the
existing DRG classification system to preserve the many policy
decisions that were made over the last 20 years and were already
incorporated into the DRG system, such as complexity of services and
new device technologies. Consistent with the concerns expressed in the
public comments, this option had the advantage of using the existing
DRGs as a starting point (which was already familiar to the public) and
retained the benefit of many DRG decisions that were made in recent
years. We stated our belief that the suggested approach of
incorporating severity measures into the existing DRG system was a
viable option that would be evaluated.
Therefore, we decided to make interim changes to the existing DRGs
for FY 2007 by creating 20 new DRGs involving 13 different clinical
areas that would significantly improve the CMS DRG system's recognition
of severity of illness. We also modified 32 DRGs to better capture
differences in severity. The new and revised DRGs were selected from 40
existing CMS DRGs that contained 1,666,476 cases and represented a
number of body systems. In creating these 20 new DRGs, we deleted 8
existing DRGs and modified 32 existing DRGs. We indicated that these
interim steps for FY 2007 were being taken as a prelude to more
comprehensive changes to better account for severity in the DRG system
by FY 2008.
In the FY 2007 IPPS final rule (71 FR 47898), we indicated our
intent to pursue further DRG reform through two initiatives. First, we
announced that we were in the process of engaging a contractor to
assist us with evaluating alternative DRG systems that were raised as
potential alternatives to the CMS DRGs in the public comments. Second,
we indicated our intent to review over 13,000 ICD-9-CM diagnosis codes
as part of making further refinements to the current CMS DRGs to better
recognize severity of illness based on the work that CMS (then HCFA)
did in the mid-1990's in connection with adopting severity DRGs. We
describe below the progress we have made on these two initiatives and
our actions for FYs 2008, 2009, 2010, and 2011, and our proposed and
final actions for FY 2012 based on our continued analysis of reform of
the DRG system. We note that the adoption of the MS-DRGs to better
recognize severity of illness has implications for the outlier
threshold, the application of the postacute care transfer policy, the
measurement of real case-mix versus apparent case-mix, and the IME and
DSH payment adjustments. We discuss these implications for FY 2012 in
other sections of this preamble and in the Addendum to this final rule.
In the FY 2007 IPPS proposed rule, we discussed MedPAC's
recommendations to move to a cost-based HSRV weighting methodology
using HSRVs beginning with the FY 2007 IPPS proposed rule for
determining the DRG relative weights. Although we proposed to adopt the
HSRV weighting methodology for FY 2007, we decided not to adopt the
proposed methodology in the final rule after considering the public
comments we received on the proposal. Instead, in the FY 2007 IPPS
final rule, we adopted a cost-based weighting methodology without the
HSRV portion of the proposed methodology. The cost-based weights were
adopted over a 3-year transition period in \1/3\ increments between FY
2007 and FY 2009. In addition, in the FY 2007 IPPS final rule, we
indicated our intent to further study the HSRV-based methodology as
well as other issues brought to our attention related to the cost-based
weighting methodology adopted in the FY 2007 final rule. There was
significant concern in the public comments that our cost-based
weighting methodology does not adequately account for charge
compression--the practice of applying a higher percentage charge markup
over costs to lower cost items and services and a lower percentage
charge markup over costs to higher cost items and services. Further,
public commenters expressed concern about potential inconsistencies
between how costs and charges are reported on the Medicare cost reports
and charges on the Medicare claims. In the FY 2007 IPPS final rule, we
used costs and charges from the cost reports to determine departmental
level cost-to-charge ratios (CCRs) which we then applied to charges on
the Medicare claims to determine the cost-based weights. The commenters
were concerned about potential distortions to the cost-based weights
that would result from inconsistent reporting between the cost reports
and the Medicare claims. After publication of the FY 2007 IPPS final
rule, we entered into a contract with RTI International (RTI) to study
both charge compression and the extent, if any, to which our
methodology for calculating DRG relative weights is affected by
inconsistencies between how hospitals report costs and charges on the
cost reports and how hospitals report charges on individual claims.
Further, as part of its study of alternative DRG systems, the RAND
Corporation analyzed the HSRV cost-weighting methodology. We refer
readers to section II.E. of the preamble of this final rule for a
discussion of the issue of charge compression and the cost-weighting
methodology for FY 2012.
We believe that revisions to the DRG system to better recognize
severity of illness and changes to the relative weights based on costs
rather than charges are improving the accuracy of the payment rates in
the IPPS. We agree with MedPAC that these refinements should be
pursued. Although we continue to caution that any prospective payment
system based on grouping cases will always present some opportunities
for providers to specialize in cases they believe have higher margins,
we believe that the changes we have adopted and the continuing reforms
we are proposing to make in this proposed rule for FY 2012 will improve
payment accuracy and reduce financial incentives to create specialty
hospitals.
We refer readers to section II.D. of the FY 2008 IPPS final rule
with comment period for a full discussion of how the MS-DRG system was
established based
[[Page 51489]]
on severity levels of illness (72 FR 47141).
D. FY 2012 MS-DRG Documentation and Coding Adjustment, Including the
Applicability to the Hospital-Specific Rates and the Puerto Rico-
Specific Standardized Amount
1. Background on the Prospective MS-DRG Documentation and Coding
Adjustments for FY 2008 and FY 2009 Authorized by Public Law 110-90
As we discussed earlier in this preamble, we adopted the MS-DRG
patient classification system for the IPPS, effective October 1, 2007,
to better recognize severity of illness in Medicare payment rates for
acute care hospitals. The adoption of the MS-DRG system resulted in the
expansion of the number of DRGs from 538 in FY 2007 to 745 in FY 2008.
(Currently, there are 751 MS-DRGs, which include 4 additional MS-DRGs
that we are adopting for FY 2012.) By increasing the number of MS-DRGs
and more fully taking into account patient severity of illness in
Medicare payment rates for acute care hospitals, MS-DRGs encourage
hospitals to improve their documentation and coding of patient
diagnoses.
In the FY 2008 IPPS final rule with comment period (72 FR 47175
through 47186), we indicated that the adoption of the MS-DRGs had the
potential to lead to increases in aggregate payments without a
corresponding increase in actual patient severity of illness due to the
incentives for additional documentation and coding. In that final rule
with comment period, we exercised our authority under section
1886(d)(3)(A)(vi) of the Act, which authorizes us to maintain budget
neutrality by adjusting the national standardized amount, to eliminate
the estimated effect of changes in coding or classification that do not
reflect real changes in case-mix. Our actuaries estimated that
maintaining budget neutrality required an adjustment of -4.8 percent to
the national standardized amount. We provided for phasing in this -4.8
percent adjustment over 3 years. Specifically, we established
prospective documentation and coding adjustments of -1.2 percent for FY
2008, -1.8 percent for FY 2009, and -1.8 percent for FY 2010.
On September 29, 2007, Congress enacted the TMA [Transitional
Medical Assistance], Abstinence Education, and QI [Qualifying
Individuals] Programs Extension Act of 2007, Public Law 110-90. Section
7(a) of Public Law 110-90 reduced the documentation and coding
adjustment made as a result of the MS-DRG system that we adopted in the
FY 2008 IPPS final rule with comment period to -0.6 percent for FY 2008
and -0.9 percent for FY 2009. Section 7(a) of Public Law 110-90 did not
adjust the FY 2010 -1.8 percent documentation and coding adjustment
promulgated in the FY 2008 IPPS final rule with comment period. To
comply with section 7(a) of Public Law 110-90, we promulgated a final
rule on November 27, 2007 (72 FR 66886) that modified the IPPS
documentation and coding adjustment for FY 2008 to -0.6 percent, and
revised the FY 2008 payment rates, factors, and thresholds accordingly.
These revisions were effective on October 1, 2007.
For FY 2009, section 7(a) of Public Law 110-90 required a
documentation and coding adjustment of -0.9 percent instead of the -1.8
percent adjustment established in the FY 2008 IPPS final rule with
comment period. As discussed in the FY 2009 IPPS final rule (73 FR
48447) and required by statute, we applied a documentation and coding
adjustment of -0.9 percent to the FY 2009 IPPS national standardized
amount. The documentation and coding adjustments established in the FY
2008 IPPS final rule with comment period, as amended by Public Law 110-
90, are cumulative. As a result, the -0.9 percent documentation and
coding adjustment for FY 2009 was in addition to the -0.6 percent
adjustment for FY 2008, yielding a combined effect of -1.5 percent.
2. Prospective Adjustment to the Average Standardized Amounts Required
by Section 7(b)(1)(A) of Public Law 110-90
Section 7(b)(1)(A) of Public Law 110-90 requires that, if the
Secretary determines that implementation of the MS-DRG system resulted
in changes in documentation and coding that did not reflect real
changes in case-mix for discharges occurring during FY 2008 or FY 2009
that are different than the prospective documentation and coding
adjustments applied under section 7(a) of Public Law 110-90, the
Secretary shall make an appropriate adjustment under section
1886(d)(3)(A)(vi) of the Act. Section 1886(d)(3)(A)(vi) of the Act
authorizes adjustments to the average standardized amounts for
subsequent fiscal years in order to eliminate the effect of such coding
or classification changes. These adjustments are intended to ensure
that future annual aggregate IPPS payments are the same as the payments
that otherwise would have been made had the prospective adjustments for
documentation and coding applied in FY 2008 and FY 2009 reflected the
change that occurred in those years.
3. Recoupment or Repayment Adjustments in FYs 2010 Through 2012
Required by Public Law 110-90
If, based on a retroactive evaluation of claims data, the Secretary
determines that implementation of the MS-DRG system resulted in changes
in documentation and coding that did not reflect real changes in case-
mix for discharges occurring during FY 2008 or FY 2009 that are
different from the prospective documentation and coding adjustments
applied under section 7(a) of Public Law 110-90, section 7(b)(1)(B) of
Public Law 110-90 requires the Secretary to make an additional
adjustment to the standardized amounts under section 1886(d) of the
Act. This adjustment must offset the estimated increase or decrease in
aggregate payments for FYs 2008 and 2009 (including interest) resulting
from the difference between the estimated actual documentation and
coding effect and the documentation and coding adjustment applied under
section 7(a) of Public Law 110-90. This adjustment is in addition to
making an appropriate adjustment to the standardized amounts under
section 1886(d)(3)(A)(vi) of the Act as required by section 7(b)(1)(A)
of Public Law 110-90. That is, these adjustments are intended to recoup
(or repay, in the case of underpayments) spending in excess of (or less
than) spending that would have occurred had the prospective adjustments
for changes in documentation and coding applied in FY 2008 and FY 2009
precisely matched the changes that occurred in those years. Public Law
110-90 requires that the Secretary make these recoupment or repayment
adjustments for discharges occurring during FYs 2010, 2011, and 2012.
4. Retrospective Evaluation of FY 2008 and FY 2009 Claims Data
In order to implement the requirements of section 7 of Public Law
110-90, we indicated in the FY 2009 IPPS final rule (73 FR 48450) that
we planned a thorough retrospective evaluation of our claims data. We
stated that the results of this evaluation would be used by our
actuaries to determine any necessary payment adjustments to the
standardized amounts under section 1886(d) of the Act to ensure the
budget neutrality of the MS-DRGs implementation for FY 2008 and FY
2009, as required by law. In the FY 2009 IPPS proposed rule (73 FR
23541 through 23542), we described our preliminary plan for a
retrospective analysis of inpatient hospital claims
[[Page 51490]]
data and invited public input on our proposed methodology.
In that proposed rule, we indicated that we intended to measure and
corroborate the extent of the overall national average changes in case-
mix for FY 2008 and FY 2009. We expected that the two largest parts of
this overall national average change would be attributable to
underlying changes in actual patient severity of illness and to
documentation and coding improvements under the MS-DRG system. In order
to separate the two effects, we planned to isolate the effect of shifts
in cases among base DRGs from the effect of shifts in the types of
cases within base DRGs.
The MS-DRGs divide the base DRGs into three severity levels (with
MCC, with CC, and without CC); the previously used CMS DRGs had only
two severity levels (with CC and without CC). Under the CMS DRG system,
the majority of hospital discharges had a secondary diagnosis which was
on the CC list, which led to the higher severity level. The MS-DRGs
significantly changed the code lists of what was classified as an MCC
or a CC. Many codes that were previously classified as a CC are no
longer included on the MS-DRG CC list because the data and clinical
review showed these conditions did not lead to a significant increase
in resource use. The addition of a new level of high severity
conditions, the MCC list, also provided a new incentive to code more
precisely in order to increase the severity level. We anticipated that
hospitals would examine the MS-DRG MCC and CC code lists and then work
with physicians and coders on documentation and coding practices so
that coders could appropriately assign codes from the highest possible
severity level. We note that there have been numerous seminars and
training sessions on this particular coding issue. The topic of
improving documentation practices in order to code conditions on the
MCC list was also discussed extensively by participants at the March
11-12, 2009 ICD-9-CM Coordination and Maintenance Committee meeting.
Participants discussed their hospitals' efforts to encourage physicians
to provide more precise documentation so that coders could
appropriately assign codes that would lead to a higher severity level.
Because we expected most of the documentation and coding changes under
the MS-DRG system would occur in the secondary diagnoses, we believed
that the shifts among base DRGs were less likely to be the result of
the MS-DRG system and the shifts within base DRGs were more likely to
be the result of the MS-DRG system. We also anticipated evaluating data
to identify the specific MS-DRGs and diagnoses that contributed
significantly to the documentation and coding payment effect and to
quantify their impact. This step entailed analysis of the secondary
diagnoses driving the shifts in severity within specific base DRGs.
In the FY 2009 IPPS proposed rule, we solicited public comments on
the analysis plans described above, as well as suggestions on other
possible approaches for performing a retrospective analysis to identify
the amount of case-mix changes that occurred in FY 2008 and FY 2009
that did not reflect real increases in patient severity of illness.
A few commenters, including MedPAC, expressed support for the
analytic approach described in the FY 2009 IPPS proposed rule. A number
of other commenters expressed concerns about certain aspects of the
approach and/or suggested alternate analyses or study designs. In
addition, one commenter recommended that any determination or
retrospective evaluation by the actuaries of the impact of the MS-DRGs
on case-mix be open to public scrutiny prior to the implementation of
the payment adjustments beginning in FY 2010.
We took these comments into consideration as we developed our
proposed analysis plan, and in the FY 2010 IPPS/RY 2010 LTCH PPS
proposed rule (74 FR 24092 through 24101), we solicited public comment
on our methodology and analysis. For the FY 2010 IPPS/RY 2010 LTCH PPS
proposed rule, we performed a retrospective evaluation of the FY 2008
data for claims paid through December 2008. Based on this evaluation,
our actuaries determined that implementation of the MS-DRG system
resulted in a 2.5 percent change due to documentation and coding that
did not reflect real changes in case-mix for discharges occurring
during FY 2008. In the FY 2010 IPPS/RY 2010 LTCH PPS final rule, we
updated this analysis with FY 2008 data for claims paid through March
2009, and we noted that the estimates for all IPPS remained essentially
the same to those in the proposed rule (42 FR 43770, 43775). Also, in
the FY 2010 IPPS/RY 2010 LTCH PPS final rule (74 FR 43768 through
43772), we responded to comments on our methodology for the
retrospective evaluation of FY 2008 claims data. We refer readers to
that final rule for a detailed description of our analysis and prior
responses to comments.
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50057 through
50068), we performed the same analysis for FY 2009 claims data using
the same methodology as we did for FY 2008 claims. We note that, in the
FY 2011 IPPS/LTCH PPS proposed rule, we performed this analysis using
FY 2009 claims paid through December 2009. In the FY 2011 IPPS/LTCH PPS
final rule, we updated the analysis with FY 2009 claims paid through
March 2010, as we discussed in the proposed rule. We note that, for all
IPPS hospitals, other than those in Puerto Rico, the estimates were
unchanged from those in the proposed rule. We refer readers to the FY
2011 IPPS/LTCH PPS final rule (75 FR 50057 through 50068) for a
detailed description of our analysis and prior responses to comments.
The results of the analysis for the FY 2011 proposed and final rules
provided additional support for our conclusion that the proposed 5.4
percent estimate accurately reflected the FY 2009 increases in
documentation and coding under the MS-DRG system.
As in prior years, the FY 2008 and FY 2009 MedPAR files are
available to the public to allow independent analysis of the FY 2008
and FY 2009 documentation and coding effect. Interested individuals may
still order these files through the Web site at: http://www.cms.hhs.gov/LimitedDataSets/ by clicking on MedPAR Limited Data Set
(LDS)-Hospital (National). This Web page describes the file and
provides directions and further detailed instructions for how to order.
Persons placing an order must send the following: A Letter of
Request, the LDS Data Use Agreement and Research Protocol (refer to the
Web site for further instructions), the LDS Form, and a check for
$3,655 to:
Mailing address if using the U.S. Postal Service: Centers for
Medicare & Medicaid Services, RDDC Account, Accounting Division, P.O.
Box 7520, Baltimore, MD 21207-0520.
Mailing address if using express mail: Centers for Medicare &
Medicaid Services, OFM/Division of Accounting--RDDC, 7500 Security
Boulevard, C3-07-11, Baltimore, MD 21244-1850.
5. Prospective Adjustment for FY 2010 and Subsequent Years Authorized
by Section 7(b)(1)(A) of Public Law 110-90 and Section 1886(d)(3)(vi)
of the Act
Based on our evaluation of FY 2008 Medicare claims data that were
most current at the time of the FY 2010 IPPS/RY 2010 LTCH PPS proposed
rule, the estimated 2.5 percent change in FY 2008 case-mix due to
changes in
[[Page 51491]]
documentation and coding that did not reflect real changes in case-mix
for discharges occurring during FY 2008 exceeded the -0.6 percent
prospective documentation and coding adjustment applied under section
7(a) of Public Law 110-90 by 1.9 percentage points. In the FY 2010
IPPS/RY 2010 LTCH PPS proposed rule (74 FR 24096), we solicited public
comment on our proposal to make a -1.9 percent prospective adjustment
to the standardized amounts under section 1886(d) of the Act to address
the effects of documentation and coding changes unrelated to changes in
real case-mix in FY 2008. In the FY 2010 IPPS/RY 2010 LTCH PPS final
rule, in response to public comments, we indicated that we fully
understood that our proposed adjustment of -1.9 percent would reduce
the increase in payments that affected hospitals would have received in
FY 2009 in the absence of the adjustment, and we determined that it
would be appropriate to postpone adopting documentation and coding
adjustments as authorized under section 7(a) of Public Law 110-90 and
section 1886(d)(3)(A)(vi) of the Act until a full analysis of case-mix
changes could be completed. We refer readers to the FY 2010 IPPS/LTCH
PPS final rule (74 FR 43767 through 43777) for a detailed description
of our proposal, responses to comments, and finalized policy.
After analysis of the FY 2009 claims data for the FY 2011 IPPS/LTCH
PPS final rule (75 FR 50057 through 50073), we found a total
prospective documentation and coding effect of 1.054. After accounting
for the -0.6 percent and the -0.9 percent documentation and coding
adjustments in FYs 2008 and 2009, we found a remaining documentation
and coding effect of 3.9 percent. As we have discussed, an additional
cumulative adjustment of -3.9 percent would be necessary to meet the
requirements of section 7(b)(1)(A) of Public Law 110-90 to make an
adjustment to the average standardized amounts in order to eliminate
the full effect of the documentation and coding changes on future
payments. Unlike section 7(b)(1)(B) of Public Law 110-90, section
7(b)(1)(A) does not specify when we must apply the prospective
adjustment, but merely requires us to make an ``appropriate''
adjustment. Therefore, as we stated in the FY 2011 IPPS/LTCH PPS final
rule (75 FR 50061), we believe we have some discretion as to the manner
in which we apply the prospective adjustment of -3.9 percent. We
indicated that applying the full prospective adjustment of -3.9 percent
for FY 2011, in combination with the proposed recoupment adjustment of
-2.9 percent in FY 2011 (discussed below) would require an aggregate
adjustment of -6.8 percent. As we discuss elsewhere in this section
II.D., and more extensively in the FY 2011 IPPS/LTCH PPS final rule, it
has been our practice to moderate payment adjustments when necessary to
mitigate the effects of significant downward adjustments on hospitals,
to avoid what could be widespread, disruptive effects of such
adjustments on hospitals. As we also discuss below in this section
II.D., we are required to implement the remaining adjustment in section
7(b)(1)(B) of Public Law 110-90 no later than the FY 2012 rulemaking
period, and accordingly, in the FY 2011 IPPS/LTCH PPS proposed rule, we
proposed a recoupment adjustment under section 7(b)(1)(B) of -2.9
percent for FY 2011 (75 FR 23870 and 23871). Therefore, we stated that
we believed it was appropriate to not implement any or all of the -3.9
percent prospective adjustment in FY 2011. Accordingly, we did not
propose a prospective adjustment under section 7(b)(1)(A) of Public Law
110-90 for FY 2011 (75 FR 23868 through 23870) for FY 2011. We note
that, as a result, payments in FY 2011 (and in each future year until
we implement the requisite adjustment) would be 3.9 percent higher than
they would have been if we had implemented an adjustment under section
7(b)(1)(A) of Public Law 110-90. Our actuaries estimate that this 3.9
percentage point increase will result in an aggregate payment of
approximately $4 billion. We also noted that payments in FY 2010 were
also expected to be 3.9 percent higher than they would have been if we
had implemented an adjustment under section 7(b)(1)(A) of Public Law
110-90, which our actuaries estimated increased aggregate payments by
approximately $4 billion in FY 2010.
In the FY 2012 IPPS/LTCH PPS proposed rule (76 FR 25803 and 25804),
we indicated that because further delay of this prospective adjustment
will result in a continued accrual of unrecoverable overpayments, it
was imperative that we proposed a prospective adjustment for FY 2012,
while recognizing CMS' continued desire to mitigate the effects of any
significant downward adjustments to hospitals. Therefore, we proposed a
-3.15 percent prospective adjustment to the standardized amount to
partially eliminate the full effect of the documentation and coding
changes on future payments. Due to the offsetting nature of the
remaining recoupment adjustment under section 7(b)(1)(B) of Public Law
110-90 (described below in section II.D.6. of this preamble), and after
considering other payment adjustments to FY 2012 rates proposed
elsewhere within the proposed rule, we indicated that we believe the
proposed -3.15 percent adjustment would allow for a significant
reduction in potential unrecoverable overpayments, yet would maintain a
comparable adjustment level between FY 2011 and FY 2012, reflecting the
applicable percentage increase with a documentation and coding
adjustment. We stated that we recognize that an additional adjustment
of -0.75 (3.9 minus 3.15) percent would be required in future rule
making to complete the necessary -3.9 adjustment to meet CMS' statutory
requirement under section 7(b)(1)(A) of Public Law 110-90. In the
proposed rule, we indicated that we were not at that time proposing a
timeline to implement the remainder of this prospective adjustment.
6. Recoupment or Repayment Adjustment for FY 2010 Authorized by Section
7(b)(1)(B) of Public Law 110-90
As discussed in section II.D.1. of this preamble, section
7(b)(1)(B) of Public Law 110-90 requires the Secretary to make an
adjustment to the standardized amounts under section 1886(d) of the Act
to offset the estimated increase or decrease in aggregate payments for
FY 2008 and FY 2009 (including interest) resulting from the difference
between the estimated actual documentation and coding effect and the
documentation and coding adjustments applied under section 7(a) of
Public Law 110-90. This determination must be based on a retrospective
evaluation of claims data.
In the FY 2010 IPPS/RY 2010 LTCH PPS final rule with comment period
(74 FR 43773), we estimated a 2.5 percent change due to documentation
and coding that did not reflect real changes in case-mix for discharges
occurring during FY 2008, exceeding the -0.6 percent prospective
documentation and coding adjustment applied under section 7(a) of
Public Law 110-90 by 1.9 percentage points. We stated that our
actuaries had estimated that this 1.9 percentage point increase
resulted in an increase in aggregate payments of approximately $2.2
billion in FY 2008. We did not propose to make an adjustment to the FY
2010 average standardized amounts to offset, in whole or in part, the
estimated increase in aggregate payments for discharges occurring in FY
2008, but stated in the proposed rule that we intended to address this
issue in future rulemaking. In the FY 2010 IPPS/RY 2010 LTCH PPS
[[Page 51492]]
final rule (74 FR 43774), we stated that because we would not receive
all FY 2009 claims data prior to publication of the final rule, we
would address any increase or decrease in FY 2009 payments in future
rulemaking for FY 2011 and 2012 after we performed a retrospective
evaluation of the FY 2009 claims data. In response to public comments
in FY 2010, we indicated that we recognized that any adjustment to
account for the documentation and coding effect observed in the FY 2008
and FY 2009 claims data may result in significant future payment
reductions for providers. However, we indicated that we are required
under section 7(b)(1)(B) of Public Law 110-90 to recover the difference
of actual documentation and coding effect in FY 2008 and FY 2009 that
is greater than the prior adjustments. We agreed with the commenters
who requested that CMS delay any adjustment and, for the reasons stated
above, indicated that we expected to address this issue in the FY 2011
rulemaking. We refer readers to the FY 2010 IPPS/RY 2010 LTCH PPS final
rule (74 FR 43767 through 43777) for a detailed description of our
proposal, responses to comments, and finalized policy.
As we indicated in the FY 2011 IPPS/LTCH PPS final rule, the change
due to documentation and coding that did not reflect real changes in
case-mix for discharges occurring during FY 2008 and FY 2009 exceeded
the -0.6 and -0.9 percent prospective documentation and coding
adjustments applied under section 7(a) of Public Law 110-90 for those 2
years, respectively, by 1.9 percentage points in FY 2008 and 3.9
percentage points in FY 2009. In total, this change exceeded the
cumulative prospective adjustments by 5.8 (1.9 plus 3.9) percentage
points. Our actuaries estimated that this 5.8 percentage point increase
resulted in an increase in aggregate payments of approximately $6.9
billion. In the FY 2011 IPPS/LTCH PPS final rule, we noted that there
may be a need to actuarially adjust the recoupment adjustment to
accurately reflect accumulated interest. Therefore, we determined that
an aggregate adjustment of -5.8 percent in FYs 2011 and 2012, subject
to actuarial adjustment to reflect accumulated interest, would be
necessary in order to meet the requirements of section 7(b)(1)(B) of
Public Law 110-90 to adjust the standardized amounts for discharges
occurring in FYs 2010, 2011, and/or 2012 to offset the estimated amount
of the increase in aggregate payments (including interest) in FYs 2008
and 2009. In the FY 2011 IPPS/LTCH PPS proposed rule (75 FR 23871), we
stated that we intended to take into account the need to reflect
accumulated interest in proposing a recoupment adjustment under section
7(b)(1)(B) of Public Law 110-90 for FY 2012.
It is often our practice to phase in rate adjustments over more
than one year in order to moderate the effect on rates in any one year.
Therefore, consistent with the policies that we have adopted in many
similar cases, in the FY 2011 IPPS/LTCH PPS proposed rule, we proposed
to make an adjustment to the standardized amount of -2.9 percent,
representing approximately half of the aggregate adjustment required
under section 7(b)(1)(B) of Public Law 110-90, for FY 2011. An
adjustment of this magnitude would allow us to moderate the effects on
hospitals in one year while simultaneously making it possible to
implement the entire adjustment within the timeframe required under
section 7(b)(1)(B) of Public Law 110-90 (that is, no later than FY
2012).
Unlike the permanent prospective adjustment to the standardized
amounts under section 7(b)(1)(A) of Public Law 110-90 described
earlier, the recoupment adjustment to the standardized amounts under
section 7(b)(1)(B) of Public Law 110-90 is not cumulative, and,
therefore, would be removed for subsequent fiscal years once we have
completely offset the increase in aggregate payments for discharges for
FY 2008 and FY 2009 expenditures. In keeping with our practice of
moderating payment adjustments when necessary, we stated that we
anticipated that the proposal of phasing in the recoupment adjustment
will have an additional, and significant, moderating effect on
implementing the requirements of section 7(b)(1)(B) of Public Law 110-
90 for FY 2012.
In the FY 2011 IPPS/LTCH PPS proposed rule, we sought public
comment on our proposal to offset part of the total 5.8 percent
increase in aggregate payments (including interest) for discharges
occurring in FY 2008 and FY 2009 resulting from the adoption of the MS-
DRGs in FY 2011, noting that this proposal would result in a -2.9
percent adjustment to the standardized amount. We received numerous
comments on our proposal, especially from national and regional
hospital associations, hospital systems, and individual hospitals.
MedPAC also commented on our proposal. We refer readers to the FY 2011
IPPS/LTCH PPS final rule with comment period (75 FR 50055 through
50073) for a detailed description of our analysis and prior responses
to comments, and finalized policy.
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50062 through
50068), we finalized the proposed adjustment to the standardized amount
of -2.9 percent, which represented approximately half of the aggregate
recoupment adjustment required under section 7(b)(1)(B) of Public Law
110-90, for FY 2011. We were persuaded by both the MedPAC's analysis,
and our own review of the methodologies recommended by various
commenters, that the methodology we employed to determine the required
recoupment adjustment was sound. Since the statute required that we
implement the entire recoupment adjustment no later than FY 2012, we
have sought, as we commonly do, to moderate the potential impact on
hospitals by phasing in the required adjustment over more than one
year. As we stated in prior rulemaking, a major advantage of making the
-2.9 percent adjustment to the standardized amount in FY 2011 was that,
because the required recoupment adjustment is not cumulative, we
anticipated removing the FY 2011 -2.9 percent adjustment from the rates
(in other words, making a positive 2.9 percent adjustment to the rates)
in FY 2012, at the same time that the law required us to apply the
remaining approximately -2.9 percent adjustment required by section
7(b)(1)(B) of Public Law 110-90. These two steps in FY 2012, restoring
the FY 2011 -2.9 percent adjustment and then applying the remaining
adjustment of approximately -2.9 percent, would effectively cancel each
other out. The result of these two steps would be an aggregate
adjustment of approximately 0.0 percent. While we stated in the FY 2011
IPPS/LTCH PPS final rule the need to potentially adjust the remaining -
2.9 percent estimate to account for accumulated interest, our actuaries
have determined that there has been no significant interest
accumulation and that no additional adjustment will be required.
Therefore, for FY 2012, pursuant to the timeframes set forth by section
7(b)(1)(B) of Public Law 110-90, and consistent with the discussion in
the FY 2011 IPPS/LTCH PPS final rule, we proposed to complete the
recoupment adjustment by implementing the remaining -2.9 percent
adjustment, in addition to removing the effect of the -2.9 percent
adjustment to the standardized amount finalized for FY 2011. Because
these adjustments will, in effect, balance out, there will be no year-
to-year change in the standardized amount due to this recoupment
adjustment. As this
[[Page 51493]]
adjustment will complete the required recoupment for overpayments due
to documentation and coding effects on discharges occurring in FYs 2008
and 2009, we anticipate removing the effect of this adjustment by
adding 2.9 percent to the standardized amount in FY 2013. We continue
to believe that this is a reasonable and fair approach that satisfies
the requirements of the statute while substantially moderating the
financial impact on hospitals.
Comment: One commenter, MedPAC, reiterated its general support for
the methodology used by our actuaries to estimate the magnitude of
documentation and coding effect on IPPS payments due to the adoption of
the MS-DRG system. In its letter, MedPAC explained that the methodology
used by our actuaries ``is akin to comparing two sets of payments: What
payments actually were in fiscal year 2009 under the 2009 MS-DRGs and
relative weights; and what payments would have been in 2009 if MS-DRGs
had not been adopted and CMS had continued to use the prior (2007) CMS
DRGs and weights.'' MedPAC noted that by taking the difference between
these two sets of payments, the methodology is designed to capture
``the new GROUPER's interaction with how hospitals changed their
documentation and coding. After the adoption of MS-DRGs in 2008,
hospitals switched from recording general descriptions of patients'
chronic conditions--which no longer affect payments under MS-DRGs--to
recording the specific acute manifestations of patients' chronic
conditions, which trigger higher payments under MS-DRGs. However, the
same changes in diagnosis documentation and coding have little or no
effect on the CMI measured using the 2007 CMS-DRGs and weights. This is
because in that version of the GROUPER, both acute manifestations of
chronic conditions and general descriptions of chronic conditions
trigger higher payments. In contrast, when hospitals had little
incentive to change documentation and coding--in 2007, for example--the
two CMIs are approximately equal.''
Consistent with its comments in prior years, MedPAC's comment noted
that its analysis of Medicare hospital inpatient claims for 2007-2009
yielded similar estimates of the documentation and coding effect.
MedPAC concluded that ``CMS would need to reduce IPPS payments
temporarily by 5.8 percent to recover overpayments that occurred in
2008 and 2009. CMS also expected that overpayments equal to 3.9 percent
of annual IPPS payments would continue through 2010, 2011, and future
years until CMS makes a prospective offsetting adjustment (-3.9
percent) to the IPPS payments rates.''
MedPAC's comment described potential circumstances in which the
methodology used both by our actuaries and MedPAC could overestimate
the documentation and coding effect, noting that these possible
circumstances ``could cause only a small change in the estimated effect
of documentation changes.''
MedPAC stated, ``In response to the new MS-DRGs, hospitals had an
incentive to report diagnoses that count as CCs in the new system.
MedPAC's argument is that hospitals may also have stopped reporting
diagnoses that counted as CCs in the old system, but do not count in
the new one.'' In short, MedPAC argued that the disappearance of the
general chronic condition codes could have caused the CMIs based on the
old FY 2007 GROUPER and weights to be understated in FYs 2008 and 2009.
Thus, because CMIs based on the 2007 GROUPER and weights are the
denominators of the documentation change estimates, understatement
would bias the estimates upward. However, understatement would occur
only to the extent that hospitals, when coding: (1) Did not replace
such general chronic condition codes with corresponding acute
manifestation codes and (2) the patient had no other secondary
diagnosis code that qualified as a CC in the old GROUPER and are now
CCs or MCCs under the MS-DRGs.
MedPAC's analysis concluded that the maximum possible effect of
this potential overestimation is 0.36 percent, and ``that total
overpayments due to documentation changes in 2008 and 2009 may have
ranged from 5.1 to 5.8 percent of IPPS payments ($6.0 to $6.9
billion).''
MedPAC recommended that CMS slow the pace of the payment
adjustments so that hospitals would receive a net 1 percent update in
FY 2012, as it recommend in its March 2011 Report to Congress.
Furthermore, MedPAC stated that legislation should be enacted to
require the Secretary of Health and Human Services to adjust payments
further to recover all overpayments that have occurred or will occur in
FYs 2010, 2011, and 2012 because the prospective adjustment was not
completed. MedPAC asserted that:
``To allow payments to increase due to documentation and coding
changes would undermine Congressional policy on updates. If Congress
wants more money to flow into the hospital sector, a higher update is
the appropriate mechanism, not cumulative changes in documentation and
coding. Indeed, allowing those changes to increase hospital payments
through the back door could eventually discourage needed refinements to
the case-mix system in a tight budget era. In other words, if more
money inevitably leaks into the system every time case-mix is refined,
then there may be pressure to stop refining. That would lead to
inequities for both providers and patients.''
Response: We appreciate MedPAC's analysis and continued support of
the methodology used to determine the documentation and coding effect,
and we agree that this methodology appropriately isolates the
documentation and coding effect from real case-mix. With the exception
of the possible overstatement described above, we note that MedPAC's
analysis yielded results similar to CMS' determination of the
documentation and coding effect. Based on our evaluation of FY 2008 and
FY 2009 claims, we continue to believe that $6.9 billion dollars in
overpayments were made during the period of FY 2008 and 2009. We
estimate that a recoupment adjustment totaling 5.8 percent is necessary
to recover these overpayments, and that operating IPPS rates are
currently overstated by 3.9 percent. We also note that section
7(b)(1)(B) of the TMA requires the agency to recover these overpayments
by FY 2012 and that section 7(b)(1)(A) of the TMA requires the agency
to adjust rates to ensure that aggregate payments do not continue to be
overstated.
With regard to MedPAC's analysis regarding the possible
overestimate of the documentation and coding effect, we note that
MedPAC characterized the potential effect as ``small'' and provided no
corroborating analysis or specific examples of when this scenario may
have occurred. We consulted with our medical coding experts and were
unable to identify specific examples to support MedPAC's hypothesis. We
note that MedPAC stated in its comment letter that the potential for
overestimation exists only to the extent that ``hospitals (1) did not
replace such general chronic condition codes with corresponding acute
manifestation codes and (2) the patient had no other secondary
diagnosis code that qualified as a CC in the old grouper.'' We reviewed
coding changes that occurred during the transition to MS-DRGs and were
able to identify codes that would result in a CC prior to MS-DRGs but
would not result in a CC in the MS-DRG system. However, we were unable
to identify an instance where this would necessarily result in a lower
MS-DRG assignment because more specific codes were
[[Page 51494]]
developed to support the more refined MS-DRG system and we would expect
hospitals to use the more specific codes. For instance, congestive
heart failure was a CC under CMS DRGs, but is not a CC under MS-DRGs.
Under MS-DRGs, we started requiring more specific information on the
type of heart failure in order to count this as a CC or MCC. Generally,
under the MS-DRG system, the ``unspecified'' codes in a category no
longer result in CCs.
We did not receive any other public comments regarding MedPAC's
statements that we may have overestimated the effect of the
documentation and coding by considering cases grouped under the MS-DRG
system as having a higher severity due to being coded without
appropriate CCs under the pre-MS-DRG system.
At this time, we believe it would not be appropriate to revise our
estimates based solely on MedPAC's analysis without knowing of any
specific examples of the scenario described above. Without this
information, we cannot determine whether there was a sufficient volume
of cases to cause a potential documentation and coding overestimate.
However, we welcome specific examples from the public to possibly
inform future rulemaking.
We acknowledge MedPAC's recommendation to provide hospitals with a
net 1 percent update. As noted above, the comment restates MedPAC's
recommendation from its March 2011 Report to Congress. We address this
issue below in our response to comments by the provider community that
expressed concern regarding the impact of various payment adjustments
on hospitals.
We also acknowledge MedPAC's request that additional statutory
authority be granted to the Secretary of Health and Human Services to
recover overpayments made during subsequent fiscal years.
Lastly, we agree with MedPAC that it is important to continue
refining the methodology of how case mix is measured to ensure payment
accuracy. We note that in this final rule we discuss potential
refinements to the MS-DRG relative weight system, and CMS' active
engagement in implementing the ICD-10 system. These discussions
illustrate the efforts the agency is undertaking to improve the ability
to measure case mix precisely and to pay hospitals for inpatient
services more accurately.
Comment: Most commenters, including national hospital associations,
continued to acknowledge that there were documentation and coding
increases in FY 2008 and FY 2009 that were in excess of the statutory
0.6 percent and 0.9 percent adjustments specified in section 7(a) of
the TMA. However, as in prior rulemakings on this issue, most
commenters again questioned the methodology employed by MedPAC and our
actuaries to determine the magnitude of the excess.
We also received Congressional correspondence from numerous members
of Congress stating that hospitals had expressed concerns regarding the
CMS Actuary's methodology and requesting that CMS ensure that its
methodology accurately reflects changes in patient severity prior to
finalizing adjustments for documentation and coding in response to
hospitals' concerns. Specifically, the correspondence suggested that
CMS could consider alternative methodologies for estimating the effect
of documentation and coding, including trend-based analysis and chart
abstraction.
Several commenters stated that historical case mix trend is
inconsistent with our estimate of the effect of the FY 2008 and FY 2009
documentation and coding changes due to the implementation of the MS-
DRGs. One commenter stated ``Our analysis, which used multiple years of
patient claims, clearly shows that a significant portion of the change
CMS found is actually the continuation of historical trends, rather
than the effect of documentation and coding changes due to
implementation of MS-DRGs. This analysis found a cumulative
documentation and coding effect of 3.6 percent for FYs 2008 and 2009,
as opposed to the 5.4 percent that CMS found.''
Several commenters submitted an historical case-mix trend analysis
last year, which showed a documentation and coding effect of 2.3
percent. An analysis submitted by the same commenters this year showed
a cumulative documentation and coding increase through FY 2009 of 3.6
percent. The commenters revised their analysis to respond to CMS
comments made in last year's rule. Specifically, the national hospital
associations stated that, ``This year we make several modifications to
that trend-based analysis to respond to CMS' critiques as enumerated in
the FY 2011 inpatient PPS final rule. Given that we have addressed the
agency's concerns, we are hopeful that it will give our methodology
fresh consideration.'' One hospital association also pointed out that
CMS included an assumption regarding real case-mix growth in the
adjustment for ``changes in case-mix'' in the capital update framework
at Sec. 412.308(c)(1)(ii) and suggested that the estimate made by our
actuaries regarding documentation and coding be reduced by this
assumption in order to maintain consistency with the capital update
framework.
Commenters also examined the methodology used by our actuaries and
MedPAC using index number theory. As stated by these commenters, ``the
relative case weights in a given grouper are like relative prices in a
price index calculation (in fact they are relative prices for the
different MS-DRGs) and the quantities of discharges in various MS-DRGs
are like the quantities of goods in the price index calculation.''
Commenters claimed that, based on index number theory, the methodology
employed by MedPAC and our actuaries can only provide upper and lower
bounds of the combined effect of documentation and coding and real
case-mix change. MedPAC, however, indicated that knowledge of the 2007
MS-DRG GROUPER, the new MS-DRG GROUPER, historical documentation of
patients' diagnoses, and the changes CMS made when it created the MS-
DRGs can be used to narrow the range of the potential documentation and
coding effect as described above, although they noted that these
``could cause only a small change in the estimated effect of
documentation changes.''
As in past years, several commenters indicated that CMS should use
medical records data to distinguish documentation and coding changes
from real case-mix changes. MedPAC disagreed with the commenters'
rationale that the use of medical records data could determine the
effect of both documentation and coding, and stated the following:
``Gold-standard coders, however, only see the diagnoses written in the
record and therefore are not able to distinguish changes in
documentation from real changes in patients' diagnoses. This method of
recoding existing documentation only works in situations where
hospitals have no incentive to change documentation. That is clearly
not the case with the transition to MS-DRGs.''
Response: We disagree that the new analysis presented by the
national hospital associations has addressed our concerns with the use
of a trend analysis to determine the documentation and coding increase
when a more direct measurement of the relevant increase can be obtained
using our proposed methodology. In last year's rule, we expressed
several concerns with regard to the use of a trend analysis, stating,
``We believe that the determination of an appropriate
[[Page 51495]]
historical trend is less straightforward than our methodology, which,
as described above, simply removes real case-mix growth from the
calculation'' (75 FR 50066). While we pointed out certain analytical
flaws in the trend analysis used last year (for a full discussion, we
refer readers to the FY 2011 IPPS/LTCH PPS final rule (75 FR 50065
through 50066)), we did not state the correction of those flaws would
yield a better documentation and coding estimate than the direct
estimate obtained under our proposed methodology. In fact, we noted
that ``changes in case-mix do not necessarily follow a consistent
pattern over time.'' MedPAC provided analysis in its comment letter
which supported CMS' position. MedPAC's analysis demonstrated that CMI
growth was modest at best, never exceeding plus or minus 1 percent the
decade prior to the introduction of MS-DRGs, and in some years was
negative.
[GRAPHIC] [TIFF OMITTED] TR18AU11.000
The national hospital associations' most significant response to
our critique of their previous analysis in the FY 2011 IPPS/LTCH PPS
final rule was to expand the time period upon which its trend analysis
is based to include years where there were sustained negative changes
in actual CMI. This raised their estimate of documentation and coding
from 2.3 percent to 3.6 percent. We believe that this increase
demonstrates the variability in the estimates that can be obtained
using trend analyses. We also stated in last year's final rule that
``despite our position that our methodology more directly measures the
relevant increase, we did examine the alternative approach favored by
commenters for calculating the documentation and classification
increase. As a general statement, the approach of examining historical
trends to estimate what case-mix would have been in the absence of the
adoption of the MS-DRGs should not necessarily yield significantly
different results from the analysis done by our actuaries and the
MedPAC, if an appropriate historical trend can be determined.''
We reiterate our concerns with the use of historical trends to
determine documentation and coding this year, and we do not believe
that the modifications to the commenters' analysis address all of these
concerns. In particular, we agree with MedPAC that ``absent changes in
documentation and coding and the shift away from inpatient surgeries,
real changes in the CMI in 2008 through 2010 would be completely
consistent with historical CMI changes since 2001.'' In performing its
analysis, MedPAC adjusted for changes in the share of cases with
surgery, share of cases with CCs, and the estimated effects of changes
in documentation and coding. MedPAC summarized the results of its
analysis in the following graph.
[[Page 51496]]
[GRAPHIC] [TIFF OMITTED] TR18AU11.001
In summary, with respect to trend analysis, we continue to believe
that the determination of an appropriate historical trend is less
straightforward than our proposed methodology, which simply removes
real case-mix growth from the calculation. In addition, the estimates
obtained using our proposed methodology are consistent with the
historical case-mix growth, as demonstrated by MedPAC.
We also disagree with commenters who stated that the methodology
employed by MedPAC and our actuaries can only provide upper and lower
bounds of the combined effect of documentation and coding and real
case-mix change and cannot separate documentation and coding effects
from real case-mix change. While MedPAC recognized that the potential
for a range of estimates may exist, MedPAC disagreed with the
conclusion that index number theory, as described above, should be used
to determine this range. MedPAC stated that ``in this instance at
least, the estimated range between the lower and upper bounds based on
this approach is so wide that the estimates are useless for policy
making.'' We agree with MedPAC that the wide range resulting from an
index number theory approach renders such an approach useless in this
context.
In response to commenters' support for using hospital records to
distinguish documentation and coding effect from real case-mix changes,
we agree with MedPAC's rationale that such an analysis would fail to
capture changes in documentation. MedPAC stated: ``In our view, this
approach does not work. The reason is that hospitals had an incentive
to persuade attending physicians to be more specific in describing
patients' acute manifestations of chronic conditions in their medical
records. Some hospitals hired documentation specialists with the goal
of changing physicians' medical record documentation, not simply to do
a better job of coding what they wrote in the record (Hahey 2008).
Gold-standard coders, however, only see the diagnoses written in the
record and therefore are not able to distinguish changes in
documentation from real changes in patients' diagnoses. This method of
recoding existing documentation only works in situations where
hospitals have no incentive to change documentation. That is clearly
not the case with the transition to MS-DRGs. Thus, a very important
part of the effect of changes in documentation and coding cannot be
detected by the proposed method.''
We also note that as one part of our initial documentation and
coding analysis, we attempted to examine coding changes based on
hospital chart data from the Medicare Clinical Data Abstraction Center
(CDAC). However, as we described in the FY 2010 IPPS/LTCH PPS final
rule, it was not possible to perform this analysis due to aberrant CDAC
data. We stated, ``While we attempted to use the CDAC data to
distinguish real increase in case-mix growth from documentation and
coding in the overall case-mix number, we found aberrant data and
significant variation across the FY 1999-FY 2007 analysis period. It
was not possible to distinguish changes in documentation and coding
from changes in real case-mix in the CDAC data. Therefore, we concluded
that the CDAC data would not support analysis of real case-mix growth
that could be used in our retrospective evaluation of the FY 2008
claims data.'' (74 FR 43769)
Finally, we disagree with the commenters' suggestion that the
assumptions in the capital update framework should be applied in our
actuaries' estimate of documentation and coding, because the capital
update framework is intended for projection purposes and would be
inappropriate to use as a proxy for historical trends.
After careful consideration of all of the public comments we
received, including alternatives suggested by commenters, we remain
confident in the accuracy of our methodology and its appropriateness in
determining the required adjustment amounts.
Comment: Numerous commenters expressed concern regarding the
potentially severe negative fiscal impact that would be experienced by
providers if the proposed documentation and coding improvement
adjustment were to
[[Page 51497]]
be implemented. As noted above, MedPAC recommended that CMS reduce its
proposed -3.15 percent adjustment to be consistent with a net update
factor of +1.0 percent, as it recommended in its March 2011 Report to
Congress.
As noted previously, we also received Congressional correspondence
from numerous members of Congress that requested CMS to reconsider what
would be an appropriate adjustment to hospital payments and also
requested that CMS reexamine its methodology. This correspondence noted
that hospitals would experience payment reductions if the proposed rule
were finalized without modification and further stated that hospitals
needed ``adequate Medicare reimbursement to ensure that patients and
communities receive the care they need.''
Response: We recognize the concerns regarding possible financial
disruption that may be caused by the proposed documentation and coding
improvement payment adjustment. We note, however, that these payment
adjustments are necessary to correct past overpayments due solely to
documentation and coding improvements. We have already delayed
implementation of the required prospective adjustment amount, and we
proposed only a portion of the remaining required adjustment to allow
hospitals time to adjust to future payment differences and to moderate
the effect of this adjustment in any given year. We are required under
section 7(b)(1)(B) of the TMA to complete the remaining one-time -2.9
percent recoupment adjustment for FY 2008 and FY 2009 overpayments in
FY 2012, and we believe the impact of completing this adjustment to be
reasonable considering it will be completely offset by removing the FY
2011 recoupment adjustment by placing a +2.9 percent adjustment back to
the standardized amount. In FY 2013, a positive +2.9 percent adjustment
will be made, completing the recoupment process.
In the proposed rule, we stated it was imperative that CMS make a
significant prospective adjustment amount in FY 2012 to prevent the
accumulation of unrecoverable overpayments. As stated in previous
responses to comments, we remain confident in the accuracy of the
overall methodology and its appropriateness in determining the required
adjustment amount. However, after consideration of the public comments,
and in keeping with our longstanding policy to mitigate, when possible,
the effects of significant downward adjustments on hospitals, we are
finalizing a prospective adjustment of -2.0 percent, which is a
reduction from our proposed adjustment of -3.15 percent. We note that
this adjustment will result in a total update of +1.0 percent, in
accordance with MedPAC's recommendation in its March 2011 Report to
Congress for hospitals that report quality data consistent with the
requirements of the Hospital IQR Program. Specifically, as discussed
elsewhere in this final rule, the applicable percentage increase for FY
2012 is +1.9 percent (based on a market basket of +3.0 percent, a
multifactor productivity adjustment of -1.0 percentage point, and a
statutory adjustment of -0.1 percentage point in accordance with
section 3401 of the Affordable Care Act). When combined with the +1.1
adjustment in light of Cape Cod v. Sebelius, 630 F.3d 203 (D.C. Cir.
2011) discussed elsewhere in this final rule, the applicable percentage
increase of +1.9 percent and this proposed prospective adjustment of -
2.0 percent results in a net total update of +1.0 percent, prior to
additional adjustments for budget neutrality and other policy
adjustments. We believe that this level of adjustment will help to
minimize year to year volatility in payment rates due to the required
documentation and coding adjustment. As we stated in the proposed rule,
our analysis found that a prospective adjustment of -3.9 percent
continues to be necessary. Because we are making a -2.0 percent
prospective adjustment for FY 2012, a remaining prospective of
adjustment of -1.9 percent will be necessary. While we are not at this
time stating when we will make the remaining required -1.9 percent
prospective adjustment, we consider it feasible to make all or most of
the adjustment in FY 2013, when a +2.9 percent adjustment will be
factored into rates to offset the one-time FY 2012 recoupment
adjustment.
The table below summarizes the adjustments for FY 2012 for
documentation and coding for IPPS hospitals.
FY 2012 MS-DRG Documentation and Coding Adjustment
--------------------------------------------------------------------------------------------------------------------------------------------------------
Remaining
Required required Prospective Recoupment Remaining
prospective recoupment Total remaining adjustment for adjustment to prospective
adjustment for adjustment for adjustment FY 2012 FY 2012 adjustment
FYs 2008-2009 FYs 2008-2009 payments
--------------------------------------------------------------------------------------------------------------------------------------------------------
Level of Adjustments.............................. -3.9% -2.9% -6.8% -2.0% -2.9% -1.9%
--------------------------------------------------------------------------------------------------------------------------------------------------------
7. Background on the Application of the Documentation and Coding
Adjustment to the Hospital-Specific Rates
Under section 1886(d)(5)(D)(i) of the Act, SCHs are paid based on
whichever of the following rates yields the greatest aggregate payment:
The Federal rate; the updated hospital-specific rate based on FY 1982
costs per discharge; the updated hospital-specific rate based on FY
1987 costs per discharge; the updated hospital-specific rate based on
FY 1996 costs per discharge; or the updated hospital-specific rate
based on FY 2006 costs per discharge. Under section 1886(d)(5)(G) of
the Act, MDHs are paid based on the Federal national rate or, if
higher, the Federal national rate plus 75 percent of the difference
between the Federal national rate and the updated hospital-specific
rate based on the greatest of the FY 1982, FY 1987, or FY 2002 costs
per discharge. In the FY 2008 IPPS final rule with comment period (72
FR 47152 through 47188), we established a policy of applying the
documentation and coding adjustment to the hospital-specific rates. In
that final rule with comment period, we indicated that because SCHs and
MDHs use the same DRG system as all other hospitals, we believe they
should be equally subject to the budget neutrality adjustment that we
are applying for adoption of the MS-DRGs to all other hospitals. In
establishing this policy, we relied on section 1886(d)(3)(A)(vi) of the
Act, which provides us with the authority to adjust ``the standardized
amount'' to eliminate the effect of changes in coding or classification
that do not reflect real change in case-mix.
However, in the final rule that appeared in the Federal Register on
November 27, 2007 (72 FR 66886), we
[[Page 51498]]
rescinded the application of the documentation and coding adjustment to
the hospital-specific rates retroactive to October 1, 2007. In that
final rule, we indicated that, while we still believe it would be
appropriate to apply the documentation and coding adjustment to the
hospital-specific rates, upon further review, we decided that the
application of the documentation and coding adjustment to the hospital-
specific rates is not consistent with the plain meaning of section
1886(d)(3)(A)(vi) of the Act, which only mentions adjusting ``the
standardized amount'' under section 1886(d) of the Act and does not
mention adjusting the hospital-specific rates.
In the FY 2009 IPPS proposed rule (73 FR 23540), we indicated that
we continued to have concerns about this issue. Because hospitals paid
based on the hospital-specific rate use the same MS-DRG system as other
hospitals, we believe they have the potential to realize increased
payments from documentation and coding changes that do not reflect real
increases in patient severity of illness. In section 1886(d)(3)(A)(vi)
of the Act, Congress stipulated that hospitals paid based on the
standardized amount should not receive additional payments based on the
effect of documentation and coding changes that do not reflect real
changes in case-mix. Similarly, we believe that hospitals paid based on
the hospital-specific rates should not have the potential to realize
increased payments due to documentation and coding changes that do not
reflect real increases in patient severity of illness. While we
continue to believe that section 1886(d)(3)(A)(vi) of the Act does not
provide explicit authority for application of the documentation and
coding adjustment to the hospital-specific rates, we believe that we
have the authority to apply the documentation and coding adjustment to
the hospital-specific rates using our special exceptions and adjustment
authority under section 1886(d)(5)(I)(i) of the Act. The special
exceptions and adjustment provision authorizes us to provide ``for such
other exceptions and adjustments to [IPPS] payment amounts * * * as the
Secretary deems appropriate.'' In the FY 2009 IPPS final rule (73 FR
48448 through 48449), we indicated that, for the FY 2010 rulemaking, we
planned to examine our FY 2008 claims data for hospitals paid based on
the hospital-specific rate. We further indicated that if we found
evidence of significant increases in case-mix for patients treated in
these hospitals that do not reflect real changes in case-mix, we would
consider proposing application of the documentation and coding
adjustments to the FY 2010 hospital-specific rates under our authority
in section 1886(d)(5)(I)(i) of the Act.
In response to public comments received on the FY 2009 IPPS
proposed rule, we stated in the FY 2009 IPPS final rule that we would
consider whether such a proposal was warranted for FY 2010. To gather
information to evaluate these considerations, we indicated that we
planned to perform analyses on FY 2008 claims data to examine whether
there has been a significant increase in case-mix for hospitals paid
based on the hospital-specific rate. If we found that application of
the documentation and coding adjustment to the hospital-specific rates
for FY 2010 was warranted, we indicated that we would propose to make
such an adjustment in the FY 2010 IPPS/RY 2010 LTCH PPS proposed rule.
8. Documentation and Coding Adjustment to the Hospital-Specific Rates
for FY 2011 and Subsequent Fiscal Years
In the FY 2010 IPPS/RY 2010 LTCH PPS proposed rule and final rule
(74 FR 24098 through 24100 and 74 FR 43775 through 43776,
respectively), we discussed our retrospective evaluation of the FY 2008
claims data for SCHs and MDHs using the same methodology described
earlier for other IPPS hospitals. We found that, independently for both
SCHs and MDHs, the change due to documentation and coding that did not
reflect real changes in case-mix for discharges occurring during FY
2008 slightly exceeded the proposed 2.5 percent result discussed
earlier for other IPPS hospitals, but did not significantly differ from
that result. We refer readers to those rules for a more complete
discussion.
Therefore, consistent with our statements in prior IPPS rules, we
proposed to use our authority under section 1886(d)(5)(I)(i) of the Act
to prospectively adjust the hospital-specific rates by the proposed -
2.5 percent in FY 2010 to account for our estimated documentation and
coding effect in FY 2008 that does not reflect real changes in case-
mix. We proposed to leave this adjustment in place for subsequent
fiscal years in order to ensure that changes in documentation and
coding resulting from the adoption of the MS-DRGs do not lead to an
increase in aggregate payments for SCHs and MDHs not reflective of an
increase in real case-mix. The proposed -2.5 percent adjustment to the
hospital-specific rates exceeded the -1.9 percent adjustment to the
national standardized amount under section 7(b)(1)(A) of Public Law
110-90 because, unlike the national standardized rates, the FY 2008
hospital-specific rates were not previously reduced in order to account
for anticipated changes in documentation and coding that do not reflect
real changes in case-mix resulting from the adoption of the MS-DRGs.
In the FY 2010 IPPS/RY 2010 LTCH PPS proposed rule (74 FR 24100),
we solicited public comment on this proposal. Consistent with our
approach for IPPS hospitals discussed earlier, in the FY 2010 IPPS/RY
2010 LTCH PPS final rule, we also delayed adoption of a documentation
and coding adjustment to the hospital-specific rate until FY 2011. We
refer readers to the FY 2010 IPPS/RY 2010 LTCH PPS final rule for a
more detailed discussion of our proposal, responses to comments, and
finalized policy.
As we have noted previously, because SCHs and MDHs use the same MS-
DRG system as all other IPPS hospitals, we believe they have the
potential to realize increased payments from documentation and coding
changes that do not reflect real increases in patient severity of
illness. Therefore, we believe they should be equally subject to a
prospective budget neutrality adjustment that we are applying for
adoption of the MS-DRGs to all other hospitals. We believe the
documentation and coding estimates for all subsection (d) hospitals
should be the same. While the findings for the documentation and coding
effect for all IPPS hospitals are similar to the effect for SCHs and
slightly different to the effect for MDHs, we continue to believe that
this is the appropriate policy so as to neither advantage or
disadvantage different types of providers. As we discuss in section
II.D.4. of this preamble, our best estimate, based on the most recently
available data, is that a cumulative adjustment of -5.4 percent is
required to eliminate the full effect of the documentation and coding
changes on future payments to SCHs and MDHs. Unlike the case of
standardized amounts paid to IPPS hospitals, prior to FY 2011, we had
not made any previous adjustments to the hospital-specific rates paid
to SCHs and MDHs to account for documentation and coding changes.
Therefore, the entire -5.4 percent recoupment adjustment needed to be
made, as opposed to a -3.9 percent remaining adjustment for IPPS
hospitals.
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50068 through
50071), we made an adjustment to the standardized
[[Page 51499]]
amount for IPPS hospitals of -2.9 percent under section 7(b)(1)(B) of
Public Law 110-90, for FY 2011. As we noted in the FY 2011 IPPS/LTCH
PPS final rule, in determining the level and pace of adjustments to
account for such documentation and coding changes, we believe that it
is important to maintain, as much as possible, both consistency and
equity among these classes of hospitals. Therefore, we finalized a
prospective adjustment of -2.9 percent to the hospital-specific rates
paid to SCHs and MDHs. We refer readers to the FY 2011 IPPS/LTCH PPS
final rule for a more detailed discussion of our proposal, responses to
comments, and finalized policy.
As discussed earlier in this section II.D., in the FY 2012 IPPS/
LTCH PPS proposed rule, we proposed a net -3.15 percent documentation
and coding adjustment for IPPS hospitals in FY 2012 (-3.15 percent
prospective adjustment plus a -2.9 percent recoupment adjustment in FY
2012, offset by the removal of the -2.9 percent recoupment adjustment
for FY 2010). The proposed IPPS adjustment exceeded the remaining -2.5
percent documentation and coding adjustment for hospitals receiving a
hospital-specific rate (that is, the entire -5.4 percent adjustment,
minus the -2.9 percent adjustment finalized for FY 2011). As we
indicated in the FY 2011 IPPS/LTCH PPS proposed rule and final rule, we
are continuing, as much as possible, consistent with section 7(b)(1) of
Public Law 110-90 and section 1886(d)(5)(I)(i) of the Act, to take such
consistency and equity into account in developing future proposals for
implementing documentation and coding adjustments. We believe that any
adjustment to the hospital-specific rate due to documentation and
coding effect should be as similar as possible to adjustments to the
IPPS rate. Accordingly, we proposed a -2.5 percent payment adjustment
to the hospital-specific rate. We believe that proposing the entire
remaining prospective adjustment of -2.5 percent would allow CMS to
maintain, to the extent possible, similarity and consistency in payment
rates for different IPPS hospitals paid using the MS-DRG. As discussed
below, we took a similar approach in finalizing an adjustment to the
Puerto-Rico specific rate in FY 2011.
Comment: Numerous commenters requested that CMS rescind its
proposed documentation and coding adjustment for SCHs and MDHs and
questioned CMS' statutory authority to apply this adjustment to
providers receiving a hospital-specific rate. The commenters argued
that because section 1886(d)(3)(A)(vi) of the Act only authorizes
application of a documentation and coding adjustment to the
standardized amount, Congress' specific instruction as to the
applicability of this type of adjustment makes it impermissible for CMS
to apply the adjustment to the hospital-specific rates. Furthermore,
commenters contend that, due to their critical role in isolated
communities, any negative documentation and coding adjustment to SCHs
and MDHs would endanger their ability to provide the type of care that
Congress specifically sought to protect by establishing their special
Medicare payment systems.
Response: We continue to disagree with the commenters that the
Secretary's broad authority to make exceptions and adjustment to
payment amounts under section 1886(d)(3)(A)(vi) of the Act cannot be
applied in this instance. We have discussed the basis for applying such
an adjustment in prior rules (in the FY 2009 proposed rule (73 FR
23540), the FY 2009 IPPS final rule (73 FR 48448), and the FY 2010
IPPS/RY 2010 LTCH PPS proposed rule (74 FR 24098)) and do not agree
that the language in section 1886(d)(3)(A)(vi) of the Act limits our
authority under section 1886(d)(5)(I)(i) of the Act to make such an
adjustment. We recognize that SCHs and MDHs are entitled, through
legislation, to receive the hospital-specific rate in order to
compensate for their unique service requirements in the provider
community. Similar to our approach with IPPS hospitals, we are
implementing a phase-in of the documentation and coding adjustment over
an appropriate period, beginning in FY 2011. We will continue to
separately analyze SCH and MDH claims data to ensure than any future
adjustment is appropriate for these provider types.
Comment: MedPAC responded to our request for comments regarding the
level of adjustment for special categories of hospitals, such as
hospitals paid under the hospital-specific payment rate, by pointing
out hospitals have the same financial incentives for documentation and
coding improvements and the same ability to benefit from the resulting
change in case-mix, and by recommending that ``all IPPS hospitals
should be treated the same.'' At the same time, MedPAC also stated that
``delaying prevention of overpayments * * * creates a problem because
overpayments will continue to accumulate in 2010 and later years until
the effect of documentation and coding improvement is fully offset in
the payment rates.'' In setting forward its multi-year recommendation
to CMS for complying with the requirements of section 7 of Public Law
110-90, MedPAC emphasized ``minimizing the accumulation of
overpayments.''
Response: We appreciate MedPAC's comments and agree that it is
appropriate to conclude that hospitals paid under the hospital-specific
rate have experienced a 5.4-percent increase documentation and coding
in FYs 2008 and 2009, insofar as these hospitals had the same financial
incentives to improve documentation and coding in those years as other
IPPS hospitals. We further agree with MedPAC that it is appropriate to
focus on minimizing the accumulation of overpayments, and we interpret
this to mean that MedPAC recommends that CMS move forward as quickly as
possible with prospective adjustments at an appropriate level. We
appreciate MedPAC's guidance that ``all hospitals be treated the
same,'' and stress the importance of consistent treatment of various
classes of similarly situated hospitals in our payment policy
determinations.
We continue to believe that any adjustment to the hospital-specific
rate due to documentation and coding effect should be as similar as
possible to adjustments to the standardized amount. Accordingly,
because we are finalizing a prospective adjustment to the standardized
amount of -2.0 percent for FY 2012, we are also finalizing a
prospective adjustment to the hospital-specific rate of -2.0 percent
for FY 2012, instead of our proposed adjustment of -2.5 percent. Making
this level of adjustment allows CMS to maintain, for FY 2012,
consistency in payment rates for different IPPS hospitals paid using
the MS-DRG. Because this -2.0 percent adjustment no longer reflects the
entire remaining requirement adjustment amount of -2.5 percent, an
additional -0.5 percent adjustment to the hospital-specific payment
rates will be required in future rulemaking.
9. Application of the Documentation and Coding Adjustment to the Puerto
Rico-Specific Standardized Amount
a. Background
Puerto Rico hospitals are paid based on 75 percent of the national
standardized amount and 25 percent of the Puerto Rico-specific
standardized amount. As noted previously, the documentation and coding
adjustment we adopted in the FY 2008 IPPS final rule with comment
period relied upon our authority under section 1886(d)(3)(A)(vi) of the
Act, which provides the Secretary the authority to
[[Page 51500]]
adjust ``the standardized amounts computed under this paragraph'' to
eliminate the effect of changes in coding or classification that do not
reflect real changes in case-mix. Section 1886(d)(3)(A)(vi) of the Act
applies to the national standardized amounts computed under section
1886(d)(3) of the Act, but does not apply to the Puerto Rico-specific
standardized amount computed under section 1886(d)(9)(C) of the Act. In
calculating the FY 2008 payment rates, we made an inadvertent error and
applied the FY 2008 -0.6 percent documentation and coding adjustment to
the Puerto Rico-specific standardized amount, relying on our authority
under section 1886(d)(3)(A)(vi) of the Act. However, section
1886(d)(3)(A)(vi) of the Act authorizes application of a documentation
and coding adjustment to the national standardized amount and does not
apply to the Puerto Rico specific standardized amount. In the FY 2009
IPPS final rule (73 FR 48449), we corrected this inadvertent error by
removing the -0.6 percent documentation and coding adjustment from the
FY 2008 Puerto Rico-specific rates (that is, we made a positive 0.6
percent adjustment, increasing the Puerto Rico-specific rates).
While section 1886(d)(3)(A)(vi) of the Act is not applicable to the
Puerto Rico-specific standardized amount, we believe that we have the
authority to apply the documentation and coding adjustment to the
Puerto Rico-specific standardized amount using our special exceptions
and adjustment authority under section 1886(d)(5)(I)(i) of the Act.
Similar to SCHs and MDHs that are paid based on the hospital-specific
rate, we believe that Puerto Rico hospitals that are paid based on the
Puerto Rico-specific standardized amount should not have the potential
to realize increased payments due to documentation and coding changes
that do not reflect real increases in patient severity of illness.
Consistent with the approach described for SCHs and MDHs, in the FY
2009 IPPS final rule (73 FR 48449), we indicated that we planned to
examine our FY 2008 claims data for hospitals in Puerto Rico. We
indicated in the FY 2009 IPPS proposed rule (73 FR 23541) that if we
found evidence of significant increases in case-mix for patients
treated in these hospitals, we would consider proposing to apply
documentation and coding adjustments to the FY 2010 Puerto Rico-
specific standardized amount under our authority in section
1886(d)(5)(I)(i) of the Act.
b. Documentation and Coding Adjustment to the Puerto Rico-Specific
Standardized Amount
For the FY 2010 IPPS/RY 2010 LTCH PPS proposed rule, we performed a
retrospective evaluation of the FY 2008 claims data for Puerto Rico
hospitals using the same methodology described earlier for IPPS
hospitals paid under the national standardized amounts under section
1886(d) of the Act. We found that, for Puerto Rico hospitals, the
increase in payments for discharges occurring during FY 2008 due to
documentation and coding that did not reflect real changes in case-mix
for discharges occurring during FY 2008 was approximately 1.1 percent.
However, as we noted earlier for IPPS hospitals and hospitals receiving
hospital-specific rates, if the estimated documentation and coding
effect determined based on a full analysis of FY 2009 claims data was
more or less than our then current estimates, it would change, possibly
lessen, the anticipated cumulative adjustments that we had estimated we
would have to make for the FY 2008 and FY 2009 combined adjustment.
Therefore, we believed that it would be more prudent to delay
implementation of the documentation and coding adjustment to allow for
a more complete analysis of FY 2009 claims data for Puerto Rico
hospitals.
In the FY 2010 IPPS/RY 2010 LTCH PPS final rule (74 FR 43777), we
indicated that, given these documentation and coding increases,
consistent with our statements in prior IPPS rules, we would use our
authority under section 1886(d)(5)(I)(i) of the Act to adjust the
Puerto Rico-specific rate and solicited public comment on the proposed
-1.1 percent prospective adjustment. However, in parallel to our
decision to postpone adjustments to the Federal standardized amount, we
also indicated that we were adopting a similar policy for the Puerto
Rico-specific rate for FY 2010 and would consider the phase-in of this
adjustment over an appropriate time period through future rulemaking.
We noted that, as with the hospital-specific rates, the Puerto Rico-
specific standardized amount had not previously been adjusted based on
estimated changes in documentation and coding associated with the
adoption of the MS-DRGs.
Consistent with our approach for IPPS hospitals for FY 2010, we
indicated that we would address in the FY 2011 rulemaking cycle any
change in FY 2009 case-mix due to documentation and coding that did not
reflect real changes in case-mix for discharges occurring during FY
2009.
As we have noted above, similar to SCHs and MDHs, hospitals in
Puerto Rico use the same MS-DRG system as all other hospitals and we
believe they have the potential to realize increased payments from
documentation and coding changes that do not reflect real increases in
patient severity of illness. Therefore, we believe they should be
equally subject to the prospective budget neutrality adjustment that we
intend to apply to prospective payment rates for IPPS hospitals,
including SCHs and MDHs, in order to eliminate the full effect of the
documentation and coding changes associated with implementation of the
MS-DRG system.
As discussed in the FY 2011 IPPS/LTCH PPS final rule (75 FR 50071
through 50073), using the same methodology we applied to estimate
documentation and coding changes under IPPS for non-Puerto Rico
hospitals, our best estimate, based on the then most recently available
data (FY 2009 claims paid through March 2010), was that, for
documentation and coding that occurred over FY 2008 and FY 2009, a
cumulative adjustment of -2.6 percent was required to eliminate the
full effect of the documentation and coding changes on future payments
from the Puerto Rico-specific rate. As we stated above, we believe it
important to maintain both consistency and equity among all hospitals
paid on the basis of the same MS-DRG system. At the same time, however,
we recognize that the estimated cumulative impact on aggregate payment
rates resulting from implementation of the MS-DRG system was smaller
for Puerto Rico hospitals as compared to IPPS hospitals and SCHs and
MDHs. Therefore, in the FY 2011 IPPS/LTCH PPS proposed rule (75 FR
23876), we proposed an adjustment to eliminate the full effect of the
documentation and coding changes on the portion of future payments to
Puerto Rico hospitals based on the Puerto Rico-specific rate. We stated
that we believed that a full prospective adjustment was the most
appropriate means to take into full account the effect of documentation
and coding changes on payments, while maintaining equity as much as
possible between hospitals paid on the basis of different prospective
rates. We noted that our updated data analysis in the FY 2011 IPPS/LTCH
PPS final rule (75 FR 50072 through 50073) showed that this adjustment
would be -2.6 percent. The previous estimate in the proposed rule was a
-2.4 percent adjustment.
One reason we proposed the full prospective adjustment for the
Puerto Rico-specific rate in FY 2011 was to
[[Page 51501]]
maintain equity as much as possible in the documentation and coding
adjustments applied to various hospital rates in FY 2011. Because our
proposal was to make an adjustment that represents the full adjustment
that is warranted for the Puerto Rico-specific rate, we indicated that
we did not anticipate proposing any additional adjustments to this rate
for documentation and coding effects.
Therefore, because the Puerto Rico-specific rate received a full
prospective adjustment of -2.6 percent in FY 2011, we proposed no
further adjustment in the proposed rule for FY 2012.
E. Refinement of the MS-DRG Relative Weight Calculation
1. Background
In the FY 2009 IPPS final rule (73 FR 48450), we continued to
implement significant revisions to Medicare's inpatient hospital rates
by completing our 3-year transition from charge-based relative weights
to cost-based relative weights. Beginning in FY 2007, we implemented
relative weights based on cost report data instead of based on charge
information. We had initially proposed to develop cost-based relative
weights using the hospital-specific relative value cost center (HSRVcc)
methodology as recommended by MedPAC. However, after considering
concerns expressed in the public comments we received on the proposal,
we modified MedPAC's methodology to exclude the hospital-specific
relative weight feature. Instead, we developed national CCRs based on
distinct hospital departments and engaged a contractor to evaluate the
HSRVcc methodology for future consideration. To mitigate payment
instability due to the adoption of cost-based relative weights, we
decided to transition cost-based weights over 3 years by blending them
with charge-based weights beginning in FY 2007. (We refer readers to
the FY 2007 IPPS final rule for details on the HSRVcc methodology and
the 3-year transition blend from charge-based relative weights to cost-
based relative weights (71 FR 47882 through 47898).)
In FY 2008, we adopted severity-based MS-DRGs, which increased the
number of DRGs from 538 to 745. Many commenters raised concerns as to
how the transition from charge-based weights to cost-based weights
would continue with the introduction of new MS-DRGs. We decided to
implement a 2-year transition for the MS-DRGs to coincide with the
remainder of the transition to cost-based relative weights. In FY 2008,
50 percent of the relative weight for each DRG was based on the CMS DRG
relative weight and 50 percent was based on the MS-DRG relative weight.
In FY 2009, the third and final year of the transition from charge-
based weights to cost-based weights, we calculated the MS-DRG relative
weights based on 100 percent of hospital costs. We refer readers to the
FY 2007 IPPS final rule (71 FR 47882) for a more detailed discussion of
our final policy for calculating the cost-based DRG relative weights
and to the FY 2008 IPPS final rule with comment period (72 FR 47199)
for information on how we blended relative weights based on the CMS
DRGs and MS-DRGs.
2. Summary of the RTI Study of Charge Compression and CCR Refinement
As we transitioned to cost-based relative weights, some public
commenters raised concerns about potential bias in the weights due to
``charge compression,'' which is the practice of applying a higher
percentage charge markup over costs to lower cost items and services,
and a lower percentage charge markup over costs to higher cost items
and services. As a result, the cost-based weights would undervalue
high-cost items and overvalue low-cost items if a single CCR is applied
to items of widely varying costs in the same cost center. To address
this concern, in August 2006, we awarded a contract to RTI to study the
effects of charge compression in calculating the relative weights and
to consider methods to reduce the variation in the CCRs across services
within cost centers. RTI issued an interim draft report in January 2007
with its findings on charge compression (which was posted on the CMS
Web site at: http://www.cms.hhs.gov/reports/downloads/Dalton.pdf). In
that report, RTI found that a number of factors contribute to charge
compression and affect the accuracy of the relative weights. RTI's
findings demonstrated that charge compression exists in several CCRs,
most notably in the Medical Supplies and Equipment CCR.
In its interim draft report, RTI offered a number of
recommendations to mitigate the effects of charge compression,
including estimating regression-based CCRs to disaggregate the Medical
Supplies Charged to Patients, Drugs Charged to Patients, and Radiology
cost centers, and adding new cost centers to the Medicare cost report,
such as adding a ``Devices, Implants and Prosthetics'' line under
``Medical Supplies Charged to Patients'' and a ``CT Scanning and MRI''
subscripted line under ``Radiology-Diagnostics''. Despite receiving
public comments in support of the regression-based CCRs as a means to
immediately resolve the problem of charge compression, particularly
within the Medical Supplies and Equipment CCR, we did not adopt RTI's
recommendation to create additional regression-based CCRs. (For more
details on RTI's findings and recommendations, we refer readers to the
FY 2009 IPPS final rule (73 FR 48452).) RTI subsequently expanded its
analysis of charge compression beyond inpatient services to include a
reassessment of the regression-based CCR models using both outpatient
and inpatient charge data. This interim report was made available in
April 2008 during the public comment period on the FY 2009 IPPS
proposed rule and can be found on RTI's Web site at: http://www.rti.org/reports/cms/HHSM-500-2005-0029I/PDF/Refining_Cost_to_Charge_Ratios_200804.pdf. The IPPS-specific chapters, which were
separately displayed in the April 2008 interim report, as well as the
more recent OPPS chapters, were included in the July 3, 2008 RTI final
report entitled, ``Refining Cost-to-Charge Ratios for Calculating APC
[Ambulatory Payment Classification] and DRG Relative Payment Weights,''
that became available at the time of the development of the FY 2009
IPPS final rule. The RTI final report can be found on RTI's Web site
at: http://www.rti.org/reports/cms/HHSM-500-2005-0029I/PDF/Refining_Cost_to_Charge_Ratios_200807_Final.pdf.
RTI's final report found that, under the IPPS and the OPPS,
accounting improvements to the cost reporting data reduce some of the
sources of aggregation bias without having to use regression-based
adjustments. In general, with respect to the regression-based
adjustments, RTI confirmed the findings of its March 2007 report that
regression models are a valid approach for diagnosing potential
aggregation bias within selected services for the IPPS and found that
regression models are equally valid for setting payments under the
OPPS.
RTI also noted that cost-based weights are only one component of a
final prospective payment rate. There are other rate adjustments (wage
index, IME, and DSH) to payments derived from the revised cost-based
weights, and the cumulative effect of these components may not improve
the ability of final payment to reflect resource cost. RTI endorsed
short-term regression-based adjustments, but also concluded that more
refined and accurate accounting data are the preferred long-term
solution to mitigate charge compression and related bias in hospital
cost-based weights. For a more detailed
[[Page 51502]]
summary of RTI's findings, recommendations, and public comments we
received on the report, we refer readers to the FY 2009 IPPS final rule
(73 FR 48452 through 48453).
3. Summary of Policy Changes Made in FY 2011
In the FY 2009 IPPS/LTCH PPS final rule (73 FR 48458 through
48467), in response to the RTI's recommendations concerning cost report
refinements, and because of RAND's finding that regression-based
adjustments to the CCRs do not significantly improve payment accuracy,
we discussed our decision to pursue changes to the cost report to split
the cost center for Medical Supplies Charged to Patients into one line
for ``Medical Supplies Charged to Patients'' and another line for
``Implantable Devices Charged to Patients.'' (We refer readers to the
Web site: http://www.rand.org/pubs/working_papers/WR560/, and the FY
2009 IPPS/LTCH PPS final rule for details on the RAND report (73 FR
48453 through 48457).) We acknowledged, as RTI had found, that charge
compression occurs in several cost centers that exist on the Medicare
cost report. However, as we stated in the FY 2009 IPPS/LTCH PPS final
rule, we focused on the CCR for Medical Supplies and Equipment because
RTI found that the largest impact on the MS-DRG relative weights could
result from correcting charge compression for devices and implants. In
determining what should be reported in these respective cost centers,
we adopted the commenters' recommendation that hospitals should use
revenue codes established by AHA's National Uniform Billing Committee
to determine what should be reported in the ``Medical Supplies Charged
to Patients'' and the ``Implantable Devices Charged to Patients'' cost
centers. Accordingly, a new subscripted line 55.30 for ``Implantable
Devices Charged to Patients'' was created in July 2009 as part of CMS'
Transmittal 20 update to the existing cost report Form CMS-2552-96.
This new subscripted cost center has been available for use for cost
reporting periods beginning on or after May 1, 2009.
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50075 through
50080), we finalized our proposal to create standard cost centers for
CT scans, MRI, and cardiac catheterization, and to require that
hospitals report the costs and charges for these services under new
cost centers on the revised Medicare cost report Form CMS 2552-10. As
we discussed in the FY 2009 IPPS/LTCH PPS and CY 2009 OPPS/ASC proposed
and final rules, RTI found that the costs and charges of CT scans, MRI,
and cardiac catheterization differ significantly from the costs and
charges of other services included in the standard associated cost
center. RTI also concluded that both the IPPS and OPPS relative weights
would better estimate the costs of those services if CMS were to add
standard costs centers for CT scans, MRI, and cardiac catheterization
in order for hospitals to report separately the costs and charges for
those services and in order for CMS to calculate unique CCRs to
estimate the cost from charges on claims data. (We refer readers to the
FY 2011 IPPS/LTCH PPS final rule (75 FR 50075 through 50080) for a more
detailed discussion on the reasons for the creation of standard cost
centers for CT scans, MRI, and cardiac catheterization.) The new
standard cost centers for MRI, CT scans, and cardiac catheterization
are effective for cost report periods beginning on or after May 1,
2010, on the revised cost report Form CMS-2552-10. CMS issued the new
hospital cost report Form CMS-2552-10 on December 30, 2010. The new
cost report form can be accessed at the CMS Web site at: https://www.cms.gov/Manuals/PBM/itemdetail.asp?filterType=none&filterByDID=-99&sortByDID=1&sortOrder=ascending&itemID=CMS021935&intNumPerPage=10.
Once at this Web site, users should double click on ``Chapter 40.''
4. Discussion for FY 2012
In the FY 2009 IPPS/LTCH PPS final rule (73 FR 48468), we stated
that, due to what is typically a 3-year lag between the reporting of
cost report data and the availability for use in ratesetting, we
anticipated that we might be able to use data from the new
``Implantable Devices Charged to Patients'' cost center to develop a
CCR for Implantable Devices Charged to Patients in the FY 2012 or FY
2013 IPPS rulemaking cycle. Specifically, we stated, ``Because there is
approximately a 3-year lag between the availability of cost report data
for IPPS and OPPS rate-setting purposes in a given fiscal year, we may
be able to derive two distinct CCRs, one for medical supplies and one
for devices, for use in calculating the FY 2012 or FY 2013 IPPS
relative weights and the CY 2012 or CY 2013 OPPS relative weights'' (73
FR 48468). However, as noted in the FY 2010 IPPS/LTCH PPS final rule
(74 FR 43782), due to delays in the issuance of the revised cost report
CMS 2552-10, a new CCR for Implantable Devices Charged to Patients may
not be available until FY 2013. Similarly, when we finalized the
decision in the FY 2011 IPPS/LTCH PPS final rule to add new cost
centers for MRI, CT scans, and cardiac catheterization, we explained
that data from any new cost centers that may be created will not be
available until at least 3 years after they are first used (75 FR
50077). That is, in the FY 2011 IPPS/LTCH PPS final rule (75 FR 50077),
we stated that the data from the standard cost centers for MRI, CT
scans, and cardiac catheterization respectively, would not even be
available for possible use in calculating the relative weights earlier
than 3 years after Form CMS-2552-10 becomes available. We further
stated that, at that time, we would analyze the data and determine if
it is appropriate to use those data to create distinct CCRs from these
cost centers for use in the relative weights for the respective payment
systems. We also reassured public commenters that there was no need for
immediate concern regarding possible negative payment impacts on MRI
and CT scans under the IPPS and the OPPS because the cost report data
that would be used for the calculation of the relative weights were at
least 3 years from being available. We stated that we will first
thoroughly analyze and run impacts on the data and provide the public
with the opportunity to comment before distinct CCRs for MRI and CT
scans would be finalized for use in the calculation of the relative
weights. We also urged all hospitals to properly report their costs and
charges for MRI, CT scans, and all other services so that, in several
years' time, we will have reliable data from all hospitals on which to
base a decision as to whether to incorporate additional CCRs into the
relative weight calculation (75 FR 50077).
Accordingly, in preparation for the FY 2012 IPPS/LTCH PPS proposed
rule, we assessed the availability of data in the ``Implantable Devices
Charged to Patients'' cost center. In order to develop a robust
analysis regarding the use of cost data from the ``Implantable Devices
Charged to Patients'' cost center, it was necessary to have a critical
mass of cost reports filed with data in this cost center. The cost
center for ``Implantable Devices Charged to Patients'' is effective for
cost reporting periods beginning on or after May 1, 2009. While
developing the FY 2012 IPPS/LTCH PPS proposed rule, we checked the
availability of FY 2009 cost reports in the December 31, 2010 quarter
ending update of HCRIS, which was the latest upload of FY 2009 cost
report data that we could use for the proposed rule. We determined that
there were only 437 hospitals (out of approximately 3,500 IPPS
hospitals)
[[Page 51503]]
that completed the ``Implantable Devices Charged to Patients'' cost
center. We did not believe that this was a sufficient amount of data
from which to generate a meaningful analysis in this particular
situation. Therefore, we did not propose to use data from the
``Implantable Devices Charged to Patients'' cost center to create a
distinct CCR for Implantable Devices Charged to Patients for use in
calculating the MS-DRG relative weights for FY 2012. We indicated that
we would reassess the availability of data for the ``Implantable
Devices Charged to Patients'' cost center, and the ``MRI, CT Scans, and
Cardiac Catheterization'' cost centers, for the FY 2013 IPPS rulemaking
cycle and, if appropriate, we would propose to create a distinct CCR at
that time.
Comment: Commenters requested that CMS reconsider its position to
not use the data from the implantable device cost center to calculate
the MS-DRG relative weights for FY 2012. The commenter noted that
during the development of the proposed rule, CMS found that only 437
hospitals out of approximately 3,500 IPPS hospitals reported data in
the ``Implantable Devices Charged to Patients'' cost center of the
Medicare hospital cost report based on the December 2010 update of FY
2009 HCRIS. One commenter found, while reviewing the March 2011 update
of FY 2009 HCRIS, that there are approximately 800 hospitals that are
reporting cost information in the implantable medical device cost
center.
Another commenter stated that, based on the December 2010 update of
FY 2009 HCRIS, 804 hospitals reported data on either line 55 (Medical
Supplies Charged to Patients) or line 55.30 (Implantable Devices
Charged to Patients), and in the March 2011 update of FY 2009 HCRIS,
approximately 1,600 hospitals were reporting data on either of those
lines. As such, the commenters believed there is now a sufficient
amount of data to use the implantable device CCR to calculate the
relative weights and improve accuracy of the payment rates. Commenters
also noted that if we do not use the implantable device cost center to
calculate the FY 2012 relative weights, there will be enough data to
develop an implantable device CCR for FY 2013.
One commenter suggested that CMS adopt regression-based CCRs to
calculate the FY 2012 MS-DRG relative weights because CMS does not yet
have sufficient cost report data to develop the implantable device CCR.
This would allow CMS to address charge compression immediately and
improve payment accuracy for medical devices and implantables.
Response: In the FY 2012 IPPS/LTCH PPS proposed rule, we indicated
that we did not have sufficient cost report data to develop the kind of
robust analysis that we assured the public we would provide prior to
implementing a new CCR for implantable medical devices. Therefore, we
stated that we will reassess the availability of data for FY 2013. We
have reviewed the availability of FY 2009 cost reports in the March 31,
2011 quarter ending update of HCRIS, which is the latest upload of FY
2009 cost report data that we currently have available. We have
determined that, for cost reporting periods beginning on or after May
1, 2009, the effective date of line 55.30 (Implantable Devices Charged
to Patients), there are 961 hospitals (out of approximately 3,500 IPPS
hospitals) that have completed the ``Implantable Devices Charged to
Patients'' cost center. This represents an increase of 524 compared to
the 437 entries that we found when developing the FY 2012 proposed
rule. Regardless of the number of hospitals currently reporting data in
the ``Implantable Devices Charged to Patients'' cost center, the data
that were available at the time we were developing our proposed
policies for FY 2012 were insufficient, and we believe it would be
inappropriate to finalize a specific CCR for implantable devices
charged to patients for FY 2012 without an opportunity for the public
to review and comment on our analysis. Rather, we believe that it is
appropriate to wait until FY 2013, when we hope to be able to provide a
proper impact analysis of the addition of a CCR for implantable devices
charged to patients in the relative weights calculation. Accordingly,
we are not implementing a regression-based CCR for implantable devices
at this time. Therefore, we are not implementing any new CCRs for use
in the relative weights calculation for FY 2012.
Comment: Commenters urged CMS to increase education efforts to
encourage faster hospital adoption of the use of the implantable
medical device cost center. Commenters noted that, at the time of the
development of the FY 2012 IPPS/LTCH PPS proposed rule, only 437
hospitals had completed the implantable device cost center, and this
demonstrated that CMS needs to undertake additional outreach to
hospitals to ensure that they appropriately complete the Medicare
hospital cost report.
Response: We agree that it is important that hospitals understand
how to accurately report data in the ``Implantable Devices Charged to
Patients'' cost center, and we have worked to add more clarity to the
cost report instructions. However, we do believe that the December 31,
2010 update of HCRIS reflected relatively few entries for this cost
center because the corresponding cost center line was only available
for use for cost reporting periods beginning on or after May 1, 2009.
This effective date was somewhat awkward in terms of timing and would
not have applied to a large number of hospitals whose data would not be
evident to CMS until the March 31, 2011 update to HCRIS.
Comment: Commenters suggested that CMS monitor the accuracy of the
data reported in the implantable device cost center on the Medicare
hospital cost report. Commenters urged CMS to impress the importance
upon the Medicare Administrative Contractors (MACs) of establishing a
mechanism to audit the implantable device cost center to ensure that
the costs and charges are appropriately reported. One commenter
suggested that CMS require MACs to require hospitals to explain why
they had not reported in the implantable device cost center. In
addition, the commenters suggested that CMS reissue instructions,
similar to Transmittal 321, dated February 28, 2009, to the MACs with
recommendations that MACs develop an audit program for line 55 (Medical
Supplies Charged to Patients) and line 55.30 (Implantable Devices
Charged to Patients). Commenters noted that potential audit mechanisms
include identifying the presence of revenue codes 274, 275, 276 and 624
reported on the PS&R used to settle the cost report, and comparing the
CCR based on line 55.30 to the CCR based on line 55. In addition, one
commenter suggested that the cost reporting software be modified to
create a level 1 error in the case where no data is reported on line
55.30 (Implantable Devices Charged to Patients) to compel hospitals to
report that information.
Response: We agree with the commenters that the cost reporting
lines, whether they are for Implantable Devices Charged to Patients,
MRI, CT scans, cardiac catheterization, or any others, should be
subject to greater audit scrutiny from the Medicare contractors. The
new Medicare cost report form CMS-2552-10, on line 121 of Worksheet S-
2, Part I, asks ``Did this facility incur and report costs for
implantable devices charged to a patient? Enter in column 1 ``Y'' for
yes or ``N'' for no.'' All hospital types, including non-IPPS
hospitals, CAHs, and Maryland inpatient short-term acute hospitals, are
required to properly report their costs and charges, and if the answer
to this question is Y for any type of hospital, then line 72, column
26, of
[[Page 51504]]
Worksheet B, Part I must be greater than 0, with an accurate amount
that reflects the hospital's costs for implantable devices charged to
patients. In addition, we note that a Level 1 edit on the CMS-2552-10
form already exists that ensures that line 72, column 26, of Worksheet
B, Part I (Implantable Devices Charged to Patients on Worksheet A of
the CMS-2552-10 form) is greater than 0 if Worksheet S-2, Part I, line
121 is ``Y''. The edit is also set up for the reverse scenario; that
is, if there is an amount on Worksheet B, Part I, line 72, column 26,
then the response on Worksheet S-2, Part I, line 121 must be ``Y.''
Comment: Some commenters supported not making major refinements to
the calculation of MS-DRG relative weights. Commenters valued the
consistency, transparency, and predictability of the calculation of the
MS-DRG relative weights.
Response: We appreciate the commenters' support for our proposal of
not making major refinements to the MS-DRG relative weights in the
absence of sufficient data from which to create new CCRs. We also value
consistency, transparency, and predictability in the calculation of the
MS-DRG relative weights.
Comment: One commenter supported our decision to create standard
cost centers for CT, MRI, and cardiac catheterization for hospitals to
report their costs and charges on the Medicare hospital cost report. In
addition, the commenter supported urgently adopting the use of the CT,
MRI, and cardiac catheterization cost centers in calculating the MS-DRG
relative weights.
Response: We appreciate the commenter's support. As we stated in
the proposed rule, we will reassess the availability of data for the
``Implantable Devices Charged to Patients'' cost center, and the ``MRI,
CT Scans, and Cardiac Catheterization'' cost centers, for the FY 2013
IPPS rulemaking cycle, and, if appropriate, we will propose to create
distinct CCRs for these cost centers at that time.
Comment: One commenter noted that allogeneic stem cell acquisition
charges are reported using revenue code 0819 for ``Other Organ
Acquisition.'' However, the commenter added, this revenue code is not
part of the 15 national cost center CCRs used in the calculation of the
MS-DRG relative weights. In addition, the commenter stated, the
Medicare hospital cost report does not specifically identify a cost
center for bone marrow acquisition costs. The commenter requested
direction on capturing these acquisition costs and how those costs and
charges are accounted for in the MS-DRG relative weight calculation.
Response: We appreciate this comment, but note that it is not
within the scope of the issues discussed in the FY 2012 IPPS/LTCH PPS
proposed rule regarding the calculation of the MS-DRG relative weights.
However, we also note that allogeneic bone marrow transplant charges
are included in the 15 CCRs, specifically as part of the Blood and
Blood Products CCR and that CCR's associated cost centers on the cost
report.
Comment: One commenter stated that CMS should specifically exclude
sleeve gastrectomy charges derived from the Medicare claims data and
sleeve gastrectomy costs from the Medicare hospital cost report data
from the MS-DRG weight recalibrations. The commenter noted that CMS
excludes Medicare claims for services that are non-covered for Medicare
beneficiaries from the MS-DRG relative weight calculation and,
therefore, sleeve gastrectomy charges should be excluded. In addition,
the commenter recommended that CMS remind providers that Medicare cost
reports should exclude charges and costs associated with the sleeve
gastrectomy procedure, as it is a noncovered service.
Response: We appreciate this comment, but note that it is not
within the scope of the issues discussed in the FY 2012 IPPS/LTCH PPS
proposed rule regarding the calculation of the MS-DRG relative weights.
We will take this issue into consideration for future rulemaking.
Comment: One commenter suggested that CMS evaluate the MedPAR
claims database to ensure that it is not using Medicare managed care
claims data to calculate the MS-DRG relative weights, as CMS has
proposed to only use fee-for-service claims to calculate the MS-DRG
relative weights.
Response: We appreciate this comment, but note that it is not
within the scope of the issues discussed in the FY 2012 IPPS/LTCH PPS
proposed rule regarding the calculation of the MS-DRG relative weights.
However, we note that it is already our policy to exclude managed care
claims from the MS-DRG relative weights calculation.
After consideration of the public comments received, we are not
implementing any new CCRs for use in the relative weights calculation
for FY 2012.
F. Preventable Hospital-Acquired Conditions (HACs), Including
Infections
1. Background
a. Statutory Authority
Section 1886(d)(4)(D) of the Act addresses certain hospital-
acquired conditions (HACs), including infections. Section 1886(d)(4)(D)
of the Act specifies that, by October 1, 2007, the Secretary was
required to select, in consultation with the Centers for Disease
Control and Prevention (CDC), at least two conditions that: (a) are
high cost, high volume, or both; (b) are assigned to a higher paying
MS-DRG when present as a secondary diagnosis (that is, conditions under
the MS-DRG system that are CCs or MCCs); and (c) could reasonably have
been prevented through the application of evidence-based guidelines.
Section 1886(d)(4)(D) of the Act also specifies that the list of
conditions may be revised, again in consultation with CDC, from time to
time as long as the list contains at least two conditions.
Section 1886(d)(4)(D)(iii) of the Act requires that hospitals,
effective with discharges occurring on or after October 1, 2007, submit
information on Medicare claims specifying whether diagnoses were
present on admission (POA). Section 1886(d)(4)(D)(i) of the Act
specifies that, effective for discharges occurring on or after October
1, 2008, Medicare no longer assigns an inpatient hospital discharge to
a higher paying MS-DRG if a selected condition is not POA. Thus, if a
selected condition that was not POA manifests during the hospital stay,
it is considered a HAC and the case is paid as though the secondary
diagnosis was not present. However, even if a HAC manifests during the
hospital stay, if any nonselected CC/MCC appears on the claim, the
claim will be paid at the higher MS-DRG rate. Under the HAC payment
policy, all CCs/MCCs on the claim must be HACs in order to generate a
lower MS-DRG payment. In addition, Medicare continues to assign a
discharge to a higher paying MS-DRG if a selected condition is POA.
The POA indicator reporting requirement and the HAC payment
provision apply to IPPS hospitals only. Non-IPPS hospitals, including
CAHs, LTCHs, IRFs, IPFs, cancer hospitals, children's hospitals,
hospitals in Maryland operating under waivers, rural health clinics,
federally qualified health centers, RNHCIs, and Department of Veterans
Affairs/Department of Defense hospitals, are exempt from POA reporting
and the HAC payment provision. Throughout this section, the
[[Page 51505]]
term ``hospital'' refers to an IPPS hospital.
The HAC provision found in section 1886(d)(4)(D) of the Act is part
of an array of Medicare tools that we are using to promote increased
quality and efficiency of care. Those tools include measuring
performance, using payment incentives, publicly reporting performance
results, applying national and local coverage policy decisions,
enforcing conditions of participation, and providing direct support for
providers through Quality Improvement Organization (QIO) activities.
The application of these tools, such as this HAC provision, is
transforming Medicare from a passive payer to an active purchaser of
higher value health care services. We are applying these strategies for
inpatient hospital care and across the continuum of care for Medicare
beneficiaries.
This effort is highly compatible with the underlying purposes as
well as existing structural features of Medicare's IPPS. Under the
IPPS, hospitals are encouraged to treat patients efficiently because
they receive the same DRG payment for stays that vary in length and in
the services provided, which gives hospitals an incentive to avoid
unnecessary costs in the delivery of care. In some cases, conditions
acquired in the hospital do not generate higher payments than the
hospital would otherwise receive for cases without these conditions. To
this extent, the IPPS encourages hospitals to avoid complications.
However, the treatment of certain conditions can generate higher
Medicare payments in two ways. First, if a hospital incurs
exceptionally high costs treating a patient, the hospital stay may
generate an outlier payment. Because the outlier payment methodology
requires that hospitals experience large losses on outlier cases before
outlier payments are made, hospitals have an incentive to prevent
outliers. Second, under the MS-DRG system that took effect in FY 2008
and that has been refined through rulemaking in subsequent years,
certain conditions can generate higher payments even if the outlier
payment requirements are not met. Under the MS-DRG system, there are
currently 259 sets of MS-DRGs that are split into 2 or 3 subgroups
based on the presence or absence of a CC or an MCC. The presence of a
CC or an MCC generally results in a higher payment. However, since we
implemented the HAC provisions, if a secondary diagnosis acquired
during a hospital stay is a HAC and no other CCs or MCCs are present,
the hospital receives a payment under the MS-DRGs as if the HACs were
not present. (We refer readers to section II.D. of the FY 2008 IPPS
final rule with comment period for a discussion of DRG reforms (72 FR
47141).)
b. HAC Selection
Beginning in FY 2007, we have set forth proposals, and solicited
and responded to public comments, to implement section 1886(d)(4)(D) of
the Act through the IPPS annual rulemaking process. For specific
policies addressed in each rulemaking cycle, we direct readers to the
following publications: The FY 2007 IPPS proposed rule (71 FR 24100)
and final rule (71 FR 48051 through 48053); the FY 2008 IPPS proposed
rule (72 FR 24716 through 24726) and final rule with comment period (72
FR 47200 through 47218); the FY 2009 IPPS proposed rule (73 FR 23547)
and final rule (73 FR 48471); the FY 2010 IPPS/RY 2010 LTCH PPS
proposed rule (74 FR 24106) and final rule (74 FR 43782); and the FY
2011 IPPS/LTCH PPS proposed rule (75 FR 23880) and final rule (75 FR
50080). A complete list of the 10 current categories of HACs is
included in section II.F.2. of this preamble.
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50080 through
50101), we did not add any categories of additional HACs or make any
changes to policies already established under the authority of section
1886(d)(4)(D) of the Act.
c. Collaborative Process
In establishing the HAC payment policy under section 1886(d)(4)(D)
of the Act, our experts have worked closely with public health and
infectious disease professionals from across the Department of Health
and Human Services, including CDC, the Agency for Healthcare Research
and Quality (AHRQ), and the Office of Public Health and Science (OPHS),
to identify the candidate preventable HACs, review comments, and select
HACs. CMS and CDC also have collaborated on the process for hospitals
to submit a POA indicator for each diagnosis listed on IPPS hospital
Medicare claims and on the payment implications of the various POA
reporting options. In addition, as discussed below, we have used
rulemaking and Listening Sessions to obtain public input.
d. Application of HAC Payment Policy to MS-DRG Classifications
As described above, in certain cases, application of the HAC
payment policy provisions can result in MS-DRG reassignment to a lower
paying MS-DRG. The following diagram portrays the logic of the HAC
payment policy provision as adopted in the FY 2008 IPPS final rule with
comment period (72 FR 47200) and in the FY 2009 IPPS final rule (73 FR
48471):
[[Page 51506]]
[GRAPHIC] [TIFF OMITTED] TR18AU11.002
e. Public Input Regarding Selected and Potential Candidate HACs
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50080 through
50101), we did not add or remove categories of HACs, nor did we make
any changes to previously established policies. However, we continue to
encourage public dialogue about refinement of the HAC list.
Given the timeliness of the HAC discussion, particularly when
considered within the context of recent legislative health care reform
initiatives, we remain eager to engage in an ongoing public dialogue
about the various aspects of this policy. We plan to continue to
include updates and findings from the Research Triangle Institute,
International (RTI) evaluation on CMS' Hospital-Acquired Conditions and
Present on Admission Indicator Web site available at: http://www.cms.hhs.gov/HospitalAcqCond/.
f. POA Indicator Reporting
Collection of POA indicator data is necessary to identify which
conditions were acquired during hospitalization for the HAC payment
provision as well as for broader public health uses of Medicare data.
In the FY 2011 IPPS/LTCH PPS proposed rule (75 FR 23381) (and as noted
in the FY 2011 IPPS/LTCH PPS final rule (75 FR 50081)), we listed the
instructions and change requests that were issued to IPPS hospitals and
also to non-IPPS hospitals regarding the submission of POA indicator
data for all diagnosis codes on Medicare claims and the processing of
non-PPS claims We also indicated that specific instructions on how to
select the correct POA indicator for each diagnosis code were included
in the ICD-9-CM Official Guidelines for Coding and Reporting, available
on the CDC Web site at: http://www.cdc.gov/nchs/data/icd9/icdguide10.pdf. We reiterate that additional information regarding POA
indicator reporting and application of the POA reporting options is
available on the CMS Web site at: http://www.cms.gov/HospitalAcqCond/.
In preparation for the transition to the ICD-10-CM/PCS code set
effective October 1, 2013, further information regarding the use of the
POA indictor with the ICD-10-CM/PCS classification as it pertains to
the HAC policy will be discussed in future rulemaking. In the meantime,
we encourage readers to review the educational materials and draft code
sets currently available for ICD-10-CM/PCS at the CMS Web site at:
http://www.cms.gov/ICD10/. In addition, the draft ICD-10-CM/PCS coding
guidelines can be viewed at the CDC Web site at: http://www.cdc.gov/nchs/data/icd9/10cmguidelines2011.
Historically, we have not provided coding advice. Rather, we
collaborate with the American Hospital Association (AHA) through the
Coding Clinic for ICD-9-CM. We will continue to collaborate with the
AHA to promote the Coding Clinic for ICD-9-CM as the source for coding
advice about the POA indicator.
As discussed in previous IPPS proposed and final rules, there are
five POA indicator reporting options, as defined by the ICD-9-CM
Official Guidelines for Coding and Reporting:
------------------------------------------------------------------------
Indicator Descriptor
------------------------------------------------------------------------
Y............................. Indicates that the condition was present
on admission.
W............................. Affirms that the hospital has determined
that, based on data and clinical
judgment, it is not possible to
document when the onset of the
condition occurred.
N............................. Indicates that the condition was not
present on admission.
U............................. Indicates that the documentation is
insufficient to determine if the
condition was present at the time of
admission.
1............................. Signifies exemption from POA reporting.
CMS established this code as a
workaround to blank reporting on the
electronic 4010A1. A list of exempt ICD-
9-CM diagnosis codes is available in
the ICD-9-CM Official Guidelines for
Coding and Reporting.
------------------------------------------------------------------------
In the FY 2009 IPPS final rule (73 FR 48486 through 48487), we
adopted final payment policies to: (1) pay the CC/MCC MS-DRGs for those
HACs coded with ``Y'' and ``W'' indicators; and (2) not pay the CC/MCC
MS-DRGs for those
[[Page 51507]]
HACs coded with ``N'' and ``U'' indicators.
Beginning on or after January 1, 2011, hospitals are required to
begin reporting POA indicators using the 5010 electronic transmittal
standards format. The 5010 format removes the need to report a POA
indicator of ``1'' for codes that are exempt from POA reporting.
However, for claims that continue to be submitted using the 4010
electronic transmittal standards format, the POA indicator of ``1'' is
still necessary because of reporting restrictions from the use of the
4010 electronic transmittal standards format.
Hospitals that began reporting with the 5010 format on and after
January 1, 2011, can no longer report a POA indicator of ``1'' for POA
exempt codes. The POA field should instead be left blank for codes
exempt from POA reporting. We have issued CMS instructions on this
reporting change as a One-Time Notification, Pub. No. 100-20,
Transmittal No. 756, Change Request 7024, effective on August 13, 2010.
These instructions, entitled ``5010 Implementation-Changes to Present
on Admission (POA) Indicator `1' and the K3 Segment,'' can be located
at the following link on the CMS Web site: http://www.cms.gov/manuals/downloads/Pub100_20.pdf.
We are continuing our efforts to clarify instructions regarding use
of the POA indicator. As discussed in the FY 2011 IPPS/LTCH PPS final
rule (75 FR 50088), we received public comments in response to the FY
2011 IPPS/LTCH PPS proposed rule that expressed concern about the
accuracy of reporting of POA indicators for HACs related to
intracranial injury with loss of consciousness. The codes for loss of
consciousness are listed in the Falls and Trauma HAC category, within
the ``Intracranial Injury'' subcategory. Because loss of consciousness
is a component of intracranial injuries rather than a separate
condition, we agreed that the POA guidelines that instructed coders to
assign an ``N'' indicator if any part of the combination code was not
present on admission did not apply to the loss of consciousness codes.
As a member of the Editorial Advisory Board for the Coding Clinic for
ICD-9-CM, we worked with the American Hospital Association (AHA),
American Health Information Management Association (AHIMA), and CDC to
provide additional clarification on how these conditions should be
reported. Additional guidance on how these cases should be reported can
be found in AHA's Coding Clinic for ICD-9-CM, 2nd Quarter 2010,
``Frequently Asked POA Questions'' section. That publication clarified
the POA reporting for patients in whom a single code captures the fact
that the patient was admitted as a result of a head injury and then
subsequently lost consciousness after the admission. For these cases,
we clarified that the POA indicator assigned should be ``Y,''
indicating that the head injury and resulting loss of consciousness
occurred prior to (and was present on) admission.
We expect that this clarification will lead to greater consistency
and accuracy in POA indicator reporting for these conditions. We look
forward to continuing our efforts as part of the AHA's Editorial
Advisory Board for Coding Clinic for ICD-9-CM to provide guidance on
accuracy of coding and the reporting of POA indicators. Hospitals look
to this publication to provide detailed guidance on ICD-9-CM coding and
POA reporting. We encourage hospitals to send any other questions about
ICD-9-CM codes or POA indicator selection to the AHA so that the
Editorial Advisory Board can continue its role of providing instruction
on the accurate selection and reporting of both ICD-9-CM codes and POA
indicators.
2. Additions and Revisions to the HAC Policy for FY 2012
a. Contrast-Induced Acute Kidney Injury
In the FY 2012 IPPS/LTCH PPS proposed rule (76 FR 25813 and 25814),
we discussed our analysis for a proposed new condition as a possible
candidate for selection for FY 2012 under section 1886(d)(4)(D) of the
Act. As described in more detail in section II.F.1.a. of this preamble,
each HAC must be: (1) High cost, high volume, or both; (2) assigned to
a higher paying MS-DRG when present as a secondary diagnosis (that is,
conditions under the MS-DRG system that are CCs or MCCs); and (3) could
reasonably have been prevented through the application of evidence-
based guidelines. We also discussed other considerations relating to
the selection of a HAC, including any administrative or operational
issues associated with a proposed condition. For example, the condition
may only be able to be identified by multiple codes, thereby requiring
the development of special GROUPER logic to also exclude similar or
related ICD-9-CM codes from being classified as a CC or an MCC.
Similarly, a condition acquired during a hospital stay may arise from
another condition that the patient had prior to admission, making it
difficult to determine whether the condition was reasonably
preventable. We invited public comment on clinical, coding, and
prevention issues on our proposal to add contrast-induced acute kidney
injury as a condition subject to the HAC payment provision for FY 2012
(for discharges occurring on or after October 1, 2011).
Contrast-induced acute kidney injury is a significant complication
of the use of iodinated contrast media and accounts for a large number
of cases of hospital-acquired acute kidney injury cases. A published
study has shown that renal failure associated with contrast
administration is correlated with up to 11 percent of cases of renal
failure that occur in hospitals (Nash, K., Hafeez, A., et al:
``Hospital-Acquired Renal Insufficiency,'' American Journal on Kidney
Disease, 2002, Vol. 39, No. 5, pp. 930-936). Patients who experience
acute kidney injury have an increased risk of inhospital mortality even
after adjustments for disease comorbidities (McCullough, J.:
``Contrast-Induced Acute Kidney Injury,'' Journal of the American
College of Cardiology, 2008, Vol. 51, No. 15, pp. 1419-1428). Data
suggest that the risk for mortality extends beyond the period of
hospitalization, resulting in 1-year and 5-year mortality rates
significantly higher than those patients who have not developed acute
kidney injury. In addition, contrast-induced acute kidney injury is
associated with an increased incidence of myocardial infarction,
bleeding requiring transfusion, and prolonged hospital stays
(McCullough, J.: American Journal of Medicine, 1997, Vol. 103, pp. 368-
375). We note that ``acute kidney injury'' is a new terminology
endorsed by the National Kidney Foundation to replace ``acute renal
failure.''
There is not a unique code that identifies kidney injury. However,
kidney injury can be identified as a subset of discharges with ICD-9-CM
diagnosis code 584.9 (Acute kidney failure, unspecified). As we
discussed in the FY 2012 IPPS/LTCH PPS proposed rule, our clinical
advisors believe that diagnosis code 584.9, in combination with the
associated procedure codes listed below, can accurately identify
contrast-induced acute kidney injury:
88.40 (Arteriography using contrast material, unspecified
site)
88.41 (Arteriography of cerebral arteries)
88.42 (Aortography)
88.43 (Arteriography of pulmonary arteries)
88.44 (Arteriography of other intrathoracic vessels)
88.45 (Arteriography of renal arteries)
88.46 (Arteriography of placenta)
88.47 (Arteriography of other intra-abdominal arteries)
[[Page 51508]]
88.48 (Arteriography of femoral and other lower extremity
arteries)
88.49 (Arteriography of other specified sites)
88.50 (Angiocardiography, not otherwise specified)
88.51 (Angiocardiography of venae cavae)
88.52 (Angiocardiography of right heart structures)
88.53 (Angiocardiography of left heart structures)
88.54 (Combined right and left heart angiocardiography)
88.55 (Coronary arteriography using a single catheter)
88.56 (Coronary arteriography using two catheters)
88.57 (Other and unspecified coronary arteriography)
88.58 (Negative-contrast cardiac roentgenography)
88.59 (Intra-operative coronary fluorescence vascular
angiography)
88.60 (Phlebography using contrast material, unspecified site)
88.61 (Phlebography of veins of head and neck using contrast
material)
88.62 (Phlebography of pulmonary veins using contrast materal)
88.63 (Phlebography of other intrathoracic veins using
contrast material)
88.64 (Phlebography of the portal venous system using contrast
material)
88.65 (Phlebography of other intra-abdominal veins using
contrast material)
88.66 (Phlebography of femoral and other lower extremity veins
using contrast material)
88.67 (Phlebography of other specified sites using contrast
material)
87.71 (C.A.T. of kidney)
87.72 (Other nephrotomogram)
87.73 (Intravenous pyelogram)
87.74 (Retrograde pyelogram)
87.75 (Percutaneous pyelogram)
We proposed to identify contrast-induced acute kidney injury with
diagnosis code 584.9 in combination with one or more of the above
associated procedure codes.
We also considered identifying contrast-induced acute kidney injury
through the use of external injury codes, or E-codes. Code E947.8
(Other drugs and medicinal substances) has an inclusion term ``Contrast
media used for diagnostic x-ray procedures'' to identify the use of
contrast. However, as we noted in the proposed rule, we do not
currently require the reporting of E-codes for the HAC payment
provisions under the IPPS. Therefore, we were unable to rely on the
identification of contrast-induced acute kidney injury through E-codes
on Medicare IPPS HACs claims.
Section 1886(d)(4)(D) of the Act requires that a HAC be a condition
that is ``high cost, high volume, or both.'' In FY 2009, there were
38,324 inpatient discharges coded with acute renal failure as specified
by ICD-9-CM diagnosis code 584.9 reported as not present on admission
(POA status = N) when reported with one of the above procedure codes
submitted through Medicare claims. The cases had an average charge of
$29,122 for the entire hospital stay. Studies suggest the additional
average cost per day for a patient who has acquired contrast-induced
acute kidney injury is $2,654. Other data report patients stays
increases by 3.75 days once they have acquired the diagnosis
(Subramanian, S.: ``Economic Burden of Contrast-Induced Nephropathy:
Implications for Prevention Strategies,'' Journal of Medical Economics,
2007, Vol. 10, pp. 119-134).
There are widely recognized guidelines for the prevention of acute
kidney injury that address the prevention of contrast-induced acute
kidney injury, and we believe the condition is reasonably preventable.
One of these guidelines can be found at: http://www.renal.org/Clinical/GuidelinesSection/AcuteKidneyInjury.aspx.
The condition of contrast-induced acute kidney injury as specified
in our proposal is a CC under the MS-DRGs.
We indicated in the proposed rule that we had not identified any
additional administrative or operational difficulties with proposing
this condition as a HAC. We invited public comment on whether contrast-
induced acute kidney injury meets the requirements set forth under
section 1886(d)(4)(D) of the Act, as well as other coding and
prevention issues associated with our proposal to add this injury as a
condition subject to the HAC payment provision for FY 2012 (for
discharges occurring on or after October 1, 2011). We also indicated
that we were particularly interested in receiving comments on the
degree to which contrast-induced acute kidney injury is reasonably
preventable through the application of evidence-based guidelines.
Comment: One commenter supported CMS' proposal to add contrast-
induced acute kidney injury as a HAC under section 1886(d)(4)(D) of the
Act. The commenter applauded the inclusion of contrast-induced acute
kidney injury to the HAC policy for FY 2012, and encouraged CMS to
continue to expand and refine the HACs and categories.
Response: We appreciate the commenter's support.
Comment: Many commenters discussed their concerns regarding the
specificity and sensitivity of the ICD-9-CM codes proposed to identify
the proposed new contrast-induced acute kidney injury HAC. The
commenters believed that these codes would not solely capture contrast-
induced acute kidney injury and would capture other conditions as well.
The commenters expressed concern about the specificity of the current
ICD-9-CM code 584.9 in reliably identifying cases of acute kidney
injury that occurred due to a specific diagnosis instead of acute
kidney injury that is believed to occur secondary to being correlated
with exposure to contrast. The commenter stated that, for example, a
patient admitted to a hospital could experience drug-induced kidney
injury that has resolved; later during that hospital stay, the patient
has a subsequent angiographic procedure. Under our proposed
methodology, the commenter added, this patient would be erroneously
identified as having contrast-induced acute kidney injury.
Some commenters suggested that CMS use E-codes, which identify
injuries, while others did not support the use of E-codes because they
are not consistently coded for Medicare billing purposes. Commenters
further noted that the list of ICD-9-CM procedure codes proposed to
assist in identifying the use of contrast as the reason for the acute
kidney injury occurring are often not reported on hospital claims. The
commenters explained that most of the codes do not represent procedures
affecting payment, are not required, and, therefore, are not reported.
Other commenters recommended waiting to finalize this proposed
candidate condition until the ICD-10 code set is implemented. The
commenters suggested that a unique code to identify and describe
contrast-induced acute kidney injury could be proposed in ICD-10, and
this would eliminate the coding limitations that currently exist for
this condition in ICD-9-CM.
Response: We acknowledge the commenters' concerns regarding the
current ICD-9-CM coding issues surrounding contrast-induced acute
kidney injury, and that our proposal could inadvertently include claims
for beneficiaries who experience acute kidney injury that may not be
contrast-induced. We note that, as discussed in the FY 2008 IPPS final
rule with comment period (72 FR 47216), under 42 CFR 412.60(d), a
hospital has 60 days after the date of the notice of the initial
[[Page 51509]]
assignment of a discharge to a DRG to request a review of that
assignment. The hospital may submit additional information as a part of
its request. A hospital that believes a discharge was assigned to the
incorrect DRG as a result of application of the payment adjustment for
HACs may request review of the DRG assignment by its fiscal
intermediary or MAC. However, we also recognize that it is important to
be as precise as possible in specifying which codes to use to identify
a HAC, and that a lack of precision could increase hospitals'
administrative burden in pursuing these appeals.
In addition, we recognize that E-codes do capture injuries and
could offer more precision in identifying contrast-induced acute kidney
injury than our proposal. We also agree with the commenters who pointed
out that E-codes are currently not required for Medicare billing
purposes and, therefore, are inconsistently reported on claims. We note
further that because these codes are not required for Medicare IPPS
payment purposes, MS-DRG assignments do not currently take E-codes into
account.
We also appreciate the comments that pointed out that the procedure
codes identified in our proposal are often not reported. We note that
commenters asserted that these codes were not reported because they did
not affect payment. We are concerned that the potential for reduced
payment would create a further disincentive to include these procedure
codes on Medicare claims. As we stated earlier, we recognize that it is
important to be as precise as possible in the interest of payment
accuracy in specifying which codes to use to identify a HAC.
We also agree that ICD-10 will offer a greater degree of
specificity. Currently, no code exists within ICD-10 that would
exclusively capture contrast-induced acute kidney injury. We note that,
as discussed in the FY 2012 IPPS/LTCH proposed rule (76 FR 25843), and
in section II.G.13.b. of this final rule, a partial code freeze was
discussed at multiple meetings of the ICD-9-CM Coordination and
Maintenance Committee, and public comment was actively solicited. At
the September 15-16, 2010 meeting, an announcement was made that the
ICD-9-CM Coordination and Maintenance Committee will implement a
partial freeze of the ICD-9-CM and ICD-10 (ICD-10-CM and ICD-10-PCS)
codes prior to the implementation of ICD-10 on October 1, 2013. There
was considerable support for this partial freeze. The partial freeze
will be implemented as follows:
The last regular, annual updates to both ICD-9-CM and ICD-
10 code sets will be made on October 1, 2011.
On October 1, 2012, there will be only limited code
updates to both the ICD-9-CM and ICD-10 code sets to capture new
technologies and diseases as required by section 503(a) of Public Law
108-173.
On October 1, 2013, there will be only limited code
updates to ICD-10 code sets to capture new technologies and diagnoses
as required by section 503(a) of Public Law 108-173. There will be no
updates to ICD-9-CM, as it will no longer be used for reporting.
On October 1, 2014, regular updates to ICD-10 will begin.
The ICD-9-CM Coordination and Maintenance Committee will continue
to meet twice a year during the partial freeze. At these meetings, the
public will be asked to comment on whether or not requests for new
diagnosis or procedure codes should be created based on the criteria of
the need to capture a new technology or disease. Any code requests that
do not meet the criteria will be evaluated for implementation within
ICD-10 on and after October 1, 2014, once the partial freeze has ended.
In summary, we agree with the commenters' recommendations regarding
coding and are deferring decision making regarding the inclusion of
contrast-induced acute kidney injury as a HAC until such a time when
improved coding is available.
Comment: Several commenters submitted comments pertaining to the
sufficiency or strength of the evidence-based guidelines in terms of
providing information or direction that would lead to the prevention of
contrast-induced acute kidney injury 100 percent of the time. The
commenters stated that evidence-based guidelines are based on varying
levels of evidence, from expert consensus based on opinion (the
``weakest'' level) to expert consensus based on data produced in
randomized controlled trials (the ``strongest'' level). According to
the commenters, in many cases, the guidelines do not address all
patient populations. Commenters also stated that current evidence-based
guidelines for decreasing the incidence of contrast-induced acute
kidney injury are limited. The commenters also noted that new
guidelines addressing the topic of contrast-induced acute kidney injury
are being published in late summer of 2011 by an international
organization, Kidney Disease Improving Global Outcomes (KDIGO), after a
multiyear development process. They noted that CMS should take these
guidelines into consideration when they become available.
Response: We acknowledge that different types of evidence-based
guidelines exist. However, we believe that the inclusion of contrast-
induced acute kidney injury in the current evidence-based guidelines
for Acute Kidney Injury supports the inclusion of contrast-induced
acute kidney injury as a condition on the HAC list. We agree that any
new evidence-based guidelines for contrast-induced acute kidney injury
should be considered when they become available.
Comment: A few commenters expressed concern about the proposal
potentially creating an incentive for practitioners to avoid necessary
contrast use in patients with high risk of acute kidney disease.
Response: We acknowledge and are sensitive to the theoretical
possibility of patient access to care being restricted. We are unaware
of significant data supporting this assertion, but we will continue to
monitor the situation for potential unintended consequences with regard
to this concern.
Comment: Some commenters recommended that CMS not reduce payment
for this condition, but to instead develop a quality measure that would
track it. The commenters noted that such a measure could track whether
the appropriate evidence-based steps to prevent contrast-induced acute
kidney injury have been performed and documented.
Response: We appreciate the commenters' recommendation. We note
that we did not propose to develop a quality measure for contrast-
induced acute kidney injury in the proposed rule. Thus, we consider
this comment to be outside of the scope of the provisions discussed in
the proposed rule. However, this subject area represents an area of
continued interest and opportunity for the agency, and we will take
this recommendation into consideration during the development of future
rulemaking.
In conclusion, after consideration of the public comments we
received, we are deferring the decision making on the addition of
contrast-induced acute kidney injury as a HAC until future rulemaking,
and such a time when improved coding is available for the reasons
described above. We note that the reduction of contrast-induced acute
kidney injury represents an area of continued interest for the agency,
and we believe that substantial opportunity exists for hospitals to
improve quality in this area.
[[Page 51510]]
b. Additional New Diagnosis Codes for Existing HACs
As we discussed in the FY 2012 IPPS/LTCH PPS proposed rule (76 FR
25814), as changes to diagnosis codes and new diagnosis codes are
proposed and finalized for the list of CCs and MCCs, we modify the list
of selected HACs to reflect these changes. We included in Table 6A of
the proposed rule (which was made available via the Internet) the five
new ICD-9-CM diagnosis codes that we proposed to add to three of the
current HAC categories. We proposed to add two new codes for the Falls
and Trauma HAC category, two new codes for the Surgical Site Infection
(SSI) Following Certain Bariatric Procedures HAC category, and one new
code for the Deep Vein Thrombosis and Pulmonary Embolism (DVT/PE)
Following Certain Orthopedic Procedures HAC category. The two new
diagnosis codes that we proposed to add to the Falls and Trauma HAC
category were code 808.44 (Multiple closed pelvic fractures without
disruption of pelvic circle) and code 808.54 (Multiple open pelvic
fractures without disruption of pelvic circle). These codes fall within
the range of the fracture code subcategory (800 through 829). The two
new diagnosis codes that we proposed to add to the Surgical Site
Infection (SSI) Following Certain Bariatric Procedures HAC category
were code 539.01 (Infection due to gastric band procedure) and code
539.81 (Infection due to other bariatric procedure). We stated our
belief that these diagnosis codes are appropriate for inclusion in the
existing category when reported as a secondary diagnosis with the
specified principal diagnosis code of morbid obesity (code 278.01) and
one of the designated bariatric procedure codes (code 44.38, 44.39, or
44.95). Lastly, the one new diagnosis code that we proposed to add to
the Deep Vein Thrombosis and Pulmonary Embolism (DVT/PE) Following
Certain Orthopedic Procedures HAC category was code 415.13 (Saddle
embolus of pulmonary artery). Diagnosis code 415.13 would be applicable
when reported along with one of the following procedures codes
describing certain orthopedic procedures: 00.85 through 00.87, 81.51,
81.52, or 81.54. Shown in the table below are these five new diagnosis
codes with their corresponding descriptions and their proposed CC/MCC
designations.
------------------------------------------------------------------------
Proposed CC/MCC
ICD-9-CM code Code descriptor designation
------------------------------------------------------------------------
539.01........................ Infection due to CC
gastric band
procedure.
539.81........................ Infection due to CC
other bariatric
procedure.
415.13........................ Saddle embolus of MCC
pulmonary artery.
808.44........................ Multiple closed CC
pelvic fractures
without disruption
of pelvic circle.
808.54........................ Multiple open pelvic MCC
fractures without
disruption of pelvic
circle.
------------------------------------------------------------------------
We invited public comments on the proposed adoption of these five
new ICD-9-CM diagnosis codes as CC/MCCs that are listed above, which,
if finalized, would be added to the current Falls and Trauma HAC
category, Surgical Site Infection (SSI) Following Certain Bariatric
Procedures HAC category and Deep Vein Thrombosis and Pulmonary Embolism
(DVT/PE) Following Certain Orthopedic Procedures HAC category and would
be subject to the HAC payment provision for FY 2012.
Comment: Several commenters supported CMS' proposal to adopt the
five new ICD-9-CM diagnosis codes with their proposed CC/MCC
designations for addition to the current Falls and Trauma HAC category,
Surgical Site Infection (SSI) Following Certain Bariatric Procedures
HAC category, and Deep Vein Thrombosis and Pulmonary Embolism (DVT/PE)
Following Certain Orthopedic Procedures HAC category and to subject
them to the HAC payment provision for FY 2012.
Response: We appreciate the commenters' support.
Comment: One commenter expressed concern regarding the
appropriateness of adding ICD-9-CM diagnosis code 415.13 as a condition
that, when reported along with the designated procedure codes
describing certain orthopedic procedures (00.85 through 00.87, 81.51,
81.52, or 81.54) in the Deep Vein Thrombosis and Pulmonary Embolism
(DVT/PE) Following Certain Orthopedic Procedures HAC category, be
subject to the HAC payment provision. The commenter stated that HAC
selection should be based on conditions considered to be reasonably
preventable with adherence to evidence-based practice guidelines. The
commenter further believed that a saddle embolus of the pulmonary
artery, when reported with the cited orthopedic procedure codes, is not
a condition that is ``reasonably preventable'' and that patients
undergoing total knee replacement and total hip replacement in the
Medicare population are at the highest risk for developing a DVT/PE.
The commenter also stated that the current structure of the MS-DRG
system does not specifically risk-adjust for these conditions in the
MS-DRGs related to primary total hip replacement (code 81.51) or
primary total knee replacement (code 81.54). The commenter believed
that risk adjustment is an indispensible component of an equitable HAC
policy. The commenter suggested that CMS account for the patient-
specific risk factors that affect preventability and reported that many
hospitalized patients have comorbidities and other patient
characteristics that put them at an increased risk of complications.
The commenter suggested that CMS take these factors into account in
creating a policy that is reasonable and equitable, in order to
minimize incentives for limiting access for patients who are at higher
risk for complications.
This same commenter also expressed support of CMS' efforts to
encourage the adoption of evidence-based treatment guidelines that
could improve the quality of care for patients. However, while the
commenter noted that evidence-based guidelines can reduce events, the
commenter asserted that CMS selected one of the patient populations at
highest risk for DVT/PE, diverging from the concept of ``reasonably
preventable.''
Response: We appreciate the commenter's detailed comments on the
proposal to add diagnosis code 415.13 as a condition that, when
reported along with the designated procedure codes described above, is
subject to the HAC payment provision. In the FY 2008 IPPS final rule
with comment period (72 FR 47200 through 47218), we discussed the
evidence based guidelines regarding DVT/PE and agreed with commenters
that this is reasonably preventable. In the FY 2009 IPPS final rule (73
FR 48481), we addressed commenters' concerns regarding the
preventability of DVT/PE and noted that the statute does not require
that a condition be ``always preventable''' in order to qualify as an
[[Page 51511]]
HAC, but rather that it be ``reasonably preventable,'' which
necessarily implies something less than 100 percent.
With regard to the commenter's assertion that risk adjustment is an
indispensible component of an equitable HAC policy, we refer readers to
the FY 2009 IPPS final rule and the FY 2010 IPPS/RY 2010 LTCH PPS final
rule. In the FY 2009 IPPS final rule (73 FR 48487 through 48488), we
discussed risk adjustment of payments related to HACs. We addressed
this issue again in the FY 2010 IPPS/RY 2010 LTCH PPS final rule (74 FR
43785), where we noted that a risk adjustment methodology may lead to
greater precision of HAC payment determinations. As part of the RTI
evaluation of the HAC-POA program, the concept of risk adjustment
continues to be an important area of interest and study for the agency.
We will consider the results of RTI's evaluation when it is complete
and, if appropriate, make a proposal and solicit public comment in
future rulemaking.
After consideration of the public comments we received, we are
finalizing the adoption of the five new ICD-9-CM diagnosis codes
described above as CC/MCCs to be added to their respective HAC
categories as proposed. Therefore, effective October 1, 2011 (FY 2012),
procedure codes 808.44 and 808.54 describing multiple pelvic fractures
will be added to the Falls and Trauma HAC category, procedure codes
539.01 and 539.81 describing infections related to gastric procedures
will be added to the Surgical Site Infection (SSI) Following Certain
Bariatric Procedures HAC category, and procedure code 415.13 describing
a type of pulmonary embolus will be added to the Deep Vein Thrombosis
and Pulmonary Embolism (DVT/PE) Following Certain Orthopedic Procedures
HAC category. All of these conditions will be subject to the HAC
payment provision for FY 2012.
c. Revision to HAC Subcategory Title
After publication of the FY 2011 IPPS/LTCH PPS final rule, we
received a comment stating that the subcategory title ``Electric
Shock'' that is included in the Falls and Trauma HAC category was
misleading. The commenter stated that this subcategory title did not
accurately describe the CC/MCC ICD-9-CM diagnoses codes (991 through
994) contained within this subcategory. The commenter requested that
CMS develop a new title that would more accurately describe this group
of codes.
In the FY 2012 IPPS/LTCH PPS proposed rule (76 FR 25814), we stated
that we agreed with the commenter that the HAC subcategory title
``Electric Shock'' is potentially misleading because the codes included
within these ranges contain a variety of injuries, including the
following:
Category 991 (Effects of Reduced Temperature)
Category 992 (Effects of Heat and Light)
Category 993 (Effects of Air Pressure)
Category 994 (Effects of Other External Causes)
We proposed to change the title of this HAC subcategory from
``Electric Shock'' to ``Other Injuries'' because it includes a variety
of injury codes. The subcategory will continue to include the codes
within the 991 through 994 code ranges appearing on the CC/MCC list. We
did not propose any changes to the list of codes in this subcategory;
we simply proposed to rename the subcategory title. We invited public
comments on the proposed title change to the HAC subcategory from
``Electric Shock'' to ``Other Injuries'' for FY 2012.
Comment: Several commenters supported CMS' proposal to change the
title of this HAC subcategory from ``Electric Shock'' to ``Other
Injuries'' because it includes a variety of injury codes. The
commenters stated that this title change would better describe the
conditions included in the range of codes.
Response: We appreciate the commenters' support.
After consideration of the public comments we received, we are
finalizing our proposal to change the title of the HAC subcategory from
``Electric Shock'' to ``Other Injuries.'' The subcategory will continue
to include the codes within the 991 through 994 code ranges appearing
on the CC/MCC list. In addition, we are not making any changes to the
list of codes in this subcategory; the subcategory title will simply be
renamed effective FY 2012.
d. Conclusion
In the FY 2012 IPPS/LTCH PPS proposed rule, we listed the current
HAC categories and the ICD-9-CM codes that identify the conditions and
have been finalized through FY 2011. For FY 2012, we proposed that
these conditions continue to be subject to the HAC payment provision,
along with the creation of a new HAC category for contrast-induced
acute kidney injury. (We note that, as discussed in section II.F.2.a.
of the preamble of the proposed rule and this final rule, we are not
adopting our proposal to add a new HAC category for contrast-induced
acute kidney injury for FY 2012.) In addition, we proposed to add five
new ICD-9-CM diagnosis codes and to revise the title of the ``Electric
Shock'' subcategory in the Falls and Trauma HAC category.
Comment: Several commenters supported maintaining the current HAC
categories and the ICD-9-CM codes that identify those conditions. These
commenters agreed that the conditions should continue to be subject to
the HAC payment provision for FY 2012.
Response: We appreciate the commenters' support.
After consideration of the public comments we received, we are
adopting the following list of HAC categories and the ICD-9-CM codes
that identify the conditions that have been finalized through FY 2011
and that we are finalizing in this final rule for FY 2012.
------------------------------------------------------------------------
HAC CC/MCC (ICD-9-CM Code)
------------------------------------------------------------------------
Foreign Object Retained After Surgery.. 998.4 (CC)
998.7 (CC)
Air Embolism........................... 999.1 (MCC)
Blood Incompatibility.................. 999.60 (CC)
999.61 (CC)
999.62 (CC)
999.63 (CC)
999.69 (CC)
Pressure Ulcer Stages III & IV......... 707.23 (MCC)
707.24 (MCC)
Falls and Trauma: Codes within these ranges on
the CC/MCC list:
--Fracture......................... 800-829
--Dislocation...................... 830-839
[[Page 51512]]
--Intracranial Injury.............. 850-854
--Crushing Injury.................. 925-929
--Burn............................. 940-949
--Other Injuries................... 991-994
Catheter-Associated Urinary Tract 996.64 (CC)
Infection (UTI). Also excludes the following
from acting as a CC/MCC:
112.2 (CC)
590.10 (CC)
590.11 (MCC)
590.2 (MCC)
590.3 (CC)
590.80 (CC)
590.81 (CC)
595.0 (CC)
597.0 (CC)
599.0 (CC)
Vascular Catheter-Associated Infection. 999.31 (CC)
Manifestations of Poor Glycemic Control 250.10-250.13 (MCC)
250.20-250.23 (MCC)
251.0 (CC)
249.10-249.11 (MCC)
249.20-249.21 (MCC)
------------------------------------------------------------------------
Surgical Site Infections
------------------------------------------------------------------------
Surgical Site Infection, Mediastinitis, 519.2 (MCC)
Following Coronary Artery Bypass Graft And one of the following
(CABG). procedure codes:
36.10-36.19
Surgical Site Infection Following 996.67 (CC)
Certain Orthopedic Procedures. 998.59 (CC)
And one of the following
procedure codes: 81.01-81.08,
81.23-81.24, 81.31-81.38,
81.83, 81.85
Surgical Site Infection Following Principal Diagnosis--278.01
Bariatric Surgery for Obesity. 539.01 (CC)
539.81 (CC)
998.59 (CC)
And one of the following
procedure codes: 44.38, 44.39,
or 44.95
Deep Vein Thrombosis and Pulmonary 415.11 (MCC)
Embolism Following Certain Orthopedic 415.13 (MCC)
Procedures. 415.19 (MCC)
453.40-453.42 (CC)
And one of the following
procedure codes: 00.85-00.87,
81.51-81.52, or 81.54
------------------------------------------------------------------------
We refer readers to section II.F.6. of the FY 2008 IPPS final rule
with comment period (72 FR 47202 through 47218) and to section II.F.7.
of the FY 2009 IPPS final rule (73 FR 48474 through 48486) for detailed
analyses supporting the selection of each of the HACs selected through
FY 2012.
3. RTI Program Evaluation Summary
a. Background
On September 30, 2009, a contract was awarded to Research Triangle
Institute, International (RTI) to evaluate the impact of the Hospital-
Acquired Condition-Present on Admission (HAC-POA) provisions on the
changes in the incidence of selected conditions, effects on Medicare
payments, impacts on coding accuracy, unintended consequences, and
infection and event rates. This is an intra-agency project with funding
and technical support coming from CMS, OPHS, AHRQ, and CDC. The
evaluation will also examine the implementation of the program and
evaluate additional conditions for future selection.
RTI's evaluation of the HAC-POA provisions is divided into several
parts. In the FY 2011 IPPS/LTCH PPS final rule (50085 through 50101),
we summarized the analyses by RTI that had been completed at that time.
These RTI analyses of POA indicator reporting, frequencies and net
savings associated with current HACs, and frequencies of previously
considered candidate HACs reflected MedPAR claims from October 2008
through September 2009.
b. FY 2009 Data Analysis
As we describe in section II.F.1.f. of this preamble, we have
provided instructions to IPPS hospitals and non-IPPS hospitals
regarding the submission of POA indicator data for all diagnosis codes
on Medicare claims and the processing of non-PPS claims (75 FR 23381)
and note that specific instructions on how to select the correct POA
indicator for each diagnosis code were included in the ICD-9-CM
Official Guidelines for Coding and Reporting, available on the CDC Web
site at: http://www.cdc.gov/nchs/data/icd9/icdguide10.pdf. After
publication of the FY 2011 IPPS/LTCH PPS final rule, we identified a
discrepancy between the claims data that hospitals submitted and the
CMS data file used to calculate the HAC measures. Specifically, this
error led to incorrect HAC assignments in cases where a hospital
reported an external cause of injury (E-code). Since then, we have
corrected this error in the data file.
As a result, the RTI analysis of the HAC-POA program that was
conducted using FY 2009 claims data was updated using the corrected
data file. The corrected data do not appear to have a
[[Page 51513]]
material impact on our previous findings for FY 2009. Revised data
tables were made publicly available on the CMS Web site at http://www.cms.gov/HospitalAcqCond/01_Overview.asp and the RTI Web site at
http://www.rti.org/reports/cms/ after publication of the FY 2012 IPPS/
LTCH PPS proposed rule.
c. FY 2010 Data Analysis
RTI's analysis of the FY 2010 MedPAR data file for the HAC-POA
program evaluation was prepared for publication in the FY 2012 IPPS/
LTCH PPS proposed rule. We indicated in the proposed rule that we would
provide the results from the study on the CMS Web site at http://www.cms.gov/HospitalAcqCond/01_Overview.asp and on the RTI Web site at
http://www.rti.org/reports/cms/ when it became available. We also
stated that we anticipated that the examination of FY 2010 MedPAR data
would be completed soon after publication of the proposed rule. We
invited public comment on RTI's analysis of the FY 2010 MedPAR data for
the HAC-POA program.
Since publication of the FY 2012 IPPS/LTCH proposed rule, we
determined that it would be beneficial to the public if we provided a
summary of the results of RTI's HAC-POA program evaluation of the FY
2010 MedPAR data in this FY 2012 IPPS/LTCH final rule, in addition to
making these results available on both the CMS and RTI Web sites
mentioned above. Below we present a summary of these results.
d. FY 2010 RTI Analysis on POA Indicator Reporting of Current HACs.
To better understand the impact of HACs on the Medicare program, it
is necessary to first examine the incidence of POA indicator reporting
across all eligible Medicare discharges. As mentioned previously, only
IPPS hospitals are required to submit POA indicator data for all
diagnosis codes on Medicare claims. Therefore, all non-IPPS hospitals
were excluded, as well as providers in waiver States (Maryland) and
territories other than Puerto Rico.
Using MedPAR claims data from October 2009 through September 2010,
RTI found a total of approximately 74.38 million secondary diagnoses
across approximately 10.2 million discharges. As shown in Chart A
below, the majority of all secondary diagnoses (80.94 percent) were
reported with a POA indicator of ``Y,'' meaning the condition was POA.
Chart A--POA Code Distribution Across All Secondary Diagnoses
------------------------------------------------------------------------
Number Percentage
------------------------------------------------------------------------
Total Discharges in Final File 10,189,168
------------------------------------------------------------------------
Total Number of Secondary Diagnoses 74,382,681 100.00
Across Total Discharges
------------------------------------------------------------------------
POA Indicator Description:
Y Condition present on admission.... 60,206,593 80.94
W Status cannot be clinically 13,145 0.02
determined.........................
N Condition not present on admission 5,001,138 6.72
U Documentation not adequate to 2,223,318 2.99
determine if condition was present
on admission.......................
1 Exempted ICD-9-CM code............ 6,938,487 9.33
------------------------------------------------------------------------
Source: RTI Analysis of MedPAR IPPS Claims, October 2009 through
September 2010.
Following the initial analysis of POA indicator reporting for all
secondary diagnoses, RTI then evaluated POA indicator reporting for
specific HAC-associated secondary diagnoses. The term ``HAC-associated
secondary diagnosis'' refers to those diagnoses that are on the
selected HAC list and were reported as a secondary diagnosis. Chart B
below shows a summary of the HAC categories with the frequency in which
each HAC was reported as a secondary diagnosis and the corresponding
POA indicators assigned on the claims. It is important to note that,
because more than one HAC-associated diagnosis code can be reported per
discharge (that is, on a single claim), the frequency of HAC-associated
diagnosis codes may be more than the actual number of discharges that
have a HAC-associated diagnosis code reported as a secondary diagnosis.
Below we discuss the frequency of each HAC-associated diagnosis code
and the POA indicators assigned to those claims.
RTI analyzed the frequency of each reported HAC-associated
secondary diagnosis (across all approximately 10.2 million discharges)
and the POA indicator assigned to the claim. Chart B below shows that
the most frequently reported conditions were in the Falls and Trauma
HAC category, with a total of 189,231 HAC-associated diagnosis codes
being reported for that HAC category. Of these 189,231 diagnoses, 5,762
reported a POA indicator of ``N'' and 326 reported a POA indicator of
``U'' for not POA. Similarly, 183,048 diagnoses reported a POA
indicator of ``Y'' for POA and 95 diagnoses reported a POA indicator of
``W.'' The lowest frequency appears in the Surgical Site Infection
(SSI) Following Bariatric Surgery for Obesity HAC category with only 18
HAC-associated secondary diagnosis codes (and procedure codes)
reported, where 17 diagnoses were reported with a POA indicator of
``N'' and 1 diagnosis was reported with a POA indicator of ``Y.''
Chart B--POA Status of Current HACS: October 2009 Through September 2010
--------------------------------------------------------------------------------------------------------------------------------------------------------
Treated as hospital acquired Not treated as Hospital acquired
conditions conditions
Frequency as a -------------------------------------------------------------------------------
Selected HAC secondary POA = N POA = U POA = Y POA = W
diagnosis -------------------------------------------------------------------------------
Number Percent Number Percent Number Percent Number Percent
--------------------------------------------------------------------------------------------------------------------------------------------------------
1. Foreign Object Retained After Surgery (CC)........ 565 278 49.2 1 0.2 286 50.6 0 0.0
2. Air Embolism (MCC)................................ 42 29 69.0 0 0.0 13 31.0 0 0.0
3. Blood Incompatibility (CC)........................ 35 12 34.3 0 0.0 23 65.7 0 0.0
4. Pressure Ulcer Stages III & IV (MCC).............. 120,582 1,407 1.2 81 0.1 119,065 98.7 29 0.0
[[Page 51514]]
5. Falls and Trauma (MCC & CC)....................... 189,231 5,762 3.0 326 0.2 183,048 96.7 95 0.1
6. Catheter-Associated UTI (CC)...................... 18,247 3,877 21.2 24 0.1 14,319 78.5 27 0.1
7. Vascular Catheter-Associated Infection (CC)....... 10,066 4,346 43.2 25 0.2 5,673 56.4 22 0.2
8. Poor Glycemic Control (MCC)....................... 16,468 565 3.4 14 0.1 15,888 96.5 1 0.0
9A. Surgical Site Infection Mediastinitis CABG (CC).. 40 36 90.0 0 0.0 4 10.0 0 0.0
9B. Surgical Site Infection Following Certain 365 220 60.3 1 0.3 144 39.5 0 0.0
Orthopedic Procedures (CC)..........................
9C. Surgical Site Infection Following Bariatric 18 17 94.4 0 0.0 1 5.6 0 0.0
Surgery for Obesity (CC)............................
10. Pulmonary Embolism & DVT Orthopedic (MCC)........ 3,820 3,132 82.0 16 0.4 648 17.0 24 0.6
--------------------------------------------------------------------------------------------------
Total*........................................... 359,479 19,681 5.5 488 0.1 339,112 94.3 198 0.1
--------------------------------------------------------------------------------------------------------------------------------------------------------
As described in section II.F.1.f. of this preamble, in the FY 2009
IPPS final rule (73 FR 48486 through 48487), we adopted final payment
policies to: (1) Pay the CC/MCC MS-DRGs for those HACs coded with ``Y''
and ``W'' indicators; and (2) not pay the CC/MCC MS-DRGs for those HACs
coded with ``N'' and ``U'' indicators. We also discussed the comments
we received urging CMS to consider changing the policy and to pay for
those HACs assigned a POA indicator of ``U'' (documentation is
insufficient to determine if the condition was present at the time of
admission). We stated we would monitor the extent to which and under
what circumstances the ``U'' POA reporting option is used. In the FY
2010 IPPS/RY 2010 LTCH PPS final rule (74 FR 43784 and 43785), we also
discussed and responded to comments regarding HACs coded with the ``U''
indicator. As shown in Chart B above, RTI's analysis provides data on a
total of 488 HAC-associated secondary diagnoses reported with a POA
indicator of ``U.'' These 488 diagnoses represented 2.4 percent of the
20,169 diagnoses that were considered not POA (that is, POA indicator
of ``N'' or ``U''). Approximately 3 of the 10 conditions reported no
diagnoses with POA indicators of ``U'': Air embolism, Blood
Incompatibility, and two of the three surgical site infections
(Mediastinitis after CABG and SSI after bariatric surgery for obesity).
For the two most frequently occurring conditions, the Falls and Trauma
HAC category and Stage III and/or IV Pressure Ulcers, diagnoses with a
POA indicator of ``U'' represented a small proportion of diagnoses that
were considered not POA (that is, POA indicator of ``N'' or ``U''). For
the Falls and Trauma HAC category, 5.7 percent of diagnoses (326 cases)
considered not POA were reported with a POA indicator of ``U.'' For
Stage III and/or IV Pressure Ulcers, 5.4 percent of diagnoses (81
cases) considered not POA were reported with a POA indicator of ``U.''
These two categories also represented the conditions where diagnoses
with a POA indicator of ``U'' were the highest proportion of diagnoses
considered not POA. We consider the range of 0 to 5.7 percent to
indicate that ``U'' is not used with great frequency for these 10
conditions. In the proposed rule, we stated that we did not contemplate
a proposal to change our policy under which CMS does not pay at the
higher CC/MCC amount when a selected HAC diagnosis code is reported
with a POA indicator of ``U.'' The data analysis described above
continues to support our policy.
We encourage readers to further review the RTI detailed report
which demonstrates the frequency of each individual HAC-associated
diagnosis code within the HAC categories. As an example, we note that
in the Foreign Object Retained After Surgery HAC category, there are
two unique ICD-9-CM diagnosis codes used to identify that condition:
diagnosis code 998.4 (Foreign body accidentally left during a
procedure) and diagnosis code 998.7 (Acute reaction to foreign
substance accidentally left during a procedure). In the detailed RTI
report, readers can view that diagnosis code 998.4 was reported 547
times and diagnosis code 998.7 was reported 18 times, across all MS-
DRGs, for a total of 565 times. The RTI detailed report is available at
the following Web site: http://www.rti.org/reports/cms/.
e. FY 2010 RTI Analysis of Frequency of Discharges and POA Indicator
Reporting for Current HACs
RTI further analyzed the effect of the HAC provision by studying
the frequency with which a HAC-associated diagnosis was reported as a
secondary diagnosis with a POA indicator of ``N'' or ``U'' and, of that
number, how many resulted in MS-DRG reassignment. In Chart C below,
Column A shows the number of discharges for each HAC category where the
HAC-associated diagnosis was reported as a secondary diagnosis. Column
B shows the percent of discharges reporting a HAC-associated diagnosis
code relative to the total discharges ``at risk'' in each HAC category.
For HAC categories 1 through 8, both medical and surgical MS-DRGs are
included in the total discharges ``at risk'' so this equates to
10,189,168 discharges. The remaining HAC categories are defined by the
combination of diagnosis and procedure codes; therefore, only the
surgical MS-DRGs that include the designated procedure codes are
included in the total discharges ``at risk.'' For HAC 9a, the total
discharges ``at risk'' equates to 97,341. For HAC 9b, the total
discharges ``at risk'' equates to 118,815 and for HAC 9c, the total
discharges ``at risk'' equates to 15,698. Lastly, for HAC 10, the total
discharges ``at risk'' equates to 440,571.
Column C shows the number of discharges for each HAC reported with
a POA indicator of ``N'' or ``U.'' For example, there were 42
discharges that reported Air Embolism as a secondary diagnosis. The
chart shows that, of these 42 reported discharges, 29 discharges (69.05
percent) had a POA indicator of ``N'' or ``U'' and was identified as a
HAC discharge. The HAC policy applied to these 29 discharges, and they
could, therefore, have had an MS-DRG reassignment. Column E shows the
number of discharges where an actual MS-DRG reassignment occurred. For
the Air Embolism HAC, Column E shows that the number of discharges that
resulted in actual MS-DRG reassignments is 15 (51.72 percent of the 29
discharges with a POA indicator of ``N'' or ``U''). Thus, while there
were 29 discharges (69.05 percent of the original
[[Page 51515]]
42 that had air embolism reported as a secondary diagnosis) with an air
embolism reported with a POA indicator of ``N'' or ``U'' identified as
a HAC discharge that could have caused MS-DRG reassignment, 15
discharges (51.72 percent) experienced MS-DRG reassignments. There are
a number of reasons why a selected HAC reported with a POA indicator of
``N'' or ``U'' will not result in MS-DRG reassignment. These reasons
were illustrated with the diagram in section II.F.1.c. of this preamble
and will be discussed in further detail in section II.F.3.e. of this
preamble.
Chart C below also shows that, of the 317,644 discharges with a
HAC-associated diagnosis as a secondary diagnosis, 3,587 discharges
ultimately resulted in MS-DRG reassignment. As we discuss below, there
were 15 claims that resulted in MS-DRG reassignment where 2 HACs were
reported on the same admission. The four HAC categories that had the
most discharges resulting in MS-DRG reassignment were: (1) Falls and
Trauma; (2) Pulmonary Embolism and DVT Orthopedic (Orthopedic PE/DVT);
(3) Pressure Ulcer Stages III & IV; and (4) Catheter-Associated Urinary
Tract Infection (UTI).
Codes falling under the Falls and Trauma HAC category were the most
frequently reported secondary diagnoses with 154,371 discharges. Of
these 154,371 discharges, 5,454 (3.53 percent) were coded as not POA
and identified as HAC discharges. This category also contained the
greatest number of discharges that resulted in an MS-DRG reassignment.
Of the 5,454 discharges within this HAC category that were not POA,
1,672 (30.66 percent) resulted in an MS-DRG reassignment.
Of the 317,644 total discharges reporting HAC-associated diagnoses
as a secondary diagnosis, 3,494 discharges were coded with a secondary
diagnosis of PE/DVT Orthopedic. Of these 3,494 discharges, 2,876 (82.31
percent) were coded as not POA and identified as HAC discharges. This
category contained the second greatest number of discharges resulting
in an MS-DRG reassignment. Of the 2,876 discharges in this HAC category
that were not POA, 1,206 discharges (41.93 percent) resulted in an MS-
DRG reassignment.
The Pressure Ulcer Stages III & IV category had the second most
frequently coded secondary diagnoses, with 114,138 discharges. Of these
discharges, 1,444 (1.27 percent) were coded as not POA and identified
as HAC discharges. This category contained the third greatest number of
discharges resulting in an MS-DRG reassignment. Of the 1,444 discharges
in this HAC category that were not POA, 292 discharges (20.22 percent)
resulted in an MS-DRG reassignment.
The Catheter-Associated UTI category had the third most frequently
coded secondary diagnoses, with 18,247 discharges. Of these discharges,
3,885 (21.29 percent) were coded as not POA and identified as HAC
discharges. This category contained the fourth greatest number of
discharges resulting in an MS-DRG reassignment. Of the 3,885 discharges
in this HAC category that were not POA, 223 discharges (5.74 percent)
resulted in a MS-DRG reassignment.
The remaining 6 HAC categories only had 194 discharges that
ultimately resulted in MS-DRG reassignment. We note that, even in cases
where a large number of HAC-associated secondary diagnoses were coded
as not POA, this finding did not necessarily translate into a large
number of discharges that resulted in MS-DRG reassignment. For example,
only 22 of the 4,366 Vascular Catheter-Associated Infection secondary
diagnoses that were coded as not POA and identified as HAC discharges
resulted in a MS-DRG reassignment.
There were a total of 364 discharges with a HAC-associated
secondary diagnosis reporting a POA indicator of ``N'' or ``U'' that
were excluded from acting as a HAC discharge (subject to MS-DRG
reassignment) due to the CC Exclusion List logic within the GROUPER.
The CC Exclusion List identifies secondary diagnosis codes designated
as a CC or MCC that are disregarded by the GROUPER logic when reported
with certain principal diagnoses. For example, a claim with the
principal diagnosis code of 250.83 (Diabetes with other specified
manifestations, type 1 [juvenile type], uncontrolled) and a secondary
diagnosis code of 250.13 (Diabetes with ketoacidosis, type 1, [juvenile
type], uncontrolled) with a POA indicator of ``N'' would result in the
HAC-associated secondary diagnosis code 250.13 being ignored as a CC.
According to the CC Exclusion List, code 250.13 is excluded from acting
as a CC when code 250.83 is the principal diagnosis. As a result, the
HAC logic would not be applicable to that case. For a detailed
discussion on the CC Exclusion List, we refer readers to section
II.G.9. of this preamble.
Discharges where the HAC logic was not applicable due to the CC
Exclusion List occurred among the following 6 HAC categories: Pressure
Ulcer Stages III and IV (29 cases); Falls and Trauma (263 cases);
Catheter-Associated UTI (16 cases); Vascular Catheter-Associated
Infection (5 cases); Manifestations of Poor Glycemic Control (50
cases); and Surgical Site Infection Following Certain Orthopedic
Procedures (1 case). Further information regarding the specific number
of cases that were excluded for each HAC-associated secondary diagnosis
code within each of the above mentioned HAC categories is also
available in the RTI detailed report, which can be found at: http://www.rti.org/reports/cms/.
In summary, Chart C below demonstrates that there were a total of
317,644 discharges with a reported HAC-associated secondary diagnosis.
Of the total 317,644 discharges, 6.0 percent, or 19,143 discharges,
were HACs reported with a POA indicator of ``N'' or ``U'' that were
identified as a HAC discharge. Approximately 18.7 percent, or 3,587
discharges, of these 19,143 discharges resulted in MS-DRG
reassignments.
Chart C--Discharge Frequencies of Current CMS HACS October 2009 Through September 2010
----------------------------------------------------------------------------------------------------------------
Discharges with this Discharges identified as Discharges that change
condition as secondary a HAC MS-DRG due to HAC
diagnosis ---------------------------------------------------
Selected HAC category --------------------------
Number Percent \2\ Number Percent \3\ Number Percent \4\
(column a) (column b) (column c) (column d) (column e) (column f)
----------------------------------------------------------------------------------------------------------------
1. Foreign Object Retained After 563 0.01 278 49.38 44 15.83
Surgery..........................
2. Air Embolism................... 42 0.00 29 69.05 15 51.72
3. Blood Incompatibility.......... 35 0.00 12 34.29 0 0.00
4. Pressure Ulcer Stages III & IV. 114,138 1.12 1,444 1.27 292 20.22
5. Falls and Trauma............... ........... ........... ........... ........... ........... ...........
a. Fracture....................... 137,888 1.35 4,700 3.41 1,439 30.62
[[Page 51516]]
b. Dislocation.................... 1,105 0.01 35 3.17 4 11.43
c. Intracranial Injury............ 15,844 0.16 706 4.46 234 33.14
d. Crushing Injury................ 41 0.00 2 4.88 1 50.00
e. Burn........................... 2,297 0.02 39 1.70 6 15.38
f. Electric Shock................. 818 0.01 9 1.10 0 0.00
Less: Discharges with multiple -3,622 -0.04 -37 -1.02 -12 -32.43
Falls & Trauma...................
5. Falls and Trauma: Unduplicated 154,371 1.52 5,454 3.53 1,672 30.66
Total............................
6. Catheter-Associated UTI........ 18,247 0.18 3,885 21.29 223 5.74
7. Vascular Catheter-Associated 10,066 0.10 4,366 43.37 22 0.50
Infection........................
8. Poor Glycemic Control.......... 16,267 0.16 526 3.23 107 20.34
9a. SSI Mediastinitis CABG........ 40 0.04 36 90.00 4 11.11
9b. SSI Orthopedic................ 363 0.31 220 60.61 2 0.91
9c. SSI Bariatric................. 18 0.11 17 94.44 0 0.00
10. Pulmonary Embolism & DVT 3,494 0.79 2,876 82.31 1,206 41.93
Orthopedic.......................
-----------------------------------------------------------------------------
Total \1\..................... 317,644 ........... 19,143 ........... 3,587 ...........
----------------------------------------------------------------------------------------------------------------
\1\ Discharges can appear in more than one row. The total figure is not adjusted for the 94 discharges with more
than one HAC that appear as secondary diagnoses (15 of these resulted in MS-DRG reassignment).
\2\ Percent computed relative to total discharges ``at risk'' for this HAC. For HACs 1-8, this is 10,189,168.
For HAC 9a, this is 97,341. For HAC 9b, this is 118,815. For HAC 9c, this is 15,698. For HAC 10, this is
440,571.
\3\ Percent computed relative to discharges with condition as a secondary diagnosis.
\4\ Percent computed relative to discharges with this HAC (Column C).
Source: RTI Analysis of MedPAR IPPS Claims, October 2009 through September 2010.
An extremely small number of discharges had multiple HACs reported
during the same stay. In reviewing the approximately 10.2 million
claims, RTI found approximately 94 cases in which 2 HACs were reported
on the same discharge. Chart D below summarizes these cases. Thirty-two
of the cases with 2 HACs involved Pressure Ulcer Stages III & IV, and
31 cases involved Falls or Trauma. Other multiple HAC cases included 27
Catheter-Associated UTI cases, 3 Vascular Catheter-Associated Infection
cases and 1 Foreign Object Retained After Surgery case. There were
eight cases in which a Falls and Trauma HAC was reported together with
a Pressure Ulcer Stages III & IV HAC.
Some of these cases with multiple HACs reported had both HAC codes
ignored in the MS-DRG assignment. Of these 66 claims, 49 did not
receive higher payments based on the presence of these reported HACs,
and we describe these claims in section II.F.3.f.(2) of this preamble.
Depending on the MS-DRG to which the cases were originally assigned,
ignoring the HAC codes would have led to a MS-DRG reassignment if there
were no other MCCs or CCs reported, if the MS-DRG was subdivided into
severity levels, and if the case were not already in the lowest
severity level prior to ignoring the HAC codes.
Chart D--Claims With More Than One HAC Secondary Diagnosis October 2009 Through September 2010
----------------------------------------------------------------------------------------------------------------
7. Vascular
1. Foreign 4. Pressure 5. Falls and 6. Catheter- catheter-
HAC object--CC ulcer stages trauma--MCC & associated associated
III & IV--MCC CC UTI--CC infection--CC
----------------------------------------------------------------------------------------------------------------
5. Falls and trauma--MCC & CC... .............. 8 .............. .............. ..............
6. Catheter-Associated UTI--CC.. .............. 8 12 .............. ..............
7. Vascular Catheter-Associated .............. 12 6 21 ..............
Infection--CC..................
8. Poor Glycemic Control--MCC... .............. 1 2 .............. 1
9B. Surgical Site Infection 1 .............. .............. .............. 2
Following Certain Orthopedic
Procedures--CC.................
10. Pulmonary Embolism & DVT .............. 3 11 6 ..............
Orthopedic--MCC................
-------------------------------------------------------------------------------
Total....................... 1 32 31 27 3
----------------------------------------------------------------------------------------------------------------
f. RTI Analysis of Circumstances When Application of HAC Provisions
Would Not Result in MS-DRG Reassignment for Current HACs
As discussed in section II.F.1. and illustrated in the diagram in
section II.F.1.c. of this preamble, there are instances when the MS-DRG
assignment does not change even when there is a HAC as a secondary
diagnosis (meaning a HAC-associated secondary diagnosis has a POA
indicator of either ``N'' or ``U.'') In analyzing our claims data, RTI
identified four main reasons why a MS-DRG assignment would not change
despite the presence of a HAC. Those four reasons are described below
and are shown in Chart E below. Column A shows the frequency of
discharges that included a HAC-associated secondary diagnosis. Column
[[Page 51517]]
B shows the frequency of discharges where the HAC-associated secondary
diagnosis was coded as not POA and, therefore, identified as a HAC
discharge. Column C shows the frequency of discharges in which the HAC-
associated secondary diagnosis coded as not POA resulted in a change in
MS-DRG. Columns D, E, F, and G show the frequency of discharges in
which the HAC-associated secondary diagnosis coded as not POA did not
result in a change in MS-DRG assignment. Columns D, E, F, and G are
explained in more detail below.
(1) Other MCCs/CCs Prevent Reassignment
Column D (Other MCC/CCs that Prevent Reassignment) in Chart E below
indicates the number of cases reporting a HAC (cases with HAC-
associated diagnosis codes with a POA of ``N'' or ``U'') that did not
have a MS-DRG reassignment because of the presence of other secondary
diagnoses on the MCC or CC list. A claim that is coded with a HAC-
associated secondary diagnoses and a POA status of either ``N'' or
``U'' may have other secondary diagnoses that are classified as an MCC
or a CC. In such cases, the presence of these other MCC and CC
diagnoses will still lead to the assignment of a higher severity level,
despite the fact that the GROUPER software is disregarding the ICD-9-CM
code that identifies the selected HAC in making the MS-DRG assignment
for that claim. For example, there were 156 cases in which the ICD-9-CM
codes for the Foreign Object Retained After Surgery HAC category were
present, but the presence of other secondary diagnoses that were MCCs
or CCs resulted in no change to the MS-DRG assignment. Chart E shows
that a total of 11,818 cases with HACs did not have a change in the MS-
DRG assignment because of the presence of other reported MCCs and CCs.
This represents approximately 76 percent of the 15,556 cases with HACs
that did not have a change in MS-DRG assignment.
(2) Two Severity Levels Where HAC Does Not Impact MS-DRG Assignment
Column E (Number of MS-DRGs with Two Severity Levels Where HAC Does
Not Impact MS-DRG Assignment) shows the frequency with which discharges
with a HAC (cases with HAC-associated diagnosis codes with a POA of
``N'' or ``U'') did not result in an MS-DRG change because the MS-DRG
is subdivided solely by the presence or absence of an MCC. A claim with
a HAC and a POA indicator of either ``N'' or ``U'' may be assigned to
an MS-DRG that is subdivided solely by the presence or absence of an
MCC. In such cases, removing a HAC ICD-9-CM CC code will not lead to
further changes in the MS-DRG assignment. Examples of these MS-DRG
subdivisions are shown in the footnotes to the chart and include the
following examples:
MS-DRGs 100 and 101 (Seizures with or without MCC,
respectively)
MS-DRGs 102 and 103 (Headaches with or without MCC,
respectively)
The codes that fall under the HAC category of Foreign Object
Retained After Surgery are CCs. If this case were assigned to a MS-DRG
with an MCC subdivision such as MS-DRGs 100 and 101, the presence of
the HAC code would not affect the MS-DRG severity level assignment. In
other words, if the Foreign Object Retained After Surgery code were the
only secondary diagnosis reported, then the case would be assigned to
MS-DRG 101 (Seizure without MCC). If the POA indicator was ``N,'' the
HAC Foreign Object Retained After Surgery code would be ignored in the
MS-DRG assignment logic. Despite the fact that the code was ignored,
the case would still be assigned to the same, lower severity level MS-
DRG. Therefore, there would be no impact on the MS-DRG assignment.
Column E in Chart E below shows that there were 2,282 cases where
the HAC code was reported with an ``N'' or ``U'' and the MS-DRG
assignment did not change because the case was already assigned to the
lowest severity level. This represents approximately 15 percent of the
15,556 cases with HACs that did not have a change in MS-DRG assignment.
(3) No Severity Levels
Column F (Number of MS-DRGs with No Severity Levels) shows the
frequency with which discharges with an HAC (cases with HAC-associated
diagnosis codes with a POA of ``N'' or ``U'') did not result in an MS-
DRG change because the MS-DRG that the case was assigned to is not
subdivided by severity levels. For instance, MS-DRG 311 (Angina
Pectoris) has no severity level subdivisions; this MS-DRG is not split
based on the presence of an MCC or a CC. If a patient assigned to this
MS-DRG develops a secondary diagnosis such as a Stage III pressure
ulcer after admission, the condition would be considered a HAC. The
code for the Stage III pressure ulcer would be ignored in the MS-DRG
assignment because the condition developed after the admission (the POA
indicator was ``N''). Despite the fact that the ICD-9-CM code for the
HAC Stage III pressure ulcer was ignored, the MS-DRG assignment would
not change. The case would still be assigned to MS-DRG 311. Chart E
below shows that 1,449 cases reporting a HAC (cases with HAC-associated
diagnosis codes with a POA of ``N'' or ``U'') did not undergo a change
in the MS-DRG assignment based on the fact that the case was assigned
to a MS-DRG that had no severity subdivisions (that is, the MS-DRG is
not subdivided based on the presence or absence of an MCC or a CC,
rendering the presence of the HAC irrelevant for payment purposes).
This represents approximately 9 percent of the 15,556 cases with HACs
that did not have a change in MS-DRG assignment.
(4) MS-DRG Logic
Column G (MS-DRG Logic Issues) shows the frequency with which a HAC
(cases with HAC-associated diagnosis codes with a POA of ``N'' or
``U'') did not result in an MS-DRG change because of MS-DRG assignment
logic. There were seven discharges where the HAC criteria were met and
the HAC logic was applied. However, due to the structure of the MS-DRG
logic, these cases did not result in MS-DRG reassignment. These cases
may appear similar to those discharges where the MS-DRG is subdivided
into two severity levels by the presence or absence of an MCC and did
not result in MS-DRG reassignment. However, these discharges differ
slightly in that the MS-DRG logic also considers specific procedures
that were reported on the claim. In other words, for certain MS-DRGs, a
procedure may be considered the equivalent of an MCC or a CC. The
presence of the procedure code dictates the MS-DRG assignment despite
the presence of the HAC-associated secondary diagnosis code with a POA
indicator of ``N'' or ``U.''
For example, a claim with the principal diagnosis code of 441.1
(Thoracic aneurysm, ruptured) with HAC-associated secondary diagnosis
code of 996.64 (Infection and inflammatory reaction due to indwelling
urinary catheter) and non-HAC secondary diagnosis code 599.0 (Urinary
tract infection, site not specified), having POA indicators of ``Y,''
``N,'' and ``N,'' respectively, and procedure code 39.73 (Endovascular
implantation of graft in thoracic aorta) currently results in an
assignment to MS-DRG 237 (Major Cardiovascular Procedures with MCC or
Thoracic Aortic Aneurysm Repair). In this case, the thoracic aortic
aneurysm repair is what dictated the MS-DRG assignment, and the
presence of the HAC-associated secondary diagnosis code, 996.64, did
not affect the MS-DRG assignment. Other examples of MS-
[[Page 51518]]
DRGs that are subdivided in this same manner are as follows:
MS-DRG 029 (Spinal procedures with CC or Spinal
Neurostimulators)
MS-DRG 129 (Major Head & Neck Procedures with CC/MCC or Major
Device)
MS-DRG 246 (Percutaneous Cardiovascular Procedure with Drug-
Eluting Stent with MCC or 4+ Vessels/Stents)
Column G in the chart below shows that three of the seven cases
that did not result in MS-DRG reassignment due to the MS-DRG logic were
in the Falls and Trauma HAC category, two cases were in the Catheter
Associated UTI HAC category and two cases were in the Vascular
Catheter-Associated Infection HAC Category.
In conclusion, a total of 15,556 cases (11,818 + 2,282 +1,449 + 7)
did not have a change in MS-DRG assignment, regardless of the presence
of a HAC. The reasons described above explain why only 3,587 cases had
a change in MS-DRG assignment despite the fact that there were 19,143
HACs (cases with HAC-associated diagnosis codes with a POA of ``N'' or
``U'').
Chart E--Reasons HAC Did Not Change MS-DRG Assignment October 2009 Through September 2010
--------------------------------------------------------------------------------------------------------------------------------------------------------
HAC discharges that do not change MS-DRG
---------------------------------------------------------------
Number of Number of HAC Number of MS-
discharges Number of discharges DRGs with two
with this discharges that change MS- Number of severity Number of MS-
Selected HAC category condition as identified as DRG due to HAC other MCCs/CCs levels where DRGs with no Other MS-DRG
secondary a HAC (Column (Column C) that prevent HAC does not severity logic issues
diagnosis B) reassignment affect MS-DRG levels ** (Column G)
(Column A) (Column D) assignment * (Column F)
(Column E)
--------------------------------------------------------------------------------------------------------------------------------------------------------
1. Foreign Object Retained After 563 278 44 156 67 11 0
Surgery--CC............................
2. Air Embolism--MCC.................... 42 29 15 14 0 0 0
3. Blood Incompatibility--CC............ 35 12 0 9 0 3 0
4. Pressure Ulcer Stages III & IV--MCC.. 114,138 1,444 292 895 0 257 0
5. Falls and Trauma--MCC & CC........... 154,371 5,454 1,672 2,858 570 351 3
6. Catheter-Associated UTI--CC.......... 18,247 3,885 223 2,930 490 240 2
7. Vascular Catheter-Associated 10,066 4,366 22 3,656 189 497 2
Infection--CC..........................
8. Poor Glycemic Control--MCC & CC...... 16,267 526 107 364 3 52 0
9A. Surgical Site Infection, 40 36 4 24 0 8 0
Mediastinitis, Following Coronary
Artery Bypass Graft (CABG)--MCC........
9B. Surgical Site Infection Following 363 220 2 136 79 3 0
Certain Orthopedic Procedures--CC......
9C. Surgical Site Infection Following 18 17 0 17 0 0 0
Bariatric Surgery for Obesity--CC......
10. Pulmonary Embolism & DVT Orthopedic-- 3,494 2,876 1,206 759 884 27 0
MCC & CC...............................
---------------------------------------------------------------------------------------------------------------
Total \1\........................... 317,644 19,143 3,587 11,818 2,282 1,449 7
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Discharges can appear in more than one row. The total figure is not adjusted for the approximately 94 discharges with more than one HAC that appear
as secondary diagnoses (15 of these discharges resulted in MS-DRG reassignment).
* Examples where an HAC classified as a CC would not affect the DRG assignment if it were removed. The MS-DRG is subdivided by the presence or absence
of an MCC. A CC would not impact this DRG assignment.
[dec221]MS-DRGs 100 and 101 (Seizures with or without MCC, respectively).
[dec221]MS-DRGs 102 and 103 (Headaches with or without MCC, respectively).
** Examples where HAC did not change MS-DRG assignment because of the MS-DRG logic.
[dec221]MS-DRG 029 (Spinal Procedures with CC or Spinal Neurostimulators).
[dec221]MS-DRG 120 (Major Head & Neck Procedures with CC/MCC or Major Device).
Source: RTI Analysis of MedPAR IPPS Claims, October 2009 through September 2010.
[[Page 51519]]
g. RTI Analysis of Coding Changes for HAC-Associated Secondary
Diagnoses for Current HACs
In addition to studying claims from October 2009 through September
2010, RTI evaluated claims data from 3 years prior to determine if
there were significant changes in the number of discharges with a HAC-
associated code being reported as a secondary diagnosis. To provide
consistency with the FY 2010 data studied, RTI examined claims using
discharge dates from October 2006 through September 2007 (for FY 2007),
October 2007 through September 2008 (for FY 2008), October 2008 through
September 2009 (FY 2009) and compared these data to the FY 2010 data.
We refer readers to the RTI detailed report for further information
regarding all the conditions in each fiscal year (FY 2007 through FY
2010) as described above at the Web site: http://www.rti.org/reports/cms/.
h. RTI Analysis of Estimated Net Savings for Current HACs
RTI determined estimates of the net savings generated by the HAC
payment policy based on MedPAR claims for FY 2010, from October 2009
through September 2010.
(1) Net Savings Estimation Methodology
The payment impact of a HAC is the difference between the IPPS
payment amount under the initially assigned MS-DRG and the amount under
the reassigned MS-DRG. The amount for the reassigned MS-DRG appears on
the MedPAR files. To calculate this payment impact, RTI modeled the
IPPS payments for each MS-DRG following the same approach that we use
to model the impact of IPPS annual rule changes. Specifically, RTI
replicated the payment computations carried out in the IPPS PRICER
program using payment factors for IPPS providers as identified in
various CMS downloaded files. The files used are as follows:
Version 27 of the Medicare Severity GROUPER software
(applicable to discharges between October 1, 2009 and September 30,
2010). IPPS MedPAR claims were run through this file to obtain needed
HAC-POA output variables.
The FY 2010 MS-DRG payment weight file. This file includes
the weights, geometric mean length of stay (GLOS), and the postacute
transfer payment indicators.
CMS standardized operating and capital rates. Tables 1A
through 1C, as downloaded from the Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS/IPPS2010, include the full update and reduced update
amounts, as well as the information needed to compute the blended
amount for providers located in Puerto Rico.
The IPPS impact file for FY 2010, as downloaded from the
Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS/IPPS2010/. This
file includes the wage index and geographic adjustment factors plus the
provider type variable to identify providers qualifying for alternative
hospital-specific amounts and their respective hospital-specific
payment rates.
The IPPS impact file for FY 2011, as downloaded from the
Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS/11FR/. This file
includes indirect medical education (IME) and disproportionate share
(DSH) percent adjustments as well as the operating and capital CCRs
that were in effect as of March 2010.
CMS historical provider-specific files (PSFs). These files
include the indicator to identify providers subject to the full or
reduced standardized rates and the applicable operating and capital
CCRs. A SAS version was downloaded from the Web site at: http://www.cms.hhs.gov/ProspMedicareFeeSvcPmtGen/04_psf_SAS.asp. There were
50 providers with discharges in the final HAC analysis file that did
not appear in the FY 2010 impact file, of which 11 also did not appear
in the FY 2011 impact file. For these providers, we identified the
geographic CBSA from the historical PSF and assigned the wage index
using values from Tables 4A and 4C as downloaded from the Web site at:
http://www.cms.hhs.gov/AcuteInpatientPPS/IPPS2010/. For providers in
the FY 2011 file but not the FY 2010 file, we used IME and DSH rates
from FY 2011. The 11 providers in neither impact file were identified
as non-IME and non-DSH providers in the historical PSF file.
The steps for estimating the HAC payment impact are as follows:
Step 1: Re-run the Medicare Severity GROUPER on all records in the
analysis file. This is needed to obtain information on actual HAC-
related MS-DRG reassignments in the file, and to identify the CCs and
MCCs that contribute to each MS-DRG assignment.
Step 2: Model the base payment and outlier amounts associated with
the initial MS-DRG if the HAC were excluded using the computations laid
out in the CMS file ``Outlier Example FY 2007 new.xls,'' as downloaded
from the Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS/04_outlier.asp#TopOfPage, and modified to accommodate FY 2010 factors.
RTI's first round of computations treated all claims as though paid
under standard IPPS rules without adjusting for short-stay transfers or
hospital-specific payment amounts.
Step 3: Model the base payment and outlier amounts associated with
the final MS-DRG where the HAC was excluded using the computations laid
out in the CMS file ``Outlier Example FY 2007 new.xls,'' as downloaded
from the Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS/04_outlier.asp#TopOfPage and modified to accommodate FY 2010 factors.
RTI's first round of computations treated all claims as though paid
under standard IPPS rules without adjusting for short-stay transfers or
hospital-specific payment amounts.
Step 4: Compute MS-DRG base savings as the difference between the
nonoutlier payments for the initial and final MS-DRGs. Compute outlier
amounts as the difference in outlier amounts due under the initial and
final reassigned MS-DRG. Compute net savings due to HAC reassignment as
the sum of base savings plus outlier amounts.
Step 5: Adjust the model to incorporate short-stay transfer payment
adjustments.
Step 6: Adjust the model to incorporate hospital-specific payments
for qualifying rural providers receiving the hospital-specific payment
rates.
It is important to mention that using the methods described above,
the MS-DRG and outlier payments amounts that are modeled for the final
assigned MS-DRG do not always match the MS-DRG price and outlier
amounts that appear in the MedPAR record. There are several reasons for
this. Some discrepancies are caused by using single wage index, IME,
and DSH factors for the full period covered by the discharges, when, in
practice, these payment factors can be adjusted for individual
providers during the course of the fiscal year. In addition, RTI's
approach disregards any Part A coinsurance amounts owed by individual
beneficiaries with greater than 60 covered days in a spell of illness.
Five percent of all HAC discharges showed at least some Part A
coinsurance amount due from the beneficiary, although less than 2
percent of reassigned discharges (55 cases in the analysis file) showed
Part A coinsurance amounts due. Any Part A coinsurance payments would
reduce the actual savings incurred by the Medicare program.
There are also a number of less common special IPPS payment
situations that are not factored into
[[Page 51520]]
RTI's modeling. These could include new technology add-on payments,
payments for blood clotting factors, reductions for replacement medical
devices, adjustments to the capital rate for new providers, and
adjustments to the capital rate for certain classes of providers who
are subject to a minimum payment level relative to capital cost.
(2) Net Savings Estimate
Chart F below summarizes the estimated net savings of current HACs
based on MedPAR claims from October 2009 through 2010, based on the
methodology described above. Column A shows the number of discharges
where a MS-DRG reassignment for each HAC category occurred. For
example, there were 15 discharges with an air embolism that resulted in
an actual MS-DRG reassignment. Column B shows the total net savings
caused by MS-DRG reassignments for each HAC category. Continuing with
the example of air embolism, the chart shows that the 15 discharges
with an MS-DRG reassignment resulted in a total net savings of
$118,785. Column C shows the net savings per discharge for each HAC
category. For the Air Embolism HAC category, the net savings per
discharge is $7,919. Because a single discharge can have more than one
HAC, discharges can appear in more than one row. The total net savings
shown in the last line of Column B is adjusted to avoid duplicate
counting and is therefore less than the sum of the net savings from the
lines above.
Chart F--Estimated Net Savings of Current HACs October 2009 Through September 2010
----------------------------------------------------------------------------------------------------------------
Number of
discharges that Net savings (in Net savings per
Selected HAC change MS-DRG dollars) discharge (in
due to HAC dollars)
----------------------------------------------------------------------------------------------------------------
(Column A) (Column B) (Column C)
1. Foreign Object Retained After Surgery.................. 44 $159,841 $3,633
2. Air Embolism........................................... 15 118,785 7,919
3. Blood Incompatibility.................................. 0 0 0
4. Pressure Ulcer Stages III & IV......................... 292 1,795,456 6,149
5. Falls and Trauma:
a. Fracture........................................... 1,439 8,119,308 5,642
b. Dislocation........................................ 4 13,244 3,311
c. Intracranial Injury................................ 234 1,127,066 4,817
d. Crushing Injury.................................... 1 7,826 7,826
e. Burn............................................... 6 15,594 2,599
f. Shock.............................................. 0 0 0
Less: Discharges with Multiple Falls & Trauma \1\..... -12 -82,330 -6,861
-----------------------------------------------------
5. Falls and Trauma: Unduplicated Total........... 1,672 9,200,708 5,503
6. Catheter-Associated UTI................................ 223 696,662 3,124
7. Vascular Catheter-Associated Infection................. 22 77,690 3,531
8. Poor Glycemic Control.................................. 107 604,308 5,648
9a. SSI Mediastinitis CABG................................ 4 32,392 8,098
9b. SSI Orthopedic........................................ 2 15,044 7,522
9c. SSI Bariatric......................................... 0 0 0
10. Pulmonary Embolism & DVT Orthopedic................... 1,206 8,826,912 7,319
-----------------------------------------------------
Total................................................. 3,587 21,527,798 6,002
-----------------------------------------------------
Less: Discharges with Multiple HACs \2\............... -15 -77,703 -5,180
-----------------------------------------------------
Unduplicated Total................................ 3,572 21,450,095 6,005
----------------------------------------------------------------------------------------------------------------
\1\ Discharges can have more than one Falls and Trauma HAC and therefore appear in more than one row.
\2\ Discharges can have more than one HAC and therefore appear in more than one row.
Source: RTI Analysis of MedPAR IPPS Claims, October 2009 through September 2010.
As shown in Chart F above, the unduplicated total net savings
calculated for the 12-month period from October 2009 through September
2010 was approximately $21.5 million. The three HACs with the largest
number of discharges resulting in MS-DRG reassignment, Falls and
Trauma, Orthopedic PE/DVT, and Pressure Ulcer Stages III & IV,
generated approximately $19.83 million of net savings for the 12-month
period. Estimated net savings for the 12-month period associated with
the Falls and Trauma category were approximately $9.20 million.
Estimated net savings associated with Orthopedic PE/DVT for the 12-
month period were approximately $8.83 million. Estimated net savings
for the 12-month period associated with Pressure Ulcer Stages III & IV
were approximately $1.80 million.
The mean net savings per discharge calculated for the 12-month
period from October 2009 through September 2010 was approximately
$6,005. The HAC categories of Air Embolism; SSI, Mediastinitis,
Following Coronary Artery Bypass Graft (CABG); and SSI Following
Certain Orthopedic Procedures had the highest net savings per
discharge, but represented a small proportion of total net savings
because the number of discharges that resulted in MS-DRG reassignment
for these HACs was low. With the exception of Blood Incompatibility and
SSI Following Bariatric Surgery for Obesity, where no savings occurred
because no discharges resulted in MS-DRG reassignment, Catheter-
Associated UTI had the lowest net savings per discharge.
We refer readers to the RTI detailed report available at the Web
site: http://www.rti.org/reports/cms/.
As mentioned previously, an extremely small number of cases in the
12-month period of FY 2010 analyzed by RTI had multiple HACs during the
same stay. In reviewing approximately 10.2 million claims, RTI found
[[Page 51521]]
approximately 94 cases where 2 HACs were reported on the same admission
as noted in section II.F.3.g.(2) of this preamble. Of these
approximately 94 claims, 15 resulted in MS-DRG reassignment. Chart G
below summarizes these cases. There were 15 cases that had 2 HACs not
POA that resulted in an MS-DRG reassignment. Of these, four discharges
involved Pressure Ulcer Stages III & IV, four discharges involved Falls
and Trauma, and seven discharges involved Vascular Catheter-Associated
Infection.
Chart G--Claims With More Than One HAC Secondary Diagnosis Where MS-DRG Reassignment Occurred October 2009
Through September 2010
----------------------------------------------------------------------------------------------------------------
7. Vascular
4. Pressure 5. Falls and Catheter-
Selected HAC Ulcer Stages III Trauma--MCC & CC Associated
& IV-MCC Infection--CC
----------------------------------------------------------------------------------------------------------------
5. Falls and Trauma--MCC & CC............................. 2 ................ ................
6. Catheter-Associated Urinary Tract Infection (UTI)--CC.. 1 2 6
7. Vascular Catheter-Associated Infection--CC............. 1 2 ................
9B. Surgical Site Infection Following Certain Orthopedic ................ ................ 1
Procedures--CC...........................................
-----------------------------------------------------
Total................................................. 4 4 7
----------------------------------------------------------------------------------------------------------------
As we discuss in section II.F.1.b. of this preamble, implementation
of this policy is the part of an array of Medicare VBP tools that we
are using to promote increased quality and efficiency of care. We point
out that a decrease over time in the number of discharges where these
conditions are not POA is a desired consequence. We recognize that
estimated net savings would likely decline as the number of such
discharges decline. However, we believe that the sentinel effect
resulting from CMS identifying these conditions is critical. (We refer
readers to section IV.A. of this preamble for a discussion of the
inclusion of the incidence of these conditions in the Hospital IQR
Program.) It is our intention to continue to monitor trends associated
with the frequency of these HACs and the estimated net payment impact
through RTI's program evaluation and possibly beyond.
i. Previously Considered Candidate HACs--RTI Analysis of Frequency of
Discharges and POA Indicator Reporting
RTI evaluated the frequency of conditions previously considered,
but not adopted as HACs in prior rulemaking, that were reported as
secondary diagnoses (across all approximately 10.2 million discharges),
as well as the POA indicator assignments for these conditions. Chart H
below indicates that the four previously considered candidate
conditions most frequently reported as a secondary diagnosis were: (1)
Clostridium Difficile-Associated Disease (CDAD), which demonstrated the
highest frequency, with a total of 90,243 secondary diagnoses codes
being reported for that condition, of which 29,306 reported a POA
indicator of ``N''; (2) Methicillin-Resistant Staphylococcus aureus,
with a total of 72,313 secondary diagnoses codes being reported for
that condition, with 2,165 of those reporting a POA indicator of ``N'';
and (3) Staphylococcus aureus Septicemia, with a total of 24,327
secondary diagnoses codes being reported for that condition, with 5,490
of those reporting a POA indicator of ``N''; and (4) Iatrogenic
Pneumothorax, with a total of 22,506 secondary diagnoses codes being
reported for that condition, with 19,581 of those reporting a POA
indicator of ``N.'' As these four conditions had the most significant
impact for reporting a POA indicator of ``N,'' it is reasonable to
believe that these same three conditions would have the greatest number
of potential MS-DRG reassignments. The frequency of discharges for the
previously considered HACs that could lead to potential changes in MS-
DRG assignment is discussed in the next section. We take this
opportunity to remind readers that because more than one previously
considered HAC diagnosis code can be reported per discharge (on a
single claim) that the frequency of these diagnosis codes may be more
than the actual number of discharges with a previously considered
candidate condition reported as a secondary diagnosis.
Chart H--POA Status of Previously Considered ``Candidate'' HAC Conditions--October 2009 Through September 2010
--------------------------------------------------------------------------------------------------------------------------------------------------------
Not Present on Admission Present on Admission
Frequency as a -------------------------------------------------------------------------------
Previously considered HAC condition secondary POA = N POA = U POA = Y POA = W
diagnosis -------------------------------------------------------------------------------
Number Percent Number Percent Number Percent Number Percent
--------------------------------------------------------------------------------------------------------------------------------------------------------
1. Clostridium Difficile-Associated Disease (CDAD)... 90,243 29,306 32.47 416 0.46 60,397 66.93 124 0.14
2. Delirium.......................................... 757 190 25.10 ........ ........ 567 74.90 0 0.00
3. Legionnaire's Disease............................. 426 27 6.34 2 0.47 397 93.19 0 0.00
4. Staphylococcus aureus Septicemia.................. 24,327 5,490 22.57 65 0.27 18,738 77.03 34 0.14
5. Methicillin-Resistant Staphylococcus aureus....... 72,313 2,165 2.99 124 0.17 70,008 96.81 16 0.02
6. Iatrogenic Pneumothorax........................... 22,506 19,581 87.00 15 0.07 2,907 12.92 3 0.01
7. Ventilator-Associated Pneumonia................... 4,278 3,159 73.84 5 0.12 1,110 25.95 4 0.09
--------------------------------------------------------------------------------------------------------------------------------------------------------
In Chart I below, Column A shows the number of discharges for each
previously considered candidate HAC category when the condition was
reported as a secondary diagnosis. For example, there were 90,243
discharges that reported CDAD as a secondary diagnosis. Previously
considered candidate HACs reported with a POA indicator of ``N'' or
``U'' may cause MS-DRG reassignment (which would result in reduced
payment to the facility).
[[Page 51522]]
Column C shows the discharges for each previously considered candidate
HAC reported with a POA indicator of ``N'' or ``U.'' Continuing with
the example of CDAD, Chart I shows that, of the 90,243 discharges,
29,722 discharges (32.94 percent) had a POA indicator of ``N'' or
``U.'' Therefore, there were a total of 29,722 discharges that could
potentially have had an MS-DRG reassignment. Column E shows the number
of discharges where an actual MS-DRG reassignment could have occurred;
the number of discharges with CDAD that could have resulted in actual
MS-DRG reassignments is 830 (2.79 percent). Thus, while there were
29,722 discharges with CDAD reported with a POA indicator of ``N'' or
``U'' that could potentially have had an MS-DRG reassignment, the
result was 830 (2.79 percent) potential MS-DRG reassignments. As
discussed above, there are a number of reasons why a condition reported
with a POA indicator of ``N'' or ``U'' would not result in a MS-DRG
reassignment.
In summary, Chart I below demonstrates there were a total of
214,785 discharges with a previously considered candidate HACs reported
as a secondary diagnosis. Of those 60,538 discharges were reported with
a POA indicator of ``N'' or ``U.'' The total number of discharges that
could have resulted in MS-DRG reassignments is 3,768.
Chart I--Previously Considered ``Candidate'' HAC Discharge Frequencies--October 2009 Through September 2010
----------------------------------------------------------------------------------------------------------------
Discharges with this Discharges with this Cases that could change
condition as secondary condition not present on MS-DRG due to
diagnosis \2\ Admission (POA = ``N'' previously considered
Previously considered HAC -------------------------- or ``U'') \3\ candidate HAC \4\
condition ---------------------------------------------------
Number Percent Number Percent Number Percent
(Column A) (Column B) (Column C) (Column D) (Column E) (Column F)
----------------------------------------------------------------------------------------------------------------
1. Clostridium Difficile- 90,243 0.89 29,722 32.94 830 2.79
Associated Disease (CDAD)........
2. Delirium....................... 757 0.01 190 25.10 14 7.37
3. Legionnaire's Disease.......... 426 0.00 29 6.81 3 10.34
4. Staphylococcus aureus 24,288 0.24 5,549 22.85 97 0.02
Septicemia.......................
5. Methicillin-Resistant 72,287 0.71 2,288 3.17 0 0.00
Staphylococcus aureus............
6. Iatrogenic Pneumothorax........ 22,506 0.22 19,596 87.07 2,821 14.40
7. Ventilator-Associated Pneumonia 4,278 0.04 3,164 73.96 3 0.09
-----------------------------------------------------------------------------
Total \1\..................... 214,785 ........... 60,538 ........... 3,768 ...........
----------------------------------------------------------------------------------------------------------------
\1\ Discharges can appear in more than one row.
\2\ Percent computed relative to total cases ``at risk,'' which is 10,189,168 for all candidate conditions.
\3\ Percent computed relative to discharges with condition as a secondary diagnosis.
\4\ Percent computed relative to discharges with condition as a secondary diagnosis and identified as a
previously considered HAC (that is, coded as not present on admission).
Source: RTI Analysis of MedPAR IPPS Claims, October 2009 through September 2010.
j. Current and Previously Considered Candidate HACs--RTI Report on
Evidence-Based Guidelines
The RTI program evaluation includes an annual report that provides
references for all evidence-based guidelines available for each of the
selected and previously considered candidate HACs that provide
recommendations for the prevention of the corresponding conditions.
Guidelines were primarily identified using the AHRQ National Guidelines
Clearing House (NGCH) and the CDC, along with relevant professional
societies. Guidelines published in the United States were used, if
available. In the absence of U.S. guidelines for a specific condition,
international guidelines were included.
Evidence-based guidelines that included specific recommendations
for the prevention of the condition were identified for each of the 10
selected conditions. In addition, evidence-based guidelines were also
found for the previously considered candidate conditions.
RTI prepared the annual report to summarize its findings regarding
evidence-based guidelines, which can be found on the Web site at:
http://www.rti.org/reports/cms.
k. Final Policy Regarding Current HACs and Previously Considered
Candidate HACs
We believe that the RTI analysis summarized above does not provide
additional information that would require us to change our previous
determinations regarding either current HACs (as described in section
II.F.2. of this preamble) or previously considered candidate HACs in
the FY 2008 IPPS final rule with comment period (72 FR 47200 through
47218), the FY 2009 IPPS final rule (73 FR 48471 through 48491), and
the FY 2010 IPPS/RY 2010 LTCH final rule (74 FR 43782 through 43785).
We note that we are finalizing revisions to the Falls and Trauma HAC
category, Surgical Site Infection Following Certain Bariatric
procedures and DVT/PE Following Certain Orthopedic Procedures HAC
categories as discussed in section II.F.2. of this preamble. (We also
note that, as discussed in section II.F.3.b. of this preamble, we are
not contemplating changing our current policy regarding the treatment
of the ``U'' POA indicator.) However, we continue to encourage public
dialogue about refinements to the HAC list.
We refer readers to section II.F.6. of the FY 2008 IPPS final rule
with comment period (72 FR 47202 through 47218) and to section II.F.7.
of the FY 2009 IPPS final rule (73 FR 48474 through 48491) for detailed
discussion supporting our determination regarding each of these
conditions.
G. Changes to Specific MS-DRG Classifications
In the FY 2012 IPPS/LTCH PPS proposed rule (76 FR 25816), we
invited public comment on each of the MS-DRG classification proposed
changes described below, as well as our proposals to maintain certain
existing MS-DRG classifications, which are also discussed below. In
some cases, we proposed changes to the MS-DRG classifications based on
our analysis of claims data. In other cases, we proposed to maintain
the existing MS-DRG classification based on our analysis of
[[Page 51523]]
claims data. Below, we summarize the public comments that we received,
if any, on our proposals, present our responses, and state our final
policies.
1. Pre-Major Diagnostic Categories (Pre-MDCs)
a. Noninvasive Mechanical Ventilation
We received a request from the National Association for Medical
Direction of Respiratory Care (NAMDRC) which suggested that we create a
new MS-DRG for patients with certain respiratory conditions who receive
noninvasive mechanical ventilation (NIV). The requestor stated that
patients who receive NIV are almost always placed within an intensive
care unit (ICU) or an emergency department and use the resources
available in those areas. The requestor recommended that this new MS-
DRG recognize current practice and allow for appropriate reimbursement
for the technical complexity and monitoring required for NIV as a form
of acute life support. According to the requestor, NIV has evolved to
become first-line supportive therapy for several forms of acute
respiratory failure. Lastly, the requestor recommended that the new MS-
DRG identify NIV usage of approximately 6 to 12 hours to account for
the ``legitimate but very short term use of this therapy.''
Historically, the concept of mechanical ventilation for critically
ill patients included establishment of an artificial airway,
invasively, through endotracheal intubation or a tracheostomy.
According to the requestor, a significant portion of these patients can
now be treated through noninvasive mechanical ventilation with the use
of a face or nasal mask. In the ICD-9-CM classification system, NIV is
described by procedure code 93.90 (Noninvasive mechanical ventilation),
while invasive mechanical ventilation is described by procedure codes
96.70 (Continuous invasive mechanical ventilation of unspecified
duration), 96.71 (Continuous invasive mechanical ventilation for less
than 96 consecutive hours), and 96.72 (Continuous invasive mechanical
ventilation for 96 consecutive hours or more). The requestor submitted
external data to illustrate trends in NIV use over the past decade.
These data were derived from a survey conducted during 2002-2003 of
several hospitals located in Massachusetts and Rhode Island. The
requestor believed that these data indicate patients with exacerbation
of chronic obstructive pulmonary disease (COPD), acute pulmonary edema,
or worsening congestive heart failure are successfully managed with
NIV.
For the FY 2012 IPPS/LTCH PPS proposed rule, we analyzed FY 2010
MedPAR claims data that are representative of the respiratory
conditions the requestor identified when reported with NIV. We found 14
MS-DRGs reporting procedure code 93.90 using the above specifications.
The MS-DRGs are as follows:
Pre-MDC MS-DRGs:
MS-DRG 003 (ECMO or Tracheostomy with Mechanical Ventilation
96+ Hrs or PDX Except Face, Mouth & Neck with Major O.R.)
MS-DRG 004 (Tracheostomy with Mechanical Ventilation 96+ Hrs
or PDX Except Face, Mouth & Neck without Major O.R.)
MS-DRGs:
MS-DRG 189 (Pulmonary Edema & Respiratory Failure)
MS-DRG 190 (Chronic Obstructive Pulmonary Disease with MCC)
MS-DRG 191 (Chronic Obstructive Pulmonary Disease with CC)
MS-DRG 192 (Chronic Obstructive Pulmonary Disease without CC/
MCC)
MS-DRG 204 (Respiratory Signs & Symptoms)
MS-DRG 207 (Respiratory System Diagnosis with Ventilator
Support 96+ Hours)
MS-DRG 208 (Respiratory System Diagnosis with Ventilator
Support <96 Hours)
MS-DRG 222 (Cardiac Defibrillator Implant with Cardiac
Catheterization with AMI/HF/Shock with MCC)
MS-DRG 223 (Cardiac Defibrillator Implant with Cardiac
Catheterization with AMI/HF/Shock without MCC)
MS-DRG 291 (Heart Failure & Shock with MCC)
MS-DRG 292 (Heart Failure & Shock with CC)
MS-DRG 293 (Heart Failure & Shock without CC/MCC)
As shown in the list above and in the chart below, the MS-DRGs
identified also include those that describe invasive mechanical
ventilation. The ICD-9-CM coding convention instructs the reporting of
both types of mechanical ventilation when patients are admitted on
noninvasive mechanical ventilation that subsequently requires invasive
mechanical ventilation therapy.
The data demonstrate that, in certain MS-DRGs, for example, MS-DRGs
003, 004, and 222 that the cases with NIV primarily have shorter
lengths of stay and lower average costs compared to all the cases in
those MS-DRGs. Alternatively, the data for MS-DRGs 189, 190, 191, and
192 demonstrate that the cases with NIV have an increased length of
stay and higher average costs, but a relatively low volume compared to
all the cases in those MS-DRGs. Combining the current surgical and
medical MS-DRGs into a single, new MS-DRG would include noninvasive
mechanical ventilation cases with a wide range of costs for several
indications with varying levels of severity. The average costs for
these cases range from a low of $5,794 in MS-DRG 293 to a high of
$95,940 in MS-DRG 003. In the proposed rule, we indicated that we
believe the cases are more appropriately assigned and reimbursed in the
MS-DRGs to which they are currently assigned.
----------------------------------------------------------------------------------------------------------------
Average length
MS-DRG Number of cases of stay Average costs
----------------------------------------------------------------------------------------------------------------
MS-DRG 003--All cases..................................... 18,223 34.7 $103,492
MS-DRG 003--Cases with code 93.90 without code 96.70, 58 33.3 95,940
96.71, or 96.72..........................................
MS-DRG 004--All cases..................................... 19,599 25.79 63,022
MS-DRG 004--Cases with code 93.90 without code 96.70, 170 25.43 58,500
96.71, or 96.72..........................................
MS-DRG 189--All cases..................................... 87,668 5.36 8,317
MS-DRG 189--Cases with code 93.90 without code 96.70, 22,023 6.07 10,383
96.71, or 96.72..........................................
MS-DRG 190--All cases..................................... 130,731 5.30 7,140
MS-DRG 190--Cases with code 93.90 without code 96.70, 8,450 6.78 11,207
96.71 or 96.72...........................................
MS-DRG 191--All cases..................................... 135,851 4.49 6,236
MS-DRG 191--Cases with code 93.90 without code 96.70, 4,563 5.41 8,819
96.71 or 96.72...........................................
MS-DRG 192--All cases..................................... 115,153 3.52 4,621
MS-DRG 192--Cases with code 93.90 without code 96.70, 2,334 4.25 6,803
96.71 or 96.72...........................................
MS-DRG 204--All cases..................................... 21,049 2.61 4,310
MS-DRG 204--Cases with code 93.90 without code 96.70, 265 4.17 7,591
96.71 or 96.72...........................................
MS-DRG 207--All cases..................................... 32,752 14.61 32,897
[[Page 51524]]
MS-DRG 207--Cases with code 93.90 without code 96.70, 0 0 0
96.71 or 96.72...........................................
MS-DRG 208--All cases..................................... 67,724 6.98 14,742
MS-DRG 208--Cases with code 93.90 without code 96.70, 0 0 0
96.71 or 96.72...........................................
MS-DRG 222--All cases..................................... 2,279 11.98 57,478
MS-DRG 222--Cases with code 93.90 without code 96.70, 52 11.79 55,011
96.71 or 96.72...........................................
MS-DRG 223--All cases..................................... 3,230 6.17 41,754
MS-DRG 223--Cases with code 93.90 without code 96.70, 19 11.05 47,064
96.71 or 96.72...........................................
MS-DRG 291--All cases..................................... 170,399 6.05 9,585
MS-DRG 291--Cases with code 93.90 without code 96.70, 14,274 6.95 12,320
96.71 or 96.72...........................................
MS-DRG 292--All cases..................................... 220,031 4.72 6,584
MS-DRG 292--Cases with code 93.90 without code 96.70, 5,171 5.58 9,180
96.71 or 96.72...........................................
MS-DRG 293--All cases..................................... 98,134 3.20 4,410
MS-DRG 293--Cases with code 93.90 without code 96.70, 1,381 3.43 5,794
96.71 or 96.72...........................................
----------------------------------------------------------------------------------------------------------------
As mentioned in the requestor's comments, and our clinical advisors
agree, NIV encompasses a broad range of interventions and utilizes
periods of time that range from a few hours to a few days of continuous
chronic use. Resource requirements are vastly different for the various
intended indications. For example, as also noted by the requestor,
respiratory failure can have many forms. Our clinical advisors provided
three subsets of patients as an example: Those that are given oxygen
support, those that are given pressure (rate) support, and those that
are intubated. There is overlap between the three subsets in that a
patient may require one, two, or all three types of therapy and there
are multiple options for any given patient. Our clinical advisors
stated that these various subsets of patients can require significantly
different resources. Lastly, respiratory failure reflects the severity
of the diagnosis (it is a complication) while NIV is a therapeutic
option. Unlike a major surgical intervention where the intervention
creates morbidity, NIV merely reflects the severity of the underlying
respiratory failure.
The requestor further noted in its comments that a significant
number of patients who receive NIV fail this therapy and must be
intubated and subsequently placed on a ventilator. However, those
patients who require both noninvasive and invasive mechanical
ventilation are already accounted for in the invasive mechanical
ventilation MS-DRGs. Similar to patients with respiratory failure,
patients with heart failure and shock have a comparable severity of
illness where each condition reflects the severity of the diagnosis (it
is a complication). Therefore, the cost is already reflected in the
high resource expenditure estimates for MS-DRGs 222, 223, 291, 292, and
293, as are all other severity-correlated resource costs.
In conclusion, we indicated in the proposed rule that we believe
that the data do not support the creation of a single MS-DRG to
identify NIV cases. As stated previously, the average costs for the NIV
cases range from a low of $5,794 in MS-DRG 293 to a high of $95,940 in
MS-DRG 003. If created, this single MS-DRG would include patients with
a wide range in average costs. We believe the cases are more
appropriately captured in their current MS-DRGs. In addition to the
clinical points raised by our clinical advisors and outlined above, the
volume and length of stay data for cases where NIV was reported with
the specified respiratory conditions further support their present MS-
DRG assignments. Therefore, we did not propose to create a new MS-DRG
for patients receiving NIV. We invited public comment on our proposal
not to create a new MS-DRG for patients receiving NIV for FY 2012.
Comment: Several commenters agreed with CMS' proposal to not create
a new MS-DRG for patients receiving NIV for FY 2012. One commenter did
not have a position on whether or not a new MS-DRG should be created
for patients receiving noninvasive mechanical ventilation. However, the
commenter was concerned that reported hospital data may be incomplete.
The commenter indicated that procedure code 93.90 (Noninvasive
mechanical ventilation) is most likely underreported or not reported
consistently because it is not required for reporting purposes. Another
commenter stated that the data analysis performed on patients receiving
NIV appeared to be supported by the current MS-DRG assignment.
Therefore, the commenter agreed with the proposal not to create a new
MS-DRG. This commenter also urged CMS to consider the Uniform Hospital
Discharge Data Set (UHDDS) definition of a ``reportable condition'' in
future analyses. This commenter noted that the UHDDS requires all
significant procedures to be reported and that Medicare requires the
reporting of any procedure that affects payment, whether or not it
meets the definition of significant procedure. This commenter further
noted that procedure code 93.90 is not considered significant by the
UHDDS definition nor does it affect payment.
Response: We appreciate the commenters' support of our proposal to
not create a new MS-DRG for patients receiving NIV for FY 2012. We
agree with the commenters that procedure code 93.90 is likely not
reported consistently and, therefore, the data included in evaluating
the request may be incomplete. We encourage complete and accurate
reporting of ICD-9-CM codes on each admission. As discussed in section
II.G.13.b. of this final rule, we have expanded our ability to accept
and process up to 25 diagnosis codes and 25 procedure codes with the
implementation of 5010. We agree with the commenters who state that the
current data do not support a new MS-DRG for patients receiving NIV.
We also agree with the commenter that NIV (procedure code 93.90) is
not considered to be a significant procedure under UHDDS definitions
and does not affect payment under Medicare policy. UHDDS definitions
are used by hospitals to report inpatient data elements in a
standardized manner. For further information regarding UHDDS data
elements and their definitions, we refer readers to the July 31, 1985
Federal Register (50 FR 31038 through 31040) and the Internet Web site
at: http://www.ncvhs.hhs.gov/ncvhsr1.htm.
Comment: The organization that submitted the original request to
create a new MS-DRG for NIV expressed appreciation to CMS for
considering their request and for providing data that was unavailable
to them at the time they submitted their original request. The
commenter also acknowledged the potential for underreporting of NIV
(procedure code 93.90). However, the commenter specifically asked to
further
[[Page 51525]]
refine their original request based on the data that were displayed in
the FY 2012 IPPS/LTCH PPS proposed rule (76 FR 25818). The commenter
suggested that CMS now limit consideration of a new MS-DRG for NIV to
only the data that were displayed for 4 of the 14 MS-DRGS analyzed in
response to their original request. The commenter asked CMS to now only
focus on the data that was provided for the following MS-DRGs:
MS-DRG 189 (Pulmonary Edema & Respiratory Failure)
MS-DRG 190 (Chronic Obstructive Pulmonary Disease with MCC)
MS-DRG 191 (Chronic Obstructive Pulmonary Disease with CC)
MS-DRG 192 (Chronic Obstructive Pulmonary Disease without
CC/MCC)
The commenter recommended that CMS utilize respiratory failure,
pulmonary edema, and chronic obstructive pulmonary disease as diagnoses
that, when present with NIV, define the structure of a new NIV MS-DRG.
Response: We acknowledge the commenter's request that we now
consider a refined request that focuses on only 4 of the 14 MS-DRGs
originally analyzed. However, due to time constraints, we were unable
to conduct the necessary analysis for evaluation. We would need to
perform a new and separate analysis with exact specifications that were
not provided by the commenter in their modified request before we could
make a final determination. For example, there are numerous ICD-9-CM
codes that describe respiratory failure, pulmonary edema, and chronic
obstructive pulmonary disease. The commenter did not specify the exact
codes they believe would warrant this modified MS-DRG when reported
with procedure code 93.90 (NIV) for us to conduct a thorough analysis
in time to include our evaluation in this final rule.
Therefore, after consideration of public comments we received, we
are finalizing our proposal to not create a new MS-DRG for NIV for FY
2012.
b. Debridement With Mechanical Ventilation Greater Than 96 Hours With
Major Operating Room (O.R.) Procedure
We received a comment concerning the use of excisional debridement
in cases with complications that lead to the need for extended
mechanical ventilation. The commenter stated that patients undergoing
procedures such as excisional debridement may also develop extensive
complications such as respiratory failure and sepsis. The commenter
indicated that these patients tend to use significant resources. The
commenter stated that these cases are currently assigned to MS-DRG 207
(Respiratory System Diagnosis with Ventilator Support 96+ Hours) or MS-
DRG 870 (Septicemia with or Severe Sepsis with Mechanical Ventilation
96+ Hours). The commenter expressed a concern that the operating room
(OR) procedure of the excisional debridement was not fully recognized
through either of these two medical MS-DRGs. The commenter requested
that a new MS-DRG be created that would include mechanical ventilation
of greater than 96 hours with the presence of an additional major OR
procedure.
We agree that patients with long-term mechanical ventilation
greater than 96 hours and a major OR procedure utilize extensive
resources. However, we point out that these patient cases are not
currently assigned to MS-DRG 207 or MS-DRG 870 as the commenter stated.
Many of these long-term mechanical ventilation patient cases are
instead assigned to MS-DRG 003 (ECMO or Tracheostomy with Mechanical
Ventilation 96+ Hours or PDX, Excluding Face, Mouth & Neck with Major
Operating Room Procedure). Cases that require mechanical ventilation
for greater than 96 hours, that have a tracheostomy performed, and that
have a procedure on the major O.R. list (including excisional
debridement) are assigned to MS-DRG 003. We specifically created MS-DRG
003 to capture these complicated patients on long-term mechanical
ventilation who also have a major O.R. procedure. Therefore, in the FY
2012 IPPS/LTCH PPS proposed rule, we did not propose to create a second
MS-DRG to capture these patients. We welcomed public comments on our
proposal not to create a new MS-DRG for these patients for FY 2012.
Comment: Several commenters supported our proposal not to create a
second MS-DRG to capture patients with mechanical ventilation of
greater than 96 hours with the presence of an additional major OR
procedure. One commenter stated that the limited data and documentation
from the requestor for the creation of a second MS-DRG prohibited them
from evaluating the need for this new MS-DRG.
Response: We agree with the commenters that CMS should not create a
second MS-DRG to capture patients with mechanical ventilation of
greater than 96 hours with the presence of an additional major OR
procedure. MS-DRG 003 (ECMO or Tracheostomy with Mechanical Ventilation
96+ Hours or PDX, Excluding Face, Mouth & Neck with major Operating
Room Procedure) appropriately captures these patients.
After consideration of the public comments we received, we are not
creating a new MS-DRG to capture patients on mechanical ventilation of
greater than 96 hours who also have an additional major OR procedure
for FY 2012.
c. Autologous Bone Marrow Transplant
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50101), effective
October 1, 2011, we deleted MS-DRG 009 (Bone Marrow Transplant) and
created two new MS-DRGs: MS-DRG 014 (Allogeneic Bone Marrow Transplant)
and MS-DRG 015 (Autologous Bone Marrow Transplant). We created new MS-
DRGs 014 and 015 because of differences in costs associated with these
procedures. During the comment period for the FY 2011 IPPS/LTCH PPS
proposed rule, two commenters who supported the proposed
reclassification of the bone marrow transplant MS-DRGs requested
further refinement to account for severity of illness. At that time, we
did not subdivide MS-DRG 014 and MS-DRG 015 based on severity of
illness because they did not meet our criteria for subdivision (75 FR
50102).
As we outlined in our FY 2008 IPPS/LTCH PPS final rule with comment
period (72 FR 47169), in designating an MS-DRG as one that would be
subdivided into subgroups based on the presence of a CC or an MCC, we
developed a set of criteria to facilitate our decision-making process.
The original criteria were based on average charges; we now use average
costs (FY 2007 IPPS final rule, 71 FR 47882). In order to warrant
creation of a CC or an MCC subgroup within a base MS-DRG, the subgroup
must meet all of the following five criteria:
A reduction in variance of cost of at least 3 percent.
At least 5 percent of the patients in the MS-DRG fall
within the CC or MCC subgroup.
At least 500 cases are in the CC or MCC subgroup.
There is at least a 20-percent difference in average cost
between subgroups.
There is a $2,000 difference in average cost between
subgroups.
For the FY 2012 IPPS/LTCH PPS proposed rule, we examined FY 2010
MedPAR claims data for these newly created MS-DRGs, and based on these
criteria, we identified MS-DRG 015 as a possible MS-DRG that would
require further subdivision. MS-DRG 014 was not identified, as this MS-
DRG did not meet the criteria stated above for possible subdivision.
Autologous bone
[[Page 51526]]
marrow transplantation utilizes the patient's own bone marrow or stem
cells in the treatment of certain cancers and bone marrow diseases.
These procedures restore stem cells that have been destroyed either by
chemotherapy and/or radiation treatment.
In our analysis, we found 1,338 total cases assigned to MS-DRG 015
with average costs of approximately $38,608 and an average length of
stay of approximately 18.8 days. There were 1,092 cases that had a
secondary diagnosis code reported on the claim that was designated as a
CC or an MCC with average costs of approximately $40,974 and an average
length of stay of approximately 19.7 days. There were 246 cases without
a secondary diagnosis code reported on the claim that had a CC or an
MCC designation with average cost of approximately $28,105 and an
average length of stay of approximately 14.6 days. The following table
illustrates our findings:
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 015--All cases............ 1,338 18.8 $38,608
MS-DRG 015--Cases with MCC/CC.... 1,092 19.7 40,974
MS-DRG 015--Cases without MCC/CC. 246 14.6 28,105
------------------------------------------------------------------------
We found that the cases reported with a secondary diagnosis code of
a CC or an MCC were more costly and had a longer average length of stay
than both the overall cases assigned to MS-DRG 015 and the cases
without a CC or an MCC. The cases without a CC or an MCC were less
costly and had a shorter average length of stay than both the cases
with a CC or an MCC and the overall cases assigned to that MS-DRG.
Based on our analysis, all five criteria for a subgroup division were
met, thereby supporting a 2-level severity split for MS-DRG 015.
Therefore, for FY 2012, we proposed to delete MS-DRG 015 and create two
new MS-DRGs:
Proposed MS-DRG 016 (Autologous Bone Marrow Transplant
with MCC/CC); and
Proposed MS-DRG 017 (Autologous Bone Marrow Transplant
without MCC/CC).
We invited public comment on our proposal to delete MS-DRG 015 and
create two new MS-DRGs 016 and 017 for autologous bone marrow
transplant for FY 2012.
Comment: Several commenters supported our proposed changes for a 2-
level severity split for autologous bone marrow transplant cases. One
commenter stated that it appreciated CMS' further refinement to account
for severity of illness as it reflects current experience with
transplant eligible patients who present with a range of comorbidities
and other complicating factors.
Response: We appreciate the support of the commenters.
Comment: One commenter disagrees with our proposed refinement of
MS-DRG 014 to account for severity of illness. The commenter contended
that the recipient patient population for both autologous and
allogeneic transplants is similar and that recognition of the variation
in the patient population for both is warranted. The commenter
requested a re-review of the cost variances for MS-DRG 014 because
allogeneic transplant patients are often treated for similar
comorbidities as autologous transplant patients prior to transplant and
during post transplant care.
Response: As we outlined in the proposed rule (76 FR 25819), to
warrant creation of a CC or MCC subgroup within a base MS-DRG, the
subgroup must meet all of the five criteria. MS-DRG 014 did not meet
the criteria for possible subdivision because at least 500 cases were
not in the CC or MCC subgroup.
After consideration of the public comments we received, we are
finalizing our proposal to delete MS-DRG 015 and to create two new MS-
DRGs: MS-DRG 016 (Autologous Bone Marrow Transplant with CC/MCC); and
MS-DRG 017 (Autologous Bone Marrow Transplant without CC/MCC). We note
that we have amended the final titles of new MS-DRGs 015 and 016 to
place ``CC'' before ``MCC.''
2. MDC 1 (Diseases and Disorders of the Nervous System): Rechargeable
Dual Array Deep Brain Stimulation System
We received a public comment in response to the FY 2011 IPPS/LTCH
PPS proposed rule regarding the MS-DRG assignment for rechargeable dual
array deep brain neurostimulators. In the FY 2011 IPPS/LTCH PPS final
rule (75 FR 50128), we indicated that we considered this comment
outside of the scope of the proposed rule as we did not propose any
changes for these procedures for FY 2011. However, we addressed this
issue in the FY 2012 IPPS/LTCH PPS proposed rule.
Deep brain stimulation is a surgical treatment that involves the
implantation of a neurostimulator, used in the treatment of essential
tremor, Parkinson's disease, dystonia, and chronic pain. The commenter
recommended that CMS assign the combination of procedure codes
representing rechargeable systems for deep brain stimulation therapy,
procedure code 02.93 (Implantation or replacement of intracranial
neurostimulator lead(s)) and procedure code 86.98 (Insertion or
replacement of dual array rechargeable neurostimulator pulse generator)
to MS-DRG 023 (Craniotomy with Major Device Implant/Acute Complex CNS
PDX with MCC or Chemo Implant) and MS-DRG 024 (Craniotomy with Major
Device Implant/Acute Complex CNS PDX without MCC).
The commenter stated that this recommendation would allow all full
system dual array deep brain stimulation cases to be appropriately
grouped to the same MS-DRGs. Currently, procedure codes 02.93 and 86.98
are assigned to MS-DRG 025 (Craniotomy and Endovascular Intracranial
Procedures with MCC), MS-DRG 026 (Craniotomy and Endovascular
Intracranial Procedures with CC), and MS-DRG 027 (Craniotomy and
Endovascular Intracranial Procedures without CC/MCC), while the
procedure codes for the nonrechargeable dual array systems, procedure
codes 02.93 and 86.95 (Insertion or replacement of dual array
neurostimulator pulse generator, not specified as rechargeable), are
already assigned to MS-DRGs 023 and 024. The commenter stated that the
procedures to implant the rechargeable and nonrechargeable dual array
systems are similar clinically as well as comparable in resource
utilization.
For the FY 2012 IPPS/LTCH PPS proposed rule, we analyzed FY 2010
MedPAR data and found a total of 16 full system rechargeable dual array
deep brain stimulation systems reported with procedure codes 02.93 and
86.98 assigned to MS-DRGs 025 through 027. We found one case assigned
to MS-DRG 025 and one case assigned to MS-DRG
[[Page 51527]]
026. The majority of the cases, 14, were assigned to MS-DRG 027, with
average costs of approximately $23,870 and an average length of stay of
approximately 2.2 days. We found that the deep brain stimulation cases
assigned to MS-DRG 027 had higher average costs than the overall cases
assigned to MS-DRG 027 of approximately $14,200. However, the average
length of stay was shorter for these cases than the overall length of
stay for MS-DRG 027 cases of approximately 3.7 days.
We also examined the data for the nonrechargeable dual array
systems to assess the commenter's assumption that both the rechargeable
and nonrechargeable dual array systems are similar in resource use. We
found 155 total nonrechargeable dual array systems (procedure codes
02.93 and 86.95) assigned to MS-DRGs 023 and 024. There were 5 cases
assigned to MS-DRG 023, with average costs of approximately $36,159 and
an average length of stay of approximately 10 days. We found that the
majority of the cases, 150, were assigned to MS-DRG 024, with average
costs of approximately $25,855 and an average length of stay of
approximately 2.2 days. We believe that these data support the
commenter's statement that, for the majority of these cases, the
resource use is similar for both systems.
For comparison purposes, if we proposed the changes that the
commenter suggested, those deep brain stimulation cases currently
assigned to MS-DRG 027 and the one case assigned to MS-DRG 026 (with
average costs of approximately $27, 836) would be reassigned to MS-DRG
024. The average costs of approximately $23,870 of these deep brain
stimulation cases assigned to MS-DRG 027 are similar to the overall
average costs of approximately $23,249 for MS-DRG 024. The one case
assigned to MS-DRG 025 (with average costs of approximately $29,361)
would be reassigned to MS-DRG 023 (with average costs of approximately
$34,168). The following table illustrates our findings:
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 023--All cases............ 4,238 11.8 $34,168
MS-DRG 023--Cases with codes 5 10.0 36,159
02.93 and 86.95.................
MS-DRG 024--All cases............ 1,592 7.6 23, 249
MS-DRG 024--Cases with codes 150 2.2 25,855
02.93 and 86.95.................
MS-DRG 025--All cases............ 11,505 11.0 29,524
MS-DRG 025--Cases with codes 1 2.0 29, 361
02.93 and 86.98.................
MS-DRG 026--All cases............ 9,782 7.0 19,125
MS-DRG 026--Cases with codes 1 3.0 27,836
02.93 and 86.98.................
MS-DRG 027--All cases............ 10,936 3.7 14,200
MS-DRG 027--Cases with codes 14 2.2 23,870
02.93 and 86.98.................
------------------------------------------------------------------------
Based on our findings, in the proposed rule, we indicated that we
believe that the data support reassigning the combination of procedure
codes representing rechargeable systems for deep brain stimulation
therapy, code 02.93 and code 86.98, to MS-DRGs 023 and 024. Our
clinical advisors support this reassignment. Therefore, we proposed to
assign rechargeable dual array systems for deep brain stimulation cases
identified by reporting both procedure codes 02.93 and 86.98 to MS-DRGs
023 and 024 for FY 2012. We invited public comment on our proposal to
assign these cases to MS-DRG 023 and 024 for FY 2012.
Comment: Several commenters supported our proposal to reassign
rechargeable dual array deep brain stimulation cases.
Response: We appreciate the support of the commenters. As stated
above, we believe that the assignment of these cases to MS-DRG 023 and
024 is appropriate.
After consideration of public comments we received, we are adopting
as final our proposal to assign rechargeable dual array systems for
deep brain stimulation cases identified by reporting both procedure
codes 02.93 and 86.98 to MS-DRGs 023 and 024 for FY 2012.
3. MDC 3 (Diseases and Disorders of the Ear, Nose, Mouth, and Throat):
Skull Based Surgeries
We received a request from a commenter recommending that CMS
reclassify skull-based surgical procedures that are currently assigned
to MS-DRGs 135 and 136 (Sinus and Mastoid Procedures with CC/MCC and
without CC/MCC, respectively) and reassign them to MS-DRGs 025, 026,
and 027 (Craniotomy and Endovascular Intracranial Procedures with MCC,
with CC, and without CC/MCC, respectively). The commenter stated that
the current MS-DRG assignment does not reflect the resource utilization
and technical complexity of these difficult procedures when performed
for anterior skull base tumors.
Skull (or cranial) based surgery is performed for a variety of
serious medical conditions including esthesioneuroblastomas, which are
rare, malignant tumors that arise from the epithelium overlying the
olfactory bulb; sinonasal melanomas, which are malignant melanomas that
may develop in the mucosa of the nose and sinuses; and sinonasal
undifferentiated carcinomas, which are rapidly growing malignant tumors
arising in the nasal cavity and/or sinuses. These types of conditions
are generally identified by the following ICD-9-CM diagnosis codes:
160.0 (Malignant neoplasm of nasal cavities)
160.1 (Malignant neoplasm of auditory tube, middle ear, and
mastoid air cells)
160.2 (Malignant neoplasm of maxillary sinus)
160.3 (Malignant neoplasm of ethmoidal sinus)
160.4 (Malignant neoplasm of frontal sinus)
160.5 (Malignant neoplasm of sphenoidal sinus)
160.8 (Malignant neoplasm of other accessory sinuses)
160.9 (Malignant neoplasm of accessory sinus, unspecified)
210.7 (Benign neoplasm of nasopharynx)
212.0 (Benign neoplasm of nasal cavities, middle ear, and
accessory sinuses)
According to the commenter, procedure code 22.63 (Ethmoidectomy)
describes the type of surgery being performed for these patients and is
currently assigned to MS-DRGs 135 and 136.
For the FY 2012 IPPS/LTCH PPS proposed rule, using the FY 2010
MedPAR file, we examined data on
[[Page 51528]]
cases identified by procedure code 22.63 when reported with one of the
above listed diagnosis codes in MS-DRGs 135 and 136. We found a total
of 402 cases in MS-DRG 135 with an average length of stay of 6.30 days
and average costs of $12,869. We found only 23 cases in MS-DRG 135
identified by procedure code 22.63 with one of the diagnosis codes
listed above with an average length of stay of 3.96 days and average
costs of $10,510. In MS-DRG 136, there were a total of 320 cases with
an average length of stay of 2.36 days and average costs of $6,683. We
found only 27 cases in MS-DRG 136 identified by procedure code 22.63
with one of the diagnosis codes listed above with an average length of
stay of 2.04 days and average costs of $6,844. As shown in the table
below, the cases reporting procedure code 22.63 in MS-DRGs 135 and 136
have a lower volume, a shorter length of stay, and primarily lower
average costs compared to all cases in MS-DRGs 135 and 136. As we
indicated in the proposed rule, the data demonstrated that these cases
are appropriately assigned to their current MS-DRG classifications.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 135--All cases............ 402 6.30 $12,869
MS-- DRG 135--Cases with 23 3.96 10,510
procedure code 22.63 and
diagnosis code 160.0 through
160.9 or 210.7 or 212.0.........
MS-DRG 136--All cases............ 320 2.36 6,683
MS-DRG 136--Cases with procedure 27 2.04 6,844
code 22.63 and diagnosis code
160.0 through 160.9 or 210.7 or
212.0...........................
------------------------------------------------------------------------
We also analyzed claims data for MS-DRGs 25 through 27. We
determined that if the cases identified by procedure code 22.63 were to
be reassigned to MS-DRGs 25-27, they would be significantly overpaid.
As shown in the table below, we found that the average costs for these
MS-DRGs range from $14,200 to $29,524.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 025--All cases............ 11,505 10.95 $29,524
MS-DRG 026--All cases............ 9,782 7.00 19,125
MS-DRG 027--All cases............ 10,936 3.71 14,200
------------------------------------------------------------------------
In summary, we indicated in the proposed rule that the data did not
support moving cases with procedure code 22.63 when reported with one
of the previously listed diagnosis codes from MS-DRGs 135 and 136 to
MS-DRGs 25, 26 and 27. We invited public comment on our proposal not to
make any MS-DRG modifications for these codes for FY 2012.
Comment: Several commenters supported our proposal to not make any
revisions to reclassify skull-based surgical procedures that are
currently assigned to MS-DRGs 135 and 136 and reassign them to MS-DRGs
025, 026, and 027.
Response: We appreciate the commenters' support.
After consideration of the public comment we received, we are
finalizing our proposal to not make any modifications for skull-based
surgeries for FY 2012.
4. MDC 5 (Diseases and Disorders of the Circulatory System)
a. Percutaneous Mitral Valve Repair With Implant
Procedure code 35.97 (Percutaneous mitral valve repair with
implant) was created for use beginning October 1, 2010 (FY 2011) after
the concept of a percutaneous valve repair was presented and approved
at the February 2010 ICD-9-CM Coordination and Maintenance Committee
Meeting. Procedure code 35.97 was created at that time to describe the
MitraClip\TM\ device and any other percutaneous mitral valve repair
devices currently on the market. This procedure code is assigned to the
following MS-DRGs: 231 and 232 (Coronary Bypass with PTCA with MCC and
without MCC, respectively); 246 (Percutaneous Cardiovascular Procedure
with Drug-Eluting Stent with MCC or 4+ Vessels/Stents); 247
(Percutaneous Cardiovascular Procedure with Drug-Eluting Stent without
MCC); 248 (Percutaneous Cardiovascular Procedure with Non-Drug-Eluting
Stent with MCC or 4+ Vessels/Stents); 249 (Percutaneous Cardiovascular
Procedure with Non-Drug-Eluting Stent without MCC); 250 (Percutaneous
Cardiovascular Procedure without Coronary Artery Stent or AMI with
MCC); and 251 (Percutaneous Cardiovascular Procedure without Coronary
Artery Stent or AMI without MCC).
According to the Food and Drug Administration's (FDA's) terms of
the clinical trial for MitraClip\TM\, the device is to be implanted in
patients without any additional surgeries performed. Therefore, based
on these terms, we believe that the most likely MS-DRG assignments
would be MS-DRGs 250 and 251, as described above. However, because
procedure code 35.97 has only been in use since October 1, 2010, there
are no claims data in the most recent MedPAR update file with which to
evaluate any alternative MS-DRG assignments. Therefore, we did not
propose to make any MS-DRG changes for procedure code 35.97 for FY
2012. We proposed to keep procedure code 35.97 in its current MS-DRG
assignments. We invited public comment on this proposal.
Comment: Several commenters addressed our proposal. One commenter
supported our proposal not to make any MS-DRG changes in the current
assignment of procedure code 35.97, but also recommended that CMS
review the MS-DRG assignment for FY 2013 when more claims data become
available. In addition, one commenter indicated that it ``* * * has no
objections to CMS' proposed changes to the MS-DRG classifications and
the Medicare Code Editor, which seem reasonable, given the data and
information provided.''
Response: We appreciate the commenters' support and suggestion.
After consideration of the public comments we received, we are
adopting as final without modification our
[[Page 51529]]
proposal to keep procedure code 35.97 (Percutaneous mitral valve repair
with implant) in its current MS-DRG assignments of 231 and 232
(Coronary Bypass with PTCA with MCC and without MCC, respectively); 246
(Percutaneous Cardiovascular Procedure with Drug-Eluting Stent with MCC
or 4+ Vessels/Stents); 247 (Percutaneous Cardiovascular Procedure with
Drug-Eluting Stent without MCC); 248 (Percutaneous Cardiovascular
Procedure with Non-Drug-Eluting Stent with MCC or 4+ Vessels/Stents);
249 (Percutaneous Cardiovascular Procedure with Non-Drug-Eluting Stent
without MCC); 250 (Percutaneous Cardiovascular Procedure without
Coronary Artery Stent or AMI with MCC); and 251 (Percutaneous
Cardiovascular Procedure without Coronary Artery Stent or AMI without
MCC).
In addition, we plan to conduct a review of the MedPAR data for
code 35.97 in our next annual IPPS update cycle (that is, for FY 2013)
to determine if the MS-DRG assignments as listed above are the most
appropriate MS-DRGs for this procedure.
b. Aneurysm Repair Procedure Codes
Thoracic aorta defects, such as aneurysm, dissection, or injury,
are uncommon but serious conditions that may arise from a disease or an
accident. Some patients can be medically managed but most are treated
with surgery. Often these defects result in death if they are not
diagnosed and treated promptly. Currently, there are two techniques
used for repair of aortic defects; both are O.R. procedures performed
in an inpatient hospital setting. These two procedures are described by
ICD-9-CM procedure codes 38.45 (Resection of vessel with replacement,
thoracic vessel) and 39.73 (Endovascular implantation of graft in
thoracic aorta). Both procedure codes 38.45 and 39.73 are currently
assigned to MS-DRGs 237 (Major Cardiovascular Procedures with MCC or
Thoracic Aortic Aneurysm Repair) and 238 (Major Cardiovascular
Procedures without MCC).
We received a request that we consider the reassignment of
procedure codes 38.45 and 39.73 within the MS-DRG structure by removing
the procedure codes from MS-DRGs 237 and 238 and adding them to a more
clinically coherent set of MS-DRGs reflecting higher resource
consumption. The requestors believed that, based on their analysis of
MedPAR claims data of MS-DRGs 237 and 238, the resource utilization of
both the endovascular and open repairs of the abdominal and thoracic
aortas are higher than the overall average resource utilization for the
MS-DRGs to which these procedures are currently assigned. The
requestors also believed that an unusually high number of cases
probably fall into cost outlier status.
For the FY 2012 IPPS/LTCH PPS proposed rule, we reviewed the MedPAR
claims data for these two procedure codes. Our findings are shown in
the following two tables.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 237--All cases............ 20,680 10.03 $34,268
MS-DRG 237--Cases with procedure 1,851 7.73 41,033
code 39.73......................
MS-DRG 237--Cases without 18,829 10.26 33,603
procedure code 39.73............
MS-DRG 238--All cases............ 35,705 4.08 20,597
MS-DRG 238--Cases with procedure 0 0 0
code 39.73......................
MS-DRG 238--Cases without 35,705 4.08 20,597
procedure code 39.73............
------------------------------------------------------------------------
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 237--All cases............ 20,680 10.03 $34,268
MS-DRG 237--Cases with procedure 448 13.29 51,953
code 38.45......................
MS-DRG 237--Cases without 20,234 9.96 33,878
procedure code 38.45............
MS-DRG 238--All cases............ 35,705 4.08 20,597
MS-DRG 238--Cases with procedure 466 7.29 30,219
code 38.45......................
MS-DRG 238--Cases without 35,239 4.03 20,465
procedure code 38.45............
------------------------------------------------------------------------
Our findings of the analysis of the cases with procedure code 39.73
showed that the average costs are substantially higher than those costs
for the cases overall in both MS-DRGs 237 and 238. We found that the
average length of stay for the 1,851 cases identified in MS-DRG 237 is
somewhat lower at 7.73 days than the average length of stay of 10.26
days in cases not containing procedure code 39.73.
Our findings of the analysis of the cases with procedure code 38.45
showed that both the average costs and the average length of stay are
considerably higher than the average costs and the average length of
stay for those cases without procedure code 38.45.
In addition, we reviewed the cases in which both procedure codes
38.45 and 39.73 were documented during the same admission. As can be
seen in the charts below, we found 22 cases in which both procedure
codes 38.45 and 39.73 were reported. Therefore, the sum of the values
in the next two charts below will differ from the charts above because
the cases containing both procedure codes have been removed and the
data have been reworked.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 237--All cases............ 20,680 10.03 $34,268
MS-DRG 237--Cases with procedure 1,829 7.68 40,862
code 39.73 and without procedure
code 38.45......................
MS-DRG 237--Cases with procedure 424 13.36 51,783
code 38.45 and without procedure
code 39.73......................
MS-DRG 238--All cases............ 35,705 4.08 20,597
[[Page 51530]]
MS-DRG 238--Cases with procedure 0 0 0
code 39.73 and without procedure
code 38.45......................
MS-DRG 238--Cases with procedure 466 7.29 30,219
code 38.45 and without procedure
code 39.73......................
------------------------------------------------------------------------
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 237--All cases............ 20,680 10.03 $34,268
MS-DRG 237--Cases with procedure 22 11.86 55,243
code 38.45 and with procedure
code 39.73......................
MS-DRG 237--Cases without 18,405 10.19 33,184
procedure code 38.45 or
procedure code 39.73............
MS-DRG 238--All cases............ 35,705 4.08 20,597
MS-DRG 238--Cases with procedure 0 0 0
code 38.45 and with procedure
code 39.73......................
MS-DRG 238--Cases without 35,239 4.03 20,465
procedure code 38.45 or
procedure code 39.73............
------------------------------------------------------------------------
We found in our analysis of the claims data for cases with both
procedure codes 38.45 and 39.73 that the average costs are
substantially higher than those costs for the cases overall in MS-DRG
237. In addition, we found that the average length of stay for the 22
cases with both procedure codes 38.45 and 39.73 is higher at 11.86 days
than the average length of stay of 10.03 days for all cases in MS-DRG
237.
Our analysis of the claims data for the procedure codes in MDC 5
showed that procedure code 38.45 is also assigned to MS-DRGs 228 (Other
Cardiothoracic Procedures with MCC), 229 (Other Cardiothoracic
Procedures with CC), and 230 (Other Cardiothoracic Procedures without
CC/MCC) when it occurs in combination with procedure code 38.44
(Resection of vessel with replacement, aorta, abdominal). Procedure
code 39.73 is not assigned to MS-DRGs 228 through 230, and review of
the data showed that there were no cases that had been reported in
these MS-DRGs.
The table below shows our findings of the average costs and the
average length of stay for procedure code 38.45 reported in combination
with procedure code 38.44 in MS-DRGs 228 through 230 and the average
costs and the average length of stay in all cases in MS-DRGs 228
through 230 when both procedure codes 38.45 and 38.44 are not assigned.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 228--All cases............ 2,084 13.79 $49,488
MS-DRG 228--Cases with procedure 276 15.18 56,246
code 38.45 and procedure code
38.44...........................
MS-DRG 228--Cases without 1,808 13.58 48,456
procedure code 38.45 and without
procedure code 38.44............
MS-DRG 229--All cases............ 2,354 8.31 31,148
MS-DRG 229--Cases with procedure 157 10.68 37,723
code 38.45 and procedure code
38.44...........................
MS-DRG 229--Cases without 2,197 8.14 30,678
procedure code 38.45 and without
procedure code 38.44............
MS-DRG 230--All cases............ 628 5.45 24,236
MS-DRG-230--Cases with procedure 34 7.18 27,054
code 38.45 and procedure code
38.44...........................
MS-DRG 230--Cases without 594 5.35 24,075
procedure code 38.45 and without
procedure code 38.44............
------------------------------------------------------------------------
Our findings show that both the average length of stay and average
costs are higher in those cases containing procedure code 38.45 than
those cases without this procedure code in MS-DRGs 228 through 230.
We then analyzed the 1,851 cases containing procedure code 39.73 in
MS-DRGs 237 and 238 and the 912 cases containing procedure code 38.45
in MS-DRGs 237 and 238 to determine if they would meet the established
criteria for a 3-way severity of illness split. This criterion is
described in section III.G.1.c. of this preamble. The chart below shows
our findings, with MS-DRG 237 acting as a severity of illness proxy for
all cases, as there were no cases in MS-DRG 238. In the chart, the
extensions ``-1,'' ``-2,'' and ``-3'' correspond to severity levels,
with ``-1'' representing cases with MCC, ``-2'' representing cases with
CC, and ``-3'' representing cases without CC/MCC.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 237-1--All cases.......... 20,680 10.03 $34,268
MS-DRG 237-1--Cases with 637 12.14 57,834
procedure code 39.73............
MS-DRG 237-1--Cases with 446 13.29 51,954
procedure code 38.45............
MS-DRG 237-2--All cases.......... 17,356 5.73 22,083
MS-DRG 237-2--Cases with 659 6.89 38,673
procedure code 39.73............
MS-DRG 237-2--Cases with 353 8.14 31,480
procedure code 38.45............
MS-DRG 237-3--All cases.......... 18,349 2.52 19,183
MS-DRG 237-3--Cases with 555 3.65 27,993
procedure code 39.73............
MS-DRG 237-3--Cases with 113 6.30 26,280
procedure code 38.45............
------------------------------------------------------------------------
[[Page 51531]]
Our next step was to analyze the claims data for the cases in the
clinically coherent MS-DRGs to which we proposed to move these cases.
These six MS-DRGs are: 216 (Cardiac Valve & Other Major Cardiothoracic
Procedures with Cardiac Catheterization with MCC); 217 (Cardiac Valve &
Other Major Cardiothoracic Procedures with Cardiac Catheterization with
CC); 218 (Cardiac Valve & Other Major Cardiothoracic Procedures with
Cardiac Catheterization without CC/MCC); 219 (Cardiac Valve & Other
Major Cardiothoracic Procedures without Cardiac Catheterization with
MCC), 220 (Cardiac Valve & Other Major Cardiothoracic Procedures
without Cardiac Catheterization with CC); and 221 (Cardiac Valve &
Other Major Cardiothoracic Procedures without Cardiac Catheterization
without CC/MCC). For the sake of the grouping algorithm, procedure
codes 39.73 and 38.45 must also be added to MS-DRGs 216 through 219.
However, if these codes are documented in cases in which a cardiac
catheterization occurs, they will be ``trumped'' by those
catheterizations. Therefore, when we reviewed the data in order to make
length of stay and cost comparisons, we only used the three MS-DRGs to
which procedure codes 39.73 and 38.45 would appear without cardiac
catheterization; that is MS-DRGs 219, 220, and 221. Our findings
describing these three MS-DRGs are displayed in the following chart:
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 219....................... 12,805 12.76 $51,399
MS-DRG 220....................... 15,988 7.65 34,270
MS-DRG 221....................... 4,043 5.90 28,974
------------------------------------------------------------------------
Our evaluation of the severity levels in the cases containing
procedure codes 39.73 and 38.45 using the proxy MS-DRGs 237-1, 237-2,
and 237-3 compared to the claims data in the table above with MS-DRGs
219 through 221 demonstrates that the cases are similar in resource
consumption. In addition, the cases are clinically coherent.
We indicated in the proposed rule that, by moving procedure code
38.45 to MS-DRGs 216 through 221, we did not believe that there is a
need for combination codes 38.45 plus 38.44 to be specifically assigned
to MS-DRGs 228, 229, and 230. Because MS-DRGs 216 through 221 are
higher in the surgical hierarchy for MDC 5 than MS-DRGs 228 through
230, the result of the proposal would be that either procedure code
38.45 by itself or in combination with procedure code 38.44 will always
be assigned to MS-DRGs 216 through 221. We indicated that when reported
alone, under this policy, procedure code 38.44 would continue to be
assigned to MS-DRGs 237 and 238, as it has been in the past.
Therefore, for FY 2012, we proposed to remove procedure codes 38.45
and 39.73 from MS-DRGs 237 and 238 and to add these codes to MS-DRGs
216, 217, 218, 219, 220, and 221 based on our findings of similar
resource consumption and clinical coherence. To conform to this
proposed change, we also proposed to revise the title of MS-DRG 237
(Major Cardiovascular Procedures with MCC or Thoracic Aortic Aneurysm
Repair) by removing the terms ``or Thoracic Aortic Aneurysm Repair.''
Therefore, the new proposed title of MS-DRG 237 was ``Major
Cardiovascular Procedures with MCC.'' We invited public comment on
these proposals.
Comment: Several commenters supported the proposed changes.
Response: We appreciate the commenters' support.
Therefore, as we proposed, we are adopting our proposed changes as
final. In summary, we are removing procedure codes 38.45 and 39.73 from
MS-DRGs 237 and 238 and adding these two codes to the following six MS-
DRGs: 216; 217; 218; 219; 220; and 221. In addition, we are revising
the title of MS-DRG 237 to read ``Major Cardiovascular Procedures with
MCC.'' The title of MS-DRG 238 (Major Cardiovascular Procedures without
MCC) will remain the same.
5. MDC 8 (Diseases and Disorders of the Musculoskeletal System and
Connective Tissue)
a. Artificial Discs
In response to the FY 2011 IPPS/LTCH PPS proposed rule, we received
a public comment that was outside of the scope of any proposal in that
proposed rule. The commenter urged CMS to reassign procedure code 84.62
(Insertion of total spinal disc prosthesis, cervical) from MS-DRG 490
(Back and Neck Procedures Except Spinal Fusion with CC/MCC or Disc
Device/Neurostimulator) into MS-DRGs 471 through 473 (Cervical Spinal
Fusion with MCC, with CC, and without CC/MCC, respectively). In
addition, the commenter requested that CMS reassign procedure code
84.65 (Insertion of total spinal disc prosthesis, lumbosacral) from MS-
DRG 490 (Back and Neck Procedures Except Spinal Fusion with CC/MCC or
Disc Device/Neurostimulator) to MS-DRGs 459 and 460 (Spinal Fusion
Except Cervical with MCC and without MCC, respectively). However, the
commenter also provided an alternative option to reassigning the
procedure codes to different MS-DRGs. The commenter suggested the
creation of a new, separate MS-DRG for the two artificial disc
procedures if reassignment to the fusion MS-DRGs was not feasible.
We refer the reader to the FY 2008 IPPS proposed rule and final
rule with comment period (72 FR 24731 through 24735 and 47226 through
47232) for discussion on the comprehensive evaluation of all the spinal
DRGs in the development of the MS-DRG classification system. The
modifications made to the spinal DRGs for FY 2008 recognized the
similar utilization of resources, differences in levels of severity,
and the complexity of the services being performed on patients
undergoing the various types of spinal procedures.
For the FY 2012 IPPS/LTCH PPS proposed rule, we analyzed FY 2010
MedPAR claims data for procedure codes 84.62 and 84.65 in MS-DRG 490
and compared those results to the claims data for MS-DRGs 459, 460,
471, 472, and 473. We found a total of 19,840 cases in MS-DRG 490 with
an average length of stay of 4.24 days and average costs of $11,940. As
displayed in the chart below, we found 97 cases reporting procedure
code 84.62, with an average length of stay of 1.80 days and average
costs of $13,194 in MS-DRG 490. We also found 35 cases reporting
procedure code 84.65, with an average length of stay of 2.91 days and
average costs of $20,753. While average costs for the artificial disc
cases were slightly higher ($1,254 for procedure code 84.62 and $8,813
for procedure code 84.65) compared to the average cost for all cases in
MS-DRG 490, the artificial disc cases were of extremely low volume and
reflected shorter lengths of stay
[[Page 51532]]
compared to all the cases in MS-DRG 490.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 459--All cases............ 3,650 8.92 $40,218
MS-DRG 460--All cases............ 60,865 3.75 25,268
MS-DRG 471--All cases............ 2,686 8.92 29,837
MS-DRG 472--All cases............ 8,586 3.78 18,494
MS-DRG 473--All cases............ 24,323 1.80 13,775
MS-DRG 490--All cases............ 19,840 4.24 11,940
MS-DRG 490--Cases with code 84.62 97 1.80 13,194
MS-DRG 490--Cases with code 84.65 35 2.91 20,753
------------------------------------------------------------------------
We recognized the disparity in average costs for cases reporting
the insertion of a cervical or lumbar artificial disc in MS-DRG 490
compared to all the cases in that MS-DRG. However, we did not believe
this supports reassignment of procedure codes 84.62 and 84.65 to the
MS-DRGs for spinal fusion as the commenter requested. Even with the
disparity in costs, clinically, the insertion of an artificial disc is
not a spinal fusion. Therefore, reassignment of the artificial disc
cases to the fusion MS-DRGs would be clinically inappropriate. In
addition, for certain Medicare populations, the insertion of an
artificial disc is considered a noncovered procedure.
As stated earlier, the commenter also provided an alternative
option to reassigning procedure codes 84.62 and 84.65. The commenter
suggested the creation of a new, separate MS-DRG for the two artificial
disc procedures if reassignment to the fusion MS-DRGs was not feasible.
In our evaluation of the claims data and as shown above in the data
chart, the artificial disc cases are of extremely low volume;
therefore, we do not believe the findings warrant the creation of a
separate MS-DRG.
We invited public comment on our proposal not to reassign procedure
code 84.62 from MS-DRG 490 to MS-DRGs 471 through 473 and procedure
code 84.65 from MS-DRG 490 to MS-DRGs 459 and 460. We also invited
public comment on our proposal not to create a new, separate MS-DRG for
artificial disc procedures (codes 84.62 and 84.65) for FY 2012.
Comment: Several commenters supported our proposal not to create a
new MS-DRG for artificial disc procedures, as well as not to reassign
the procedure codes for insertion of a cervical or lumbar artificial
disc (codes 84.62 and 84.65) to the fusion MS-DRGs (459 and 460 and 471
through 473). One commenter agreed with our statement that the
insertion of an artificial disc is not the same as a fusion and should
not be included in the fusion MS-DRGs. Another commenter agreed that
reassignment of the artificial discs to the fusion MS-DRGs does not
appear to be a clinically appropriate classification despite
comparative costs. This commenter believed that limitations in the
data, such as the low volume of cases, may be due to artificial discs
being a noncovered procedure for certain Medicare populations and
recommended revisiting our analysis for a new separate MS-DRG if the
coverage policy is revised in the future.
Response: We appreciate the commenters' support for our proposals.
We also acknowledge the commenters recommendation to conduct further
analysis for total disc replacement procedures should the coverage
policy pertaining to certain Medicare populations be modified in the
future.
Comment: One commenter expressed appreciation to CMS for reviewing
the current MS-DRG assignment for total disc replacement (TDR)
procedures involving the cervical and lumbar areas. However, the
commenter disagreed with the proposed rule analysis, stating it was
limited to only the MedPAR database. The commenter believed that
information from two publicly available databases, the Healthcare Cost
and Utilization Project (HCUP) database and the California Patient
Discharge database, support modifications to the TDR procedures.
According to the commenter, ``CMS' current MS-DRG assignment and
resulting reimbursement at thirty to fifty percent (30-50%) of fusion
procedures is well below the average eighty-eight percent (88%) ratio
of TDR to fusion charges observed in the two additional databases
analyzed.''
The commenter acknowledged that procedure code 84.62 and procedure
code 84.65 are currently assigned to MS-DRG 490, regardless of whether
or not the patient has a CC or MCC. The commenter also acknowledged the
evaluation of the spinal procedure MS-DRGs in the FY 2008 IPPS proposed
and final rules (72 FR 24731 through 24735 and 47226 through 47232),
respectively. However, according to the commenter, the MS-DRG
assignment for TDR procedures requires a more recent and thorough
evaluation.
The commenter provided a comparison of how TDR procedures differ
from other procedures assigned to MS-DRG 490. The commenter also stated
that TDR procedures are more complex than other procedures in the MS-
DRG. For example, the commenter noted that MS-DRG 490 includes
procedure codes 84.58 and 84.59, representing spinal disc devices such
as the X-Stop, Coflex, Dynesys, and M-Brace which do not involve
removal of a disc. The commenter also noted that procedure code 80.51
(Excision of intervertebral disc), which comprises only one aspect of
the total surgery required for TDR, is assigned to the same MS-DRG. The
commenter further noted that because the two procedures are in the same
MS-DRG, the hospital payment is the same for both procedures.
In addition, the commenter included a comparison of TDR cases and
fusion cases, noting that there appeared to be greater similarity in
resource use between fusion and TDR procedures than between TDR and
other procedures in MS-DRG 490. The commenter reported that TDR is an
alternative treatment option to spinal fusion and that patients
receiving TDR have the same diagnosis as those receiving spinal fusion.
In terms of similarity, the commenter stated that during both a TDR and
spinal fusion surgery, the affected disc is removed, allowing normal
disc height to be restored by the use of an implant. In spinal fusion,
stability of the spinal segment is accomplished by the use of an
implant and instrumentation such as plates, rods or screws and use of
bone graft promotes osseous fusion of the vertebrae. For TDR
procedures, an implant that allows motion is inserted into the disc
space. According to the
[[Page 51533]]
commenter, these factors demonstrate clinical homogeneity and resource
utilization for both TDR and spinal fusion.
The commenter did not dispute our findings that TDR procedures have
shorter lengths of stay and are higher in costs compared to other
procedures within MS-DRG 490. The commenter also acknowledged that TDR
procedures are low volume and represent a fraction of all the
procedures assigned to the MS-DRG.
Response: We appreciate and acknowledge the commenter's provision
of data related to the HCUP database and the California Patient
Discharge database. However, we point out that the commenter failed to
identify the data related to each specified type of artificial disc
replacement procedure in its analysis. We do not consider the data to
be reliable for purposes of determining MS-DRG reclassifications in the
form provided, as the data do not identify the number of cases, average
length of stay, or average costs associated with a cervical versus a
lumbar disc replacement. Further, in its own submitted comments, the
commenter notes that the data provided were based on charges, not
costs. In addition, as stated in the FY 2012 IPPS proposed rule (76 FR
25800), in order for us to consider using particular non-MedPAR data,
we must have sufficient time to evaluate and test the data. This allows
us time to test the data and make a preliminary assessment as to the
feasibility of using the data. We evaluate patient care costs using
average charges and lengths of stay as proxies for costs and rely on
the judgment of our medical advisors to decide whether patients are
clinically distinct or similar to other patients in the MS-DRG. We also
consider variations and whether observed average differences are
consistent across patients or attributable to cases that were extreme
in terms of charges, length of stay, or both. Lastly, we consider the
number of patients who will have a given set of characteristics and
generally prefer not to create a new MS-DRG unless it would include a
substantial number of cases.
In response to the commenter's comparison of how TDR procedures
differ from other procedures in MS-DRG 490, we point out that procedure
code 84.58 (Implantation of interspinous process decompression device),
which previously identified the X-Stop device, was deleted effective
October 1, 2007 (FY 2008). In addition, the other spinal disc devices
that were noted by the commenter (Coflex, Dynesys, and M-Brace) were
reassigned from procedure code 84.59 (Insertion of other spinal
devices) to unique codes that were created in response to industry
requests to describe a newer category of devices identified as motion
preserving technologies. This new procedure code category, 84.8
(Insertion, replacement and revision of posterior spinal motion
preservation device(s)), also became effective as of October 1, 2007
(FY 2008). As discussed above, the commenter recommended that CMS
conduct a more recent and thorough evaluation of the spinal procedures
in MS-DRG 490. However, in its own submitted comments, the commenter
referred to outdated, deleted codes for its comparison to TDR.
With regard to clinical homogeneity and resource utilization,
spinal fusion, TDR and a subset of the motion preserving technologies
utilizing implant devices that allow motion in the spinal column were
discussed extensively as noted above in the FY 2008 IPPS proposed rule
and final rule with comment period (72 FR 24731 through 24735 and 47226
through 47232), respectively.
We will continue to evaluate the MS-DRGs on an annual basis and to
respond to requests for code reassignments and MS-DRG
reclassifications. We performed an analysis of the cervical and lumbar
artificial disc replacement procedures in comparison to the fusion MS-
DRGs in response to the commenter's request, as described above. Our
data did not support reassignment of the artificial disc replacement
codes, nor did our clinical advisors agree that these procedures are
clinically coherent to be grouped in the same MS-DRGs. In addition, the
data did not support the creation of a new, separate MS-DRG for total
disc replacement procedures.
As mentioned previously, we performed a comprehensive analysis of
all the spinal DRGs in our FY 2008 rulemaking process and we recognized
the costs of procedures involving insertion of a disc device. As a
result, we modified MS-DRG 490 (the higher severity level) to include
those procedures with disc devices. The data analysis conducted at that
time supported that modification.
We will continue to monitor the resource utilization of procedure
codes 84.62 and 84.65 to determine if future MS-DRG reassignments are
warranted.
After consideration of the public comments we received, we are
finalizing our proposal to not create a new, separate MS-DRG for
cervical or lumbar total disc replacement procedures and to not
reassign procedure code 84.62 from MS-DRG 490 to MS-DRGs 471 through
473 and procedure code 84.65 from MS-DRG 490 to MS-DRGs 459 and 460 for
FY 2012.
b. Major Joint Replacement or Reattachment of Lower Extremities
We received a request to add an additional severity level for MS-
DRG 469 (Major Joint Replacement or Reattachment of Lower Extremity
with MCC) and MS-DRG 470 Major Joint Replacement or Reattachment of
Lower Extremity without MCC). For the FY 2012 IPPS/LTCH PPS proposed
rule, we examined FY 2010 MedPAR claims data to determine if we could
subdivide the base MS-DRG into three severity levels: with MCC, with
CC, and without CC/MCC. We applied the criteria used in the development
of the MS-DRGs included in the FY 2008 IPPS final rule with comment
period (72 FR 47169). We refer readers to this final rule with comment
period for a complete description of these criteria. As discussed
earlier, the original criteria were based on average charges. However,
subsequent to the FY 2007 IPPS final rule (71 FR 47882), we now use
average costs. The five criteria using costs are listed below. In order
to warrant creation of a CC or an MCC subgroup within a base MS-DRG,
the subgroup must meet all of the following five criteria:
A reduction in variance of costs of at least 3 percent.
At least 5 percent of the patients in the MS-DRG fall
within the CC or MCC subgroup.
At least 500 cases are in the CC or MCC subgroup.
There is at least a 20-percent difference in average costs
between subgroups.
There is a $2,000 difference in average costs between
subgroups
The following table shows our determination of the number of cases
and average costs by MCC, CC, and non-CC levels.
------------------------------------------------------------------------
Average
MS-DRGs 469 and 470 Number of length of Average
cases stay costs
------------------------------------------------------------------------
Cases with MCC................... 25,717 7.72 $21,016
[[Page 51534]]
Cases with CC.................... 179,116 3.99 14,233
Cases without CC/MCC............. 220,739 3.21 13,250
--------------------------------------
Total........................ 425,572 3.8 14,133
------------------------------------------------------------------------
We determined that these cases do not meet our five criteria for
adding a new severity level. The cases failed to meet criterion four
(requiring at least a 20-percent difference in average costs between
subgroups) and criterion five (requiring a $2,000 difference in average
costs between subgroups). Therefore, we did not propose the addition of
a new severity level for the base MS-DRG. Instead, we proposed to
maintain the two existing severity levels for MS-DRGs 469 and 470. We
welcomed public comments on our proposal not to add an additional
severity level to MS-DRGs 469 and 470.
Comment: Several commenters supported our proposal to maintain the
two existing severity levels for MS-DRGs 469 and 470 and not to add a
third severity level. The commenters stated that the proposal seemed
reasonable, given the data and information provided.
One commenter opposed our proposal. The commenter acknowledged the
five criteria used to evaluate the establishment of a new severity
level and the fact that this set of MS-DRGs did not meet the criterion
requiring at least a 20-percent difference in average costs between
subgroups or the criterion requiring a $2,000 difference in average
costs between subgroups. However, the commenter stated that the large
number of ``with CC'' cases that are currently classified in the
``without CC/MCC'' group places an unfair burden on providers who treat
these patients and presents a distorted picture of the actual severity
level of cases assigned to those providers. The commenter believed that
adding an additional severity level to MS-DRGs 469 and 470 would better
identify those conditions that lead to higher severity of illness and
resource use relative to the average Medicare patient.
Another commenter opposed our proposal of maintaining the current
two severity levels. The commenter stated that while the data appear to
show that there is not a significant average cost difference between
cases without CC/MCC compared to cases with CC, the commenter believed
the data are biased. The commenter believed that diagnoses that do not
affect DRG assignment are less likely to be reported on claims. The
commenter speculated that it was reasonable to assume that, for cases
assigned to these MS-DRGs, complications and comorbidities are
underreported, as hospitals know that coding complications and
comorbidities do not result in higher reimbursement. The commenter
stated that a more reasonable approach would be to establish a third
severity level for major joint replacement, with the intent of
analyzing the data over the next 2 years to determine whether this was
an appropriate MS-DRG modification. The commenter stated that the fact
that ``Revision of a Hip or Knee Replacement'' has three levels
strongly suggests that three levels would be appropriate for major
joint replacement also.
Response: We agree with the commenters' statements that the data
analysis shows that two of the five established criteria for creating a
new severity level were not met. The cases failed to meet criterion two
requiring at least a 20-percent difference in average costs between
subgroups and criterion five requiring a $2,000 difference in average
costs between subgroups. The criteria were developed to evaluate the
need for severity levels across all MS-DRGs. We applied the criteria
used in the development of the MS-DRGs included in the FY 2008 IPPS
final rule with comment period (72 FR 47169). We refer readers to that
final rule with comment period for a complete description of these
criteria. As discussed earlier, the original criteria were based on
average charges. However, subsequent to the FY 2007 IPPS final rule (71
FR 47882), we now use average costs. We believe it is important to
apply these criteria consistently as requests are evaluated to create
new severity levels. The cases in MS-DRGs 469 and 470 failed to meet
the five criteria for adding a new severity level. We agree with the
commenters who supported our proposal to maintain the two existing
severity levels for MS-DRGs 469 and 470 and not creating a third
severity level.
We disagree with the commenters who stated that CMS should ignore
the criteria and add the additional severity level. One commenter
suggested that we could retroactively review this new severity level by
examining claims data 2 years after the update is made. We believe it
is inappropriate to make an exception to the severity level criteria
based on an assumption that hospitals may be under reporting secondary
diagnoses that are on the CC list for certain types of cases. We
encourage hospitals to code and report accurately. We will continue to
review data to determine if additional severity levels are needed for
specific MS-DRGs based on our published criteria. We do not believe it
is appropriate to make exceptions for certain MS-DRGs.
After consideration of the public comments we received, as we
proposed, we are maintaining MS-DRGs 469 and 470 with the current two
severity levels for FY 2012.
c. Combined Anterior/Posterior Spinal Fusion
A manufacturer requested that CMS reassign spinal fusion cases
utilizing the AxiaLIF technology from MS-DRGs 459 and 460 (Spinal
Fusion Except Cervical with MCC and without MCC, respectively) to MS-
DRGs 453, 454, and 455 (Combined Anterior/Posterior Spinal Fusion with
MCC, with CC, and without CC/MCC, respectively). The commenter stated
that an anterior lumbar interbody spinal fusion performed with a
lateral approach, the extreme lateral interbody fusion (XLIF[supreg]),
with posterior spinal fixation, can report two codes resulting in
assignment to the combined fusion MS-DRGs. The commenter also stated
that the AxiaLIF technology, which is also utilized in an anterior
lumbar interbody spinal fusion and uses a pre-sacral approach, can only
report one code, resulting in assignment to the single fusion MS-DRGs.
The commenter expressed concern that the payment incentives are not
properly aligned for the recently available minimally invasive spinal
fusion technologies. The commenter compared the XLIF[supreg] to the
AxiaLIF and urged CMS to consider the AxiaLIF technology similar to the
XLIF[supreg] for purposes of MS-DRG assignment.
Spinal fusion is a surgical procedure that joins two or more
vertebrae by the use of bone graft (or bone graft substitute), with the
goal of maintaining
[[Page 51535]]
alignment, providing stability, decreasing pain, and restoring the
function of the spinal nerves. Routinely, a spinal fusion also utilizes
internal fixation devices (instrumentation) to assist in stabilizing
the spine. These fixation devices may include pedicle screws, cages,
rods, or plates. Effective October 1, 2010, ICD-9-CM procedure code
81.06 (Lumbar and lumbosacral fusion of the anterior column, anterior
technique) describes the XLIF[supreg] procedure, and code 81.08 (Lumbar
and lumbosacral fusion of the anterior column, posterior technique)
describes the AxiaLIF technology.
The spinal fusion codes and their corresponding MS-DRG assignment
include the use of bone graft and internal fixation. The requestor's
comment regarding the assignment of one procedure code for one
technology versus assigning two procedure codes for another technology
indicates that the commenter may not fully understand the MS-DRG
GROUPER logic for spinal fusions. For example, if an anterior lumbar
interbody fusion is performed and posterior spinal fixation (or
instrumentation) is also utilized, this requires one code and results
in a single fusion MS-DRG assignment. However, if a posterior spinal
fusion (procedure code 81.07 (Lumbar and lumbosacral fusion of the
posterior column, posterior technique) was performed in addition to an
anterior fusion, for example, the XLIF[reg] procedure (procedure code
81.06), that scenario would necessitate the assignment of both codes,
resulting in assignment to the combined spinal fusion MS-DRGs (453,
454, or 455). MS-DRGs 453, 454, and 455 were created to capture
patients who have both an anterior and posterior fusion. We believe the
requestor may have confused the terms ``fixation'' and ``fusion'' for
MS-DRG assignment in its request.
For the FY 2012 IPPS/LTCH PPS proposed rule, we analyzed the FY
2010 MedPAR data to evaluate claims reporting procedure codes 81.06,
81.07, and 81.08 in MS-DRGs 456 through 458 (Spinal Fusion Except
Cervical with Spinal Curvature/Malignancy/Infection or 9+ Fusions with
MCC, with CC and without CC/MCC, respectively) and MS-DRGs 459 and 460.
We found a total of 1,115 cases in MS-DRG 456, with an average length
of stay of 13.14 days and average costs of $63,856. We found 278 cases
reporting procedure code 81.08, with an average length of stay of 12.04
days and average costs of $56,585. Similar results can be seen for
procedure code 81.08 in the remaining MS-DRGs as shown in the chart
below in terms of volume, length of stay, and average cost. Clearly,
the data demonstrate that the AxiaLIF technology (procedure code 81.08)
is appropriately assigned to its current MS-DRG assignments, as is the
XLIF[supreg] procedure (procedure code 81.06).
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 456--All cases............ 1,115 13.14 $63,856
MS-DRG 456--Cases with code 81.06 54 14.37 52,392
MS-DRG 456--Cases with code 81.07 22 12.32 46,828
MS-DRG 456--Cases with code 81.08 278 12.04 56,585
MS-DRG 457--All cases............ 3,079 6.74 41,500
MS-DRG 457--Cases with code 81.06 119 6.42 36,468
MS-DRG 457--Cases with code 81.07 98 6.49 36,532
MS-DRG 457--Cases with code 81.08 1,194 5.73 35,272
MS-DRG 458--All cases............ 1,389 3.91 32,946
MS-DRG 458--Cases with code 81.06 115 3.49 29,089
MS-DRG 458--Cases with code 81.07 76 3.16 30,551
MS-DRG 458--Cases with code 81.08 827 3.60 30,570
MS-DRG 459--All cases............ 3,650 8.92 40,218
MS-DRG 459--Cases with code 81.06 164 9.12 40,150
MS-DRG 459--Cases with code 81.07 165 8.65 37,970
MS-DRG 459--Cases with code 81.08 2,468 8.25 38,010
MS-DRG 460--All cases............ 60,865 3.75 25,268
MS-DRG 460--Cases with code 81.06 2,681 3.27 26,464
MS-DRG 460--Cases with code 81.07 3,709 3.67 23,334
MS-DRG 460--Cases with code 81.08 46,565 3.66 24,571
------------------------------------------------------------------------
We also analyzed data for combinations of the spinal fusion codes
that result in assignment to MS-DRGs 453, 454, and 455. We evaluated
the following combinations:
81.06 (Lumbar and lumbosacral fusion of the anterior
column, anterior technique) and 81.07 (Lumbar and lumbosacral fusion of
the posterior column, posterior technique).
81.06 (Lumbar and lumbosacral fusion of the anterior
column, anterior technique) and 81.08 (Lumbar and lumbosacral fusion of
the anterior column, posterior technique).
We further analyzed data with the following combination of spinal
fusion codes in MS-DRGs 456, 457, and 458 and MS-DRGs 459 and 460:
81.07 (Lumbar and lumbosacral fusion of the posterior
column, posterior technique) and 81.08 (Lumbar and lumbosacral fusion
of the anterior column, posterior technique).
The chart below shows the results of the data analysis for the
combination of procedure codes listed above where an anterior and
posterior spinal fusion was performed in the same episode of care.
There were a total of 1,190 cases in MS-DRG 453, with an average length
of stay of 13.08 days and average costs of $71,693. The cases reporting
the combination of procedure codes 81.06 and 81.08 in this same MS-DRG
totaled 431, with an average length of stay of 11.59 days and average
costs of $69,859. Results for the procedure code combination (81.06 and
81.08) in MS-DRGs 454 and 455 with regard to volume of cases, length of
stay, and average costs data also support that these spinal fusion
procedure code combinations are appropriately placed in their current
MS-DRG assignments. Likewise, for MS-DRGs 456, 457, and 458, the data
support that the spinal fusion procedure code combinations of 81.07 and
81.08 are appropriately placed in their current MS-DRG assignments.
There were a total of 1,115 cases in MS-DRG 456 with an average length
of stay of 13.14 days and average
[[Page 51536]]
costs of $68,856. The cases reporting the combination of procedure
codes 81.07 and 81.08 in this same MS-DRG totaled 54, with an average
length of stay of 14.37 days and average costs of $52,392. Results for
the procedure code combination (81.07 and 81.08) in MS-DRGs 457 and 458
with regard to volume of cases and average length of stay were lower
compared to all the cases in those two MS-DRGs. While the data show
higher average costs for the procedure code combination of 81.07 and
81.08 in MS-DRGs 457 and 458, as stated previously, the volume was
extremely low.
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 453--All cases............ 1,190 13.08 $71,693
MS-DRG 453--Cases with codes 8 14.00 109,089
81.06 and 81.07.................
MS-DRG 453--Cases with codes 431 11.59 69,859
81.06 and 81.08.................
MS-DRG 454--All cases............ 3,052 6.38 48,311
MS-DRG 454--Cases with codes 47 6.83 60,743
81.06 and 81.07.................
MS-DRG 454--Cases with codes 1,825 5.71 47,144
81.06 and 81.08.................
MS-DRG 455--All cases............ 2,747 3.63 37,378
MS-DRG 455--Cases with codes 40 4.28 47,794
81.06 and 81.07.................
MS-DRG 455--Cases with codes 2,053 3.43 37,793
81.06 and 81.08.................
MS-DRG 456--All cases............ 1,115 13.14 63,856
MS-DRG 456--Cases with codes 54 14.37 52,392
81.07 and 81.08.................
MS-DRG 457--All cases............ 3,079 6.74 41,500
MS-DRG 457--Cases with codes 29 5.97 60,820
81.07 and 81.08.................
MS-DRG 458--All cases............ 1,389 3.91 32,946
MS-DRG 458--Cases with code 81.07 23 3.22 51,942
and 81.08.......................
------------------------------------------------------------------------
As the focus of the analysis was to evaluate procedure code 81.08
in comparison to procedure code 81.06, we believe the AxiaLIF
technology (procedure code 81.08) is grouped appropriately in its
current MS-DRG assignments, as is the XLIF[supreg] procedure (procedure
code 81.06). The volume, length of stay, and cost data analyzed
demonstrate that the complexity of services and resources utilized for
each of these technologies are properly accounted for in their
respective MS-DRG assignments. Therefore, the data did not support
making changes for procedure code 81.08. As a result, we did not
propose to reassign cases reporting this procedure code to the combined
fusion MS-DRGs. We invited public comment on our proposal to not
reassign procedure code 81.08 from MS-DRGs 456 through 460 to MS-DRGs
453 through 455 for FY 2012.
Comment: Several commenters supported our proposal to not reassign
procedure code 81.08 to MS-DRGs 453 through 455.
Response: We appreciate the commenters' support.
After consideration of the public comments we received, we are
finalizing our proposal to not reassign procedure code 81.08 to MS-DRGs
453 through 455.
6. MDC 9 (Diseases and Disorders of the Skin, Subcutaneous Tissue, and
Breast): Excisional Debridement of Wound, Infection, or Burn
We received a request that we remove procedure code 86.22
(Excisional debridement of wound, infection, or burn) from the list of
codes considered to be O.R. procedures. The commenter stated that many
inpatient excisional debridements are performed in a patient's room
instead of in an operating room. The commenter believed that the
original assignment of procedure code 86.22 to the O.R. list served to
help reflect the resource intensity required by a patient with wounds
and ulcers that required an excisional debridement. The commenter
stated that, by doing so, the code served as a proxy for severity of
illness in the original CMS DRGs prior to the implementation of MS-DRGs
in FY 2008. The commenter stated that the creation of the most serious
pressure ulcer codes for stage 3 and stage 4 pressure ulcers (codes
707.23 and 707.24) allows these conditions to be classified as MCCs.
Therefore, the commenter stated that the need to use procedure code
86.22 to capture severity of illness was no longer needed. The
commenter also stated that procedure code 86.22 is a non-O.R. code
under the APR-DRGs and does not affect the DRG assignment. The
commenter requested that procedure code 86.22 be changed from an O.R.
procedure code to a non-O.R. procedure code.
As the commenter stated, excisional debridements are currently
captured in procedure code 86.22. Procedure code 88.22 is classified as
an O.R. procedure in the current MS-DRGs and, therefore, leads to a
surgical MS-DRG assignment. We examined MedPAR claims data on all
excisional debridement cases and found that these debridement cases use
appreciably fewer resources than other cases in their current surgical
DRGs. However, for the proposed rule, we determined that if we were to
classify debridement cases as non-O.R. cases and assign them to medical
DRGs, we would significantly underpay these cases. The following chart
shows differences in average costs for all excisional debridement cases
compared to other cases within their current MS-DRG and compared to
medical DRGs to which the patients would be assigned if the procedure
were reclassified as a non-O.R. procedure.
----------------------------------------------------------------------------------------------------------------
Average costs
in surgical Average costs
All cases with Average cost DRGs to which in medical DRGs
Procedure code no other OR (A) the patients to which the
procedure are assigned patients would
(B) be assigned (C)
----------------------------------------------------------------------------------------------------------------
86.22....................................... 32,152 $12,427 $17,332 $8,070
----------------------------------------------------------------------------------------------------------------
[[Page 51537]]
The chart illustrates that when debridement is the only O.R.
procedure, it is assigned to MS-DRGs that have an average cost that is
approximately $5,000 more than the actual cost of the debridement
($12,427 versus $17,332). Conversely, if the debridement is made a non-
O.R. code, it would, on average, be assigned to MS-DRGs that have an
average cost that is approximately $4,000 less than the actual cost of
the debridement ($8,070 versus $12,427). Therefore, we believe it would
be inappropriate to propose to classify these procedures as a non-O.R.
procedure.
For the proposed rule, we explored alternative approaches to
classifying procedure code 86.22 as a non-O.R. procedure. We evaluated
the possibility of removing excisional debridements from their current
MS-DRG assignments within the following skin-related MS-DRGs, where
they are combined with skin grafts, and creating a new set of
debridement MS-DRGs. The current MS-DRGs that combine skin grafts and
debridements into the same MS-DRGs are as follows:
MS-DRGs 573 through 575 (Skin Graft &/or Debridement for
Skin Ulcer or Cellulitis with MCC, with CC, and without CC/MCC,
respectively).
MS-DRGs 576 through 578 (Skin Graft &/or Debridement
Except for Skin Ulcer or Cellulitis with MCC, with CC, and without CC/
MCC, respectively).
We analyzed MedPAR claims data on the severity level of graft cases
without any debridements in these six MS-DRGs. Our findings are shown
in the chart below.
Skin Grafts Without Debridements
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRGs 573-575--Cases with 751 14.56 $23,975
severity level of MCC...........
MS-DRGs 573-575--Cases with 1,720 10.16 14.869
severity level of CC............
MS-DRGs 573-575--Cases with 540 5.36 8,469
severity level of without CC/MCC
MS-DRGs 576-578--Cases with 335 10.28 22,996
severity level of MCC...........
MS-DRGs 576-578--Cases with 1,482 5.28 11,299
severity level of CC............
MS-DRGs 576-578--Cases with 1,849 3.01 6,986
severity level of without CC/MCC
------------------------------------------------------------------------
We compared these data to a proposed new set of skin-related MS-
DRGs that would include only debridements. The results of the findings
of the severity levels of debridements without skin grafts in these six
MS-DRGs are shown in the chart below.
Debridements Without Skin Grafts
------------------------------------------------------------------------
Average
MS-DRG Number of length of Average
cases stay costs
------------------------------------------------------------------------
MS-DRG 573-575--Cases with 3,177 11.73 $18,381
severity level of MCC...........
MS-DRG 573-575--Cases with 6,649 7.67 10,730
severity level of CC............
MS-DRG 573-575--Cases with 2,555 4.94 6,372
severity level of without CC/MCC
MS-DRG 576-578--Cases with 271 11.59 19,429
severity level of MCC...........
MS-DRG 576-578--Cases with 638 7.61 11,913
severity level of CC............
MS-DRG 576-578--Cases with 285 4.45 6,928
severity level of without CC/MCC
------------------------------------------------------------------------
Our findings indicate that the graft procedure cases have higher
average costs than the excisional debridement cases. The average costs
for the excisional debridement cases in MS-DRGs 573 through 575
compared to the debridement cases in MS-DRGs 576 through 578 are very
similar. We believe that the data support creating a single set of
skin-related excisional debridement MS-DRGs composed of cases
previously captured in MS-DRGs 573 through 575 as well as MS-DRGs 576
through 578. The following chart illustrates those combined average
costs.
Excisional Debridements From Ms-Drgs 573 Through 578 Split on Severity
Level
------------------------------------------------------------------------
Average
MS-DRGs 573--578 Number of length of Average
cases stay costs
------------------------------------------------------------------------
Combined Excisional Debridement 3,448 11.71 $18,463
Cases with Severity Level of MCC
Combined Excisional Debridement 7,287 7.76 10,833
Cases with Severity Level of CC.
Combined Excisional Debridement 2,840 4.89 6,428
Cases with Severity Level of
without CC/MCC..................
------------------------------------------------------------------------
As we stated in the proposed rule, we believe that the data support
separating skin graft procedures from excisional debridements by
creating a new set of MS-DRGs. This would result in more accurate
payment for both skin grafts and debridement. Therefore, we proposed to
remove excisional debridements (procedure code 86.22) from their
current MS-DRG assignments within MS-DRGs 573 through 578 for skin
grafts and assign them to new excisional debridement MS-DRGs. We
proposed to maintain MS-DRGs 573 through 578 for skin grafts. The
following list describes the proposed new and revised MS-DRG titles:
[[Page 51538]]
Proposed new MS-DRGs based on procedure code 86.22:
Proposed MS-DRG 570 (Skin Debridement with MCC)
Proposed MS-DRG 571 (Skin debridement with CC)
Proposed MS-DRG 572 (Skin Debridement without CC/MCC)
Proposed Revised MS-DRGs based on codes currently assigned to MS-
DRGs 573 through 578, excluding procedure code 86.22:
Proposed revised MS-DRG 573 (Skin Graft for Skin Ulcer or
Cellulitis with MCC)
Proposed revised MS-DRG 574 (Skin Graft for Skin Ulcer or
Cellulitis with CC)
Proposed revised MS-DRG 575 (Skin Graft for Skin Ulcer or
Cellulitis without CC/MCC)
Proposed revised MS-DRG 576 (Skin Graft Except for Skin Ulcer
or Cellulitis with MCC)
Proposed revised MS-DRG 577 (Skin Graft except for Skin Ulcer
or Cellulitis with CC)
Proposed revised MS-DRG 578 (Skin Graft Except for Skin Ulcer
or Cellulitis without CC/MCC)
In the proposed rule, we invited public comments on our proposal
for FY 2012 to create three new debridement MS-DRGs 570, 571, and 572
for skin debridement and to revise MS-DRGs 573 through 578 to include
skin grafts only, as indicated above.
Comment: Several commenters supported our proposal to create three
new debridement MS-DRGs, MS-DRGs 570, 571, and 572 for skin debridement
and to revise MS-DRGs 573 through 578 to include skin grafts only, as
described above. One commenter stated that the proposal seemed
reasonable, given the data and the information provided. Another
commenter who supported this MS-DRG modification expressed appreciation
for the change because the relative weights better reflect resource
intensive cases with the proposed new and revised MS-DRGs 570 through
578.
One commenter supported our recommendation not to remove the code
for excisional debridement from the O.R. list. However, the commenter
opposed removing excisional debridements (procedure code 86.22) from
their current MS-DRG assignments within MS-DRGs 573 through 578 for
skin grafts and assigning them to new excisional debridement MS-DRGs
and maintaining MS-DRGs 573 through 578 for skin grafts. The commenter
stated that excisional debridement is not exclusively a bedside
procedure. Rather, the commenter noted, it can be performed in or out
of the operation room, based on the judgment of the surgeon. The
commenter stated that, in many instances, this procedure cannot be
performed at the bedside due to variables such as patient anxiety, the
size of the wound, bleeding risk, among others. The commenter stated
that removing excisional debridements from their current MS-DRG
assignments could harm many hospitals that perform procedures such as
split thickness skin grafts for extensive wound or burns. The commenter
recommended that, instead of removing excisional debridements from the
current MS-DRG assignments, CMS create a separate ICD-9-CM code for
debridement that is performed in the operating room due to anesthesia,
equipment, or monitoring requirements.
Another commenter opposed the creation of separate debridement and
skin graft MS-DRGs out of concern that this would create significant
confusion among hospital coders. The commenter stated that skin grafts
and skin debridements are often performed on the same patient. The
commenter stated that the current descriptions of MS-DRGs 573 through
575 (Skin Graft and/or Debridement for Skin Ulcer or Cellulitis with
MCC, with CC, and without CC/MCC, respectively) and MS-DRGs 576 through
578 (Skin Graft and/or Debridement Except for Skin Ulcer or Cellulitis
with MCC, with CC, and without CC/MCC, respectively) appropriately
describe the interrelationship between skin grafts and debridement. The
commenter expressed concern that de-linking this relationship would
lead to confusion for coders.
Response: We agree with the commenters that data support the
creation of three new debridement MS-DRGs 570, 571, and 572 for skin
debridement and the revision of MS-DRGs 573 through 578 to include skin
grafts only.
We disagree with the commenter who recommends that, instead of
creating separate MS-DRGs for skin debridements and skin grafts, CMS
pursue the creation of a new skin debridement code that would be
limited to those procedures performed in an operating room setting.
ICD-9-CM codes are not currently subdivided based on the location of
the procedure such as in an operating room, endoscopy room,
catheterization room, treatment room, or patient room. ICD-9-CM codes
are assigned based on the procedure performed, not the location in
which the procedure was performed. Furthermore, we have just begun a
period of a partial freeze of both ICD-9-CM and ICD-10 codes. This
partial freeze is discussed in section II.G.13.b. of this preamble. We
do not believe it is appropriate to postpone refinements to the MS-DRGs
until a code update could be made and data on cases reported with the
new code could be evaluated. We believe the current data support this
proposed modification. However, as stated earlier, ICD-9-CM codes do
not indicate the setting in which a procedure is performed. Therefore,
it is unlikely that such a code would be created even if we were not in
a period of a code freeze.
We also disagree with the commenter who stated that creating
separate MS-DRGs for skin debridements and skin grafts will create
confusion for coders. We believe that coders clearly understand the
difference between skin debridements and skin grafts. If both are
performed, then coders code and report both procedures. The fact that
the MS-DRGs would be modified would not affect the way in which coders
assign codes for skin debridements and skin grafts. We also note that
organizations representing coders, including the American Health
Information Management Association, supported this proposed MS-DRG
modification. These organizations did not express concerns about any
possible confusion for coders.
After consideration of the public comments we received, we are
finalizing our proposal to create the following new and revised MS-
DRGs:
New MS-DRGs based on procedure code 86.22:
MS-DRG 570 (Skin Debridement with MCC)
MS-DRG 571 (Skin debridement with CC)
MS-DRG 572 (Skin Debridement without CC/MCC)
Revised MS-DRGs based on codes currently assigned to MS-DRGs 573
through 578, excluding procedure code 86.22:
Revised MS-DRG 573 (Skin Graft for Skin Ulcer or Cellulitis
with MCC)
Revised MS-DRG 574 (Skin Graft for Skin Ulcer or Cellulitis
with CC)
Revised MS-DRG 575 (Skin Graft for Skin Ulcer or Cellulitis
without CC/MCC)
Revised MS-DRG 576 (Skin Graft Except for Skin Ulcer or
Cellulitis with MCC)
Revised MS-DRG 577 (Skin Graft except for Skin Ulcer or
Cellulitis with CC)
Revised MS-DRG 578 (Skin Graft Except for Skin Ulcer or
Cellulitis without CC/MCC)
[[Page 51539]]
7. MDC 10 (Endocrine, Nutritional, and Metabolic Diseases and
Disorders)
a. Nutritional and Metabolic Diseases: Update of MS-DRG Titles
We received a request to revise the MS-DRG titles for MS-DRGs 640
through 642 to more clearly capture the cases that are currently
assigned to these MS-DRGs. The current titles for these MS-DRGs are:
MS-DRGs 640 (Nutritional & Miscellaneous Metabolic Disorders with MCC);
MS-DRG 641 (Nutritional & Miscellaneous Metabolic Disorders without
MCC); and MS-DRG 642 (Inborn Errors of Metabolism). The requestor
suggested that we change the titles to: MS-DRG 640 (Miscellaneous
Disorders of Nutrition, Metabolism, and Fluids and Electrolytes with
MCC); MS-DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, and
Fluids and Electrolytes without MCC); and MS-DRG 642 (Inborn and Other
Disorders of Metabolism).
Our clinical advisors supported these suggested changes to the
titles, as the suggested changes would provide a better description of
the diagnoses assigned to MS-DRGs 640, 641, and 642. Therefore, in the
FY 2012 IPPS/LTCH PPS proposed rule, we proposed to revise the MS-DRG
titles for MS-DRGs 640, 641, and 642 as the requestor suggested. We
invited public comment on our proposal to change the MS-DRG titles for
MS-DRGs 640, 641, and 642 for FY 2012.
Comment: Several commenters supported our proposed changes to the
titles of MS-DRGs 640 through 642 to better reflect the cases that are
assigned to these MS-DRGs.
Response: We appreciate the commenters' support.
After consideration of the public comments we received, we are
finalizing our proposal to change the titles for MS-DRGs 640 through
642. The final tiles are as follows:
MS-DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism,
and Fluids and Electrolytes with MCC)
MS-DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism,
and Fluids and Electrolytes without MCC)
MS-DRG 642 (Inborn and Other Disorders of Metabolism).
b. Sleeve Gastrectomy Procedure for Morbid Obesity
Sleeve gastrectomy is a 70 percent to 80 percent greater curvature
gastrectomy (sleeve resection of the stomach) with continuity of the
gastric lesser curve being maintained while simultaneously reducing
stomach volume. It may be the first step in a two-stage procedure when
performing Roux-en-Y Gastric Bypass (RYGBP). Sleeve gastrectomy,
whether open or laparoscopic, is currently coded using ICD-9-CM
procedure code 43.89 (Other total gastrectomy). Procedure code 43.89 is
currently assigned to several MS-DRGs. However, the code is not
assigned to MS-DRG 619, 620, or 621 (O.R. Procedures for Obesity with
MCC, with CC, and without CC/MCC, respectively).
We received a request for CMS to review MDC 10 (Endocrine,
Nutritional, and Metabolic Diseases and Disorders) for consistency.
Specifically, the requestor questioned why diagnosis code 278.01
(Morbid obesity), when paired on a claim with procedure code 43.89,
would be assigned to MS-DRG 981, 982, or 983 (Extensive O.R. Procedure
Unrelated to Principal Diagnosis with MCC, with CC, or without CC/MCC,
respectively) instead of MS-DRG 619, 620, or 621.
Upon review for the FY 2012 IPPS/LTCH PPS proposed rule, we
determined that diagnosis code 278.01 is assigned to MDC 10. However,
procedure code 43.89 is not assigned to any MS-DRG set in this MDC.
Therefore, the cases are assigned to MS-DRGs 981 through 983,
reflecting procedures not related to the principal diagnosis. This was
an inadvertent oversight on CMS' part when the MS-DRGs were created.
Therefore, we proposed to add a procedure code or codes identifying
sleeve gastrectomy to MS-DRGs 619 through 621 for FY 2012.
Currently, sleeve gastrectomy is identified in the ICD-9-CM
procedure code Index as follows: Gastrectomy (partial) (subtotal) NEC
43.89. At procedure code 43.89 in the ICD-9-CM procedure code Tabular,
an inclusion note identifies this code as including sleeve resection of
the stomach.
In our proposal to add a procedure code or codes to MS-DRGs 619
through 621, we pointed out that there is an NCD that has precluded
coverage of sleeve gastrectomy when performed either open or
laparoscopically. This decision may be found in the Medicare National
Coverage Determination Manual, Section 100.1, Nationally Noncovered
Indications for Bariatric Surgery for Treatment of Morbid Obesity,
effective on February 12, 2009. This manual is available on the CMS Web
site through a link at: http://www.cms.gov/manuals/downloads/mcd103c1_Part2.pdf. This manual entry affirms that treatment for obesity via use
of the open or laparoscopic sleeve gastrectomy is determined to be
noncovered for Medicare beneficiaries.
Noncoverage of these cases is determined by our Medicare
contractors, the fiscal intermediary or A-B/MAC, because of the nature
of procedure code 43.89, which is a code that identifies several
gastrectomy procedures. To identify a code in the MCE that describes
many procedures would inappropriately restrict other procedures which
are also described by that code, but which are covered. We received a
request to create specific codes uniquely identifying both laparoscopic
sleeve gastrectomy and the open procedure, vertical sleeve gastrectomy.
We addressed this request at the ICD-9-CM Coordination and Maintenance
Committee meeting held on March 9, 2011.
We had stated that should a code or codes be created as a result of
this request, we would then be able to add this code or codes to the
MCE as a conforming noncoverage edit when combined with diagnosis code
278.01. The background information discussing sleeve gastrectomy coding
can be accessed on the CMS Web site at: http://www.cms.gov/ICD9ProviderDiagnosticcodes/03_meetings.asp#TopOfPage. A summary of
the meeting can be found on CMS' Web site for the ICD-9-CM Coordination
and Maintenance Committee at: http://www.cms.gov/ICD9ProviderDiagnosticCodes/03_meetings.asp#TopOfPage by scrolling
down to the .pdf zip files containing the meeting agenda and handouts.
Therefore, for FY 2012, we proposed to add a procedure code or
codes identifying sleeve gastrectomy to MS-DRGs 619 through 621.
However, we also indicated that we intended to add any code or codes
created at the ICD-9-CM Coordination and Maintenance Committee on March
9, 2011, to the MCE because sleeve gastrectomy, whether open or
laparoscopic, is not covered for Medicare beneficiaries. The code or
codes would appear in the ``Noncovered Procedures'' edit of the MCE. As
the timing of the development of the proposed rule and the date of the
March 2011 meeting of the ICD-9-CM Coordination and Maintenance
Committee overlapped, we could not determine if additional sleeve
gastrectomy codes would be created, to what code number or numbers they
would be assigned, or how the narrative describing them would read.
However, we indicated that should a code or codes be created, we
proposed that they would simultaneously be placed in both MS-DRGs 619
through 621 and the MCE. This decision may seem to be counterintuitive,
but CMS realizes that
[[Page 51540]]
our MS-DRGs and the Medicare GROUPER program are used for other
beneficiaries and by other insurance plans rather than strictly for
Medicare beneficiaries. Any new code or codes created as a result of
the ICD-9-CM Coordination and Maintenance Committee meeting are
included in Table 6B (which is listed in section VI. of the Addendum to
this final rule and available via the Internet at http://www.cms.gov/ICD9ProviderDiagnosticCodes/04_addendum.asp#TopOfPage); we indicated
that we did not have a mechanism to make the codes from the March 9,
2011 meeting available in the proposed rule prior to the final rule's
publication.
As a result of the March 9, 2011 ICD-9-CM Coordination and
Maintenance Committee Meeting, one code was created: Procedure code
43.82 (Laparoscopic vertical (sleeve) gastrectomy). To address open
gastrectomies, the title of existing code 43.89 was revised to read
``Open and other partial gastrectomy''. Both codes can be found in
Table 6B (New Procedure Codes) and Table 6F (Revised Procedure Code
Titles), which are listed in the Addendum to this final rule and
available via the Internet on the CMS Web site.
Comment: Several commenters addressed both the creation of a code
or codes for laparoscopic or open sleeve gastrectomy discussed above
and the proposed changes to the MCE. Several commenters indicated that
they had no objections to the proposed changes to the MS-DRG
classifications and the MCE, stating that the proposed changes seemed
reasonable, given the data and information provided. One commenter
specifically requested that CMS finalize its proposal to add new
procedure code 43.82 to the MCE as a noncovered procedure.
Response: We appreciate the commenters' support of our proposal.
Comment: One commenter stated that they understood that procedure
code 43.89 was inadvertently omitted from MS-DRGs 619, 620, and 621
when the MS-DRGs were created and supported the addition of this code
to these MS-DRGs. In addition, this commenter stated that because
procedure code 43.89 is not specific to open sleeve gastrectomy, it
cannot be incorporated as a ``noncovered procedure'' in the MCE.
Response: We appreciate the commenter's support for this proposal
and agree that procedure code 43.89 includes several gastrectomy
procedures. Therefore, to identify a code describing many procedures in
an MCE edit would inappropriately restrict other procedures included in
that code that are covered.
After consideration of the public comments we received, we are
adopting as final our proposal to assign both the new procedure code
43.82 (Laparoscopic vertical (sleeve) gastrectomy) and the existing
procedure code 43.89 (Other total gastrectomy) to MS-DRGs 619, 620, and
621 (O.R. Procedures for Obesity with MCC, with CC, and without CC/MCC,
respectively). In addition, we are adding procedure code 43.82 to the
``Noncovered Procedures'' edit of the MCE because laparoscopic sleeve
gastrectomy is not covered for Medicare beneficiaries. Because
procedure code 43.89 includes several gastrectomy procedures, its
inclusion in the MCE would be inappropriate. Therefore, it will not be
placed on the MCE.
8. MDC 15 (Newborns and Other Neonates With Conditions Originating in
the Perinatal Period): Discharge Status Code 66 (Discharged/Transferred
to Critical Assess Hospital (CAH))
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50236), we finalized
our transfer policy regarding transfer of patients from an acute care
hospital to a CAH. In that final rule, we stated that hospitals are
required to use patient discharge status code 66 on the IPPS claims to
identify transfers to CAHs.
With this new requirement, a discharge from an IPPS hospital to a
CAH equates to a transfer status. However, discharge status code 66 is
currently not included in the MS-DRG GROUPER logic for MS-DRG 789
(Neonate, Died or Transferred to Another Acute Care Facility).
Therefore, in the FY 2012 IPPS/LTCH PPS proposed rule, we proposed to
add discharge status code 66 to the MS-DRG GROUPER logic for MS-DRG
789. We invited public comment on our proposal to add discharge status
code 66 to the MS-DRG GROUPER logic for MS-DRG 789 for FY 2012.
Comment: Several commenters supported our proposal to add discharge
status code 66 to the MS-DRG GROUPER logic for MS-DRG 789.
Response: We appreciate the support of the commenters.
After consideration of the public comments we received, we are
finalizing our proposal to add discharge status code 66 (Discharged/
Transferred to Critical Assess Hospital (CAH)) to the MS-DRG GROUPER
logic for MS-DRG 789.
9. Medicare Code Editor (MCE) Changes
As explained under section II.B.1. of the preamble of this final
rule, the Medicare Code Editor (MCE) is a software program that detects
and reports errors in the coding of Medicare claims data. Patient
diagnoses, procedure(s), and demographic information are entered into
the Medicare claims processing systems and are subjected to a series of
automated screens. The MCE screens are designed to identify cases that
require further review before classification into an MS-DRG. In this
final rule, we discuss our intention to make the following change to
the MCE edits.
In section II.G.7.b. of this preamble, we discuss that the current
ICD-9-CM procedure code for sleeve gastrectomy (43.89 (Other partial
gastrectomy, other)) is a noncovered code when performed for resection
of the stomach in patients with morbid obesity. We also discuss that
noncoverage for Medicare beneficiaries of cases containing procedure
code 43.89 is determined by the fiscal intermediaries or A-B/MACs
because of the nature of procedure code 43.89. This code is imprecise
and identifies several other gastrectomy procedures in addition to
sleeve resection. Therefore, to limit coverage by identifying a code
that describes many procedures through the use of the MCE would
inappropriately restrict other procedures that are covered by Medicare.
In that section, we also state that we received a request to create
specific procedure codes identifying both laparoscopic sleeve
gastrectomy and open vertical sleeve gastrectomy. As we stated above,
we addressed this request at the ICD-9-CM Coordination and Maintenance
Committee meeting held on March 9, 2011. In the FY 2012 IPPS/LTCH PPS
proposed rule (FR 76 25833 and 25834), we indicated that if a code or
codes should be created as a result of this request, we would then be
able to add these codes to the MCE as a conforming noncoverage edit
when combined with diagnosis code 278.01 (Morbid obesity).
As the timing of development of the proposed rule and the
scheduling of the ICD-9-CM Coordination and Maintenance Committee
meeting on March 9, 2011 overlapped, it was not possible to determine
what those codes might be, or even if they would be created for FY
2012. However, we indicated in the proposed rule that should a code or
codes be created, we proposed that any code or codes for laparoscopic
or open sleeve resection of the stomach would be added to the MCE as a
noncovered procedure or
[[Page 51541]]
procedures, in combination with diagnosis code 278.01. The background
information discussing sleeve gastrectomy coding can be accessed on the
CMS Web site at: http://www.cms.gov/ICD9ProviderDiagnosticcodes/03_meetings.asp#TopOfPage. New codes describing sleeve gastrectomy are
included in Table 6B (which is listed in section VI. of the Addendum to
this final rule and are also available via the Internet at http://www.cms.gov/ICD9ProviderDiagnosticCodes/04_addendum.asp#TopOfPage). In
the proposed rule, we indicated that we did not have a mechanism to
make the codes available prior to the final rule's publication, and
invited public comments on this proposal.
As a result of the March 9, 2011 ICD-9-CM Coordination and
Maintenance Committee Meeting, one code was created: procedure code
43.82 (Laparoscopic vertical (sleeve) gastrectomy). To address open
gastrectomies, the title of existing procedure code 43.89 was revised
to read ``Open and other partial gastrectomy''. Both codes can be found
in Tables 6B and 6F, which are listed in the Addendum to this final
rule and available via the Internet.
Comment: Several commenters indicated that they had no objections
to the proposed changes to the MS-DRG classifications and the MCE,
stating that the proposed changes seemed reasonable, given the data and
information provided. One commenter specifically requested that CMS
finalize its proposal to add new procedure code 43.82 to the MCE as a
noncovered procedure.
Response: We appreciate the commenters' support of our proposals.
Comment: Several commenters stated that because procedure code
43.89 is not specific to open sleeve gastrectomy it cannot be
incorporated as a ``noncovered procedure'' in the MCE.
Response: We agree that procedure code 43.89 includes several
gastrectomy procedures, and to identify this code describing many
procedures in an MCE edit would be inappropriately restricting other
procedures that are covered.
Comment: One commenter recognized that procedure codes discussed at
the ICD-9-CM Coordination and Maintenance Committee Meeting of March 9,
2011 could not logistically be included in the IPPS proposed rule. The
commenter urged CMS to apply current logic to code revisions that were
discussed at the March 2011 ICD-9-CM Coordination and Maintenance
Committee meeting, but which could not be finalized in time to include
them in the proposed rule.
Response: We appreciate that the public understands some of the
timing constraints under which we must operate. We assure the public
that the same logic considerations regarding code assignment to
predecessor MS-DRGs as well as O.R. determinations are applied to newly
created codes from the March 2011 ICD-9-CM Coordination and Maintenance
Committee Meeting as were applied to the codes created as a result of
the September 15, 2010 ICD-9-CM Coordination and Maintenance Committee
Meeting.
After consideration of the public comments we received, we are
adopting as final our proposal to add procedure code 43.82 to the
``Noncovered Procedures'' edit of the MCE, given that laparoscopic
sleeve gastrectomy is not covered for Medicare beneficiaries. Because
procedure code 43.89 includes several gastrectomy procedures, its
inclusion in the MCE would be inappropriate. Therefore, we are not
placing it on the MCE.
10. Surgical Hierarchies
Some inpatient stays entail multiple surgical procedures, each one
of which, occurring by itself, could result in assignment of the case
to a different MS-DRG within the MDC to which the principal diagnosis
is assigned. Therefore, it is necessary to have a decision rule within
the GROUPER by which these cases are assigned to a single MS-DRG. The
surgical hierarchy, an ordering of surgical classes from most resource-
intensive to least resource-intensive, performs that function.
Application of this hierarchy ensures that cases involving multiple
surgical procedures are assigned to the MS-DRG associated with the most
resource-intensive surgical class.
Because the relative resource intensity of surgical classes can
shift as a function of MS-DRG reclassification and recalibrations, we
reviewed the surgical hierarchy of each MDC, as we have for previous
reclassifications and recalibrations, to determine if the ordering of
classes coincides with the intensity of resource utilization.
A surgical class can be composed of one or more MS-DRGs. For
example, in MDC 11, the surgical class ``kidney transplant'' consists
of a single MS-DRG (MS-DRG 652) and the class ``major bladder
procedures'' consists of three MS-DRGs (MS-DRGs 653, 654, and 655).
Consequently, in many cases, the surgical hierarchy has an impact on
more than one MS-DRG. The methodology for determining the most
resource-intensive surgical class involves weighting the average
resources for each MS-DRG by frequency to determine the weighted
average resources for each surgical class. For example, assume surgical
class A includes MS-DRGs 1 and 2 and surgical class B includes MS-DRGs
3, 4, and 5. Assume also that the average costs of MS-DRG 1 is higher
than that of MS-DRG 3, but the average costs of MS-DRGs 4 and 5 are
higher than the average costs of MS-DRG 2. To determine whether
surgical class A should be higher or lower than surgical class B in the
surgical hierarchy, we would weigh the average costs of each MS-DRG in
the class by frequency (that is, by the number of cases in the MS-DRG)
to determine average resource consumption for the surgical class. The
surgical classes would then be ordered from the class with the highest
average resource utilization to that with the lowest, with the
exception of ``other O.R. procedures'' as discussed below.
This methodology may occasionally result in assignment of a case
involving multiple procedures to the lower-weighted MS-DRG (in the
highest, most resource-intensive surgical class) of the available
alternatives. However, given that the logic underlying the surgical
hierarchy provides that the GROUPER search for the procedure in the
most resource-intensive surgical class, in cases involving multiple
procedures, this result is sometimes unavoidable.
We note that, notwithstanding the foregoing discussion, there are a
few instances when a surgical class with a lower average cost is
ordered above a surgical class with a higher average cost. For example,
the ``other O.R. procedures'' surgical class is uniformly ordered last
in the surgical hierarchy of each MDC in which it occurs, regardless of
the fact that the average costs for the MS-DRG or MS-DRGs in that
surgical class may be higher than those for other surgical classes in
the MDC. The ``other O.R. procedures'' class is a group of procedures
that are only infrequently related to the diagnoses in the MDC, but are
still occasionally performed on patients in the MDC with these
diagnoses. Therefore, assignment to these surgical classes should only
occur if no other surgical class more closely related to the diagnoses
in the MDC is appropriate.
A second example occurs when the difference between the average
costs for two surgical classes is very small. We have found that small
differences generally do not warrant reordering of the hierarchy
because, as a result of reassigning cases on the basis of the hierarchy
change, the average costs are likely to shift such that the higher-
[[Page 51542]]
ordered surgical class has a lower average costs than the class ordered
below it.
As we proposed, based on the changes that we are make for FY 2012,
as discussed in sections II.G.1. and 6. of this preamble, we are
revising the surgical hierarchy for Pre-MDCs and MDC 9 (Diseases and
Disorders of the Skin, Subcutaneous Tissue, and Breast) as follows:
In Pre-MDCs, we are reordering new MS-DRG 016 (Autologous Bone
Marrow Transplant with CC/MCC) and new MS-DRG 017 (Autologous Bone
Marrow Transplant without CC/MCC) above MS-DRG 010 (Pancreas
Transplant).
In MDC 9, we are reordering--
MS-DRG 578 (Skin Graft Except for Skin Ulcer or Cellulitis
without CC/MCC) above new MS-DRG 570 (Skin Debridement with MCC);
New MS-DRG 570 above new MS-DRG 571 (Skin Debridement with
CC);
New MS-DRG 571 above new MS-DRG 572 (Skin Debridement
without CC/MCC; and
New MS-DRG 572 above MS-DRG 579 (Other Skin, Subcutaneous
Tissue, and Breast Procedures with MCC).
Comment: Commenters generally supported our proposals.
Response: Based on these public comments and our review of the
proposed revisions using the March 2011 update of the FY 2010 MedPAR
file and the revised GROUPER software, we found that the revisions are
still supported by the data. Therefore, we have incorporated the
proposed revisions to the surgical hierarchy as final for FY 2012.
11. Complications or Comorbidity (CC) Exclusions List
a. Background
As indicated earlier in the preamble of this final rule, under the
IPPS MS-DRG classification system, we have developed a standard list of
diagnoses that are considered CCs. Historically, we developed this list
using physician panels that classified each diagnosis code based on
whether the diagnosis, when present as a secondary condition, would be
considered a substantial complication or comorbidity. A substantial
complication or comorbidity was defined as a condition that, because of
its presence with a specific principal diagnosis, would cause an
increase in the length of stay by at least 1 day in at least 75 percent
of the patients. We refer readers to section II.D.2. and 3. of the
preamble of the FY 2008 IPPS final rule with comment period for a
discussion of the refinement of CCs in relation to the MS-DRGs we
adopted for FY 2008 (72 FR 47121 through 47152).
b. CC Exclusions List for FY 2012
In the September 1, 1987 final notice (52 FR 33143) concerning
changes to the DRG classification system, we modified the GROUPER logic
so that certain diagnoses included on the standard list of CCs would
not be considered valid CCs in combination with a particular principal
diagnosis. We created the CC Exclusions List for the following reasons:
(1) To preclude coding of CCs for closely related conditions; (2) to
preclude duplicative or inconsistent coding from being treated as CCs;
and (3) to ensure that cases are appropriately classified between the
complicated and uncomplicated DRGs in a pair. As we indicated above, we
developed a list of diagnoses, using physician panels, to include those
diagnoses that, when present as a secondary condition, would be
considered a substantial complication or comorbidity. In previous
years, we have made changes to the list of CCs, either by adding new
CCs or deleting CCs already on the list.
In the May 19, 1987 proposed notice (52 FR 18877) and the September
1, 1987 final notice (52 FR 33154), we explained that the excluded
secondary diagnoses were established using the following five
principles:
Chronic and acute manifestations of the same condition
should not be considered CCs for one another.
Specific and nonspecific (that is, not otherwise specified
(NOS)) diagnosis codes for the same condition should not be considered
CCs for one another.
Codes for the same condition that cannot coexist, such as
partial/total, unilateral/bilateral, obstructed/unobstructed, and
benign/malignant, should not be considered CCs for one another.
Codes for the same condition in anatomically proximal
sites should not be considered CCs for one another.
Closely related conditions should not be considered CCs
for one another.
The creation of the CC Exclusions List was a major project
involving hundreds of codes. We have continued to review the remaining
CCs to identify additional exclusions and to remove diagnoses from the
master list that have been shown not to meet the definition of a CC.\2\
---------------------------------------------------------------------------
\2\ See the FY 1989 final rule (53 FR 38485, September 30,
1988), for the revision made for the discharges occurring in FY
1989; the FY 1990 final rule (54 FR 36552, September 1, 1989), for
the FY 1990 revision; the FY 1991 final rule (55 FR 36126, September
4, 1990), for the FY 1991 revision; the FY 1992 final rule (56 FR
43209, August 30, 1991) for the FY 1992 revision; the FY 1993 final
rule (57 FR 39753, September 1, 1992), for the FY 1993 revision; the
FY 1994 final rule (58 FR 46278, September 1, 1993), for the FY 1994
revisions; the FY 1995 final rule (59 FR 45334, September 1, 1994),
for the FY 1995 revisions; the FY 1996 final rule (60 FR 45782,
September 1, 1995), for the FY 1996 revisions; the FY 1997 final
rule (61 FR 46171, August 30, 1996), for the FY 1997 revisions; the
FY 1998 final rule (62 FR 45966, August 29, 1997) for the FY 1998
revisions; the FY 1999 final rule (63 FR 40954, July 31, 1998), for
the FY 1999 revisions; the FY 2001 final rule (65 FR 47064, August
1, 2000), for the FY 2001 revisions; the FY 2002 final rule (66 FR
39851, August 1, 2001), for the FY 2002 revisions; the FY 2003 final
rule (67 FR 49998, August 1, 2002), for the FY 2003 revisions; the
FY 2004 final rule (68 FR 45364, August 1, 2003), for the FY 2004
revisions; the FY 2005 final rule (69 FR 49848, August 11, 2004),
for the FY 2005 revisions; the FY 2006 final rule (70 FR 47640,
August 12, 2005), for the FY 2006 revisions; the FY 2007 final rule
(71 FR 47870) for the FY 2007 revisions; the FY 2008 final rule (72
FR 47130) for the FY 2008 revisions, the FY 2009 final rule (73 FR
48510), the FY 2010 final rule (74 FR 43799); and the FY 2011 final
rule (75 FR 50114). In the FY 2000 final rule (64 FR 41490, July 30,
1999, we did not modify the CC Exclusions List because we did not
make any changes to the ICD-9-CM codes for FY 2000.
---------------------------------------------------------------------------
(1) Limited Revisions Based on Changes to the ICD-9-CM Diagnosis Codes
For FY 2012, we proposed to make limited revisions to the CC
Exclusions List to take into account the changes made in the ICD-9-CM
diagnosis coding system effective October 1, 2011. (We refer readers to
section II.G.13. of the preamble of this final rule for a discussion of
ICD-9-CM changes.) We proposed to make these changes in accordance with
the principles established when we created the CC Exclusions List in
1987. In addition, we indicated on the CC Exclusions List some changes
as a result of updates to the ICD-9-CM codes to reflect the exclusion
of codes from being MCCs under the MS-DRG system that we adopted in FY
2008.
CMS encourages input from our stakeholders concerning the annual
IPPS updates when that input is made available to us by December of the
year prior to the next annual proposed rule update. For example, to be
considered for any updates or changes in FY 2012, comments and
suggestions should have been submitted by early December 2010. The
following comments were submitted in a timely manner and, therefore,
are being discussed in this section.
(A) Pressure Ulcer Diagnosis Codes
We received a comment recommending that CMS remove diagnosis codes
707.23 (Pressure ulcer, stage III) and 707.24 (Pressure ulcer, stage
IV) from the CC Exclusion List when reported as a secondary diagnosis
code with a principal diagnosis code for the pressure ulcer site:
Diagnosis code 707.00 (Pressure ulcer, unspecified); diagnosis code
707.01 (Pressure ulcer,
[[Page 51543]]
elbow); diagnosis code 707.02 (Pressure ulcer, upper back); diagnosis
code 707.03 (Pressure ulcer, lower back); diagnosis code 707.04
(Pressure ulcer, hip); diagnosis code 707.05 (Pressure ulcer, buttock);
diagnosis code 707.06 (Pressure ulcer, ankle); diagnosis code 707.07
(Pressure ulcer, heel); or diagnosis code 707.09 (Pressure ulcer, other
site). Currently, when a patient is admitted with a pressure ulcer, the
CC Exclusion List prevents a pressure ulcer stage diagnosis code from
being designated as an MCC when reported as a secondary diagnosis. The
commenter disagreed with this approach and contended that a patient
admitted for treatment of a stage III or stage IV pressure ulcer likely
requires resources that would qualify the case as a diagnosis with an
MCC or, at a minimum, as a CC.
Our clinical advisors agreed with the commenter. Therefore, in the
FY 2012 IPPS/LTCH PPS proposed rule, we proposed to remove diagnosis
codes 707.23 and 707.24 from the CC Exclusion List when a principal
diagnosis code of one of codes 707.00 through 707.09 is reported. Under
this proposal, diagnosis code 707.23 or diagnosis code 707.24 would be
an MCC when reported as a secondary diagnosis code with a principal
diagnosis code of one of codes 707.00 through 707.09.
Comment: Several commenters supported the proposed removal of
diagnosis codes 707.23 and 707.24 from the CC Exclusion list when a
principal diagnosis code of one of the codes 707.00 through 707.09 is
reported.
Response: We appreciate the support of the commenters. As stated
above, we believe this proposed change has merit.
After consideration of the public comments we received, we are
adopting as final our proposal to remove diagnosis codes 707.23
(Pressure ulcer stage III) and 707.24 (Pressure ulcer stage IV) from
the CC Exclusion List when reported as a secondary diagnosis code with
a principal diagnosis code for the pressure ulcer site: diagnosis code
707.00 (Pressure ulcer, unspecified); diagnosis code 707.01 (Pressure
ulcer, elbow); diagnosis code 707.02 (Pressure ulcer, upper back);
diagnosis code 707.03 (Pressure ulcer, lower back); diagnosis code
707.04 (Pressure ulcer, hip); diagnosis code 707.05 (Pressure ulcer,
buttock); diagnosis code 707.06 (Pressure ulcer, ankle); diagnosis code
707.07 (Pressure ulcer, heel); or diagnosis code 707.09 (Pressure
ulcer, other site).
(B) End-Stage Renal Disease Diagnosis Code
We received a suggestion from a commenter that diagnosis code 585.6
(End-stage renal disease) be added to the CC Exclusion List when
reported with a principal diagnosis code of 403.90 (Hypertensive
chronic kidney disease, unspecified, with chronic kidney disease stage
I through stage IV, or unspecified) or diagnosis code 403.91
(Hypertensive chronic kidney disease, unspecified, with chronic kidney
disease stage V or end-stage renal disease). Currently, diagnosis code
585.6 is designated as an MCC.
According to the commenter, diagnosis codes 585.6 and 403.91 are
essentially the same diagnosis but coding guidelines require the
reporting of two codes to identify the stage of chronic kidney disease
when associated with hypertensive chronic kidney disease. The commenter
suggested that there is no need for diagnosis code 585.6 to be
designated as an MCC when reported with a principal diagnosis of
hypertensive chronic kidney disease, stage V or end-stage renal
disease. The commenter also pointed out that, while coding guidelines
would preclude diagnosis codes 403.90 and 585.6 from being reported
together, the MS-DRG GROUPER allows diagnosis code 585.6 to act as an
MCC when reported as a secondary diagnosis with principal diagnosis
code 403.90.
As discussed in the proposed rule, in response to the first issue,
our clinical advisors disagree with the commenter. Diagnosis code
403.91 includes chronic kidney disease stage V or end-stage renal
disease. These are two separate conditions (or stages) that are
identified by two unique codes. Diagnosis code 585.5 identifies stage V
chronic kidney disease and is classified as a CC. Diagnosis code 585.6
identifies end-stage renal disease, is classified as an MCC, and
describes patients who require chronic dialysis. The patients diagnosed
with stage V chronic kidney disease are a different population who
require different resources than those patients who are diagnosed with
end-stage renal disease. Therefore, in the FY 2012 IPPS/LTCH PPS
proposed rule, we did not propose to add diagnosis code 585.6 to the CC
Exclusion List when reported with a principal diagnosis of code 403.91.
On the second issue raised by the commenter, our clinical advisors
agreed. Diagnosis code 403.90 identifies patients with chronic kidney
disease, stages I through IV or unspecified, and diagnosis code 585.6
identifies end-stage renal disease. Our clinical advisors indicate that
the reporting of diagnosis code 585.6 should not be designated as an
MCC in this case. We agreed with the commenter that diagnosis codes
403.90 and 585.6 should not be reported together as instructed by the
Coding Guidelines. Only a code from the 585.1 through 585.4 range
(stages I through IV, or unspecified) should be reported with diagnosis
code 403.90. Diagnosis code 585.6 is the exclusive code that uniquely
identifies end-stage renal disease and should only be reported with
diagnosis code 403.91. Therefore, in the FY 2012 IPPS/LTCH PPS proposed
rule, we proposed to add diagnosis code 585.6 to the CC Exclusion List
when reported with a principal diagnosis code of 403.90.
Comment: Several commenters supported our proposal to add diagnosis
code 585.6 to the CC Exclusion List when reported with a principal
diagnosis code of 403.90.
Response: We appreciate the commenters' support.
After consideration of the public comments we received, we are
adopting as final our proposal to add diagnosis code 585.6 (End stage
renal disease) to the CC Exclusion List when reported with a principal
diagnosis code of 403.90 (Hypertensive chronic kidney disease,
unspecified, with chronic kidney disease stage I through stage IV, or
unspecified).
(C) Hypertensive Chronic Kidney Disease With Chronic Kidney Disease
Stage V or End-Stage Renal Disease Code
We received a comment recommending the addition of diagnosis code
403.91 (Hypertensive chronic kidney disease, unspecified, with chronic
kidney disease stage V or end-stage renal disease) to the CC Exclusion
List when reported as a secondary diagnosis code with principal
diagnosis code 585.6 (End stage renal disease). The commenter stated
that it would be unlikely that diagnosis code 403.91 would be reported
as a secondary diagnosis code with diagnosis code 585.6 as the
principal diagnosis code due to sequencing rules for end-stage renal
disease with hypertension. Currently, diagnosis code 403.91 is
designated as a CC.
Our clinical advisors agreed with the commenter. Therefore, in the
FY 2012 IPPS/LTCH PPS proposed rule, we proposed to add diagnosis code
403.91 to the CC Exclusion List when reported as a secondary diagnosis
code with principal diagnosis code 585.6.
Comment: Several commenters supported our proposal to add diagnosis
code 403.91 to the CC Exclusion List
[[Page 51544]]
when reported as a secondary diagnosis code with principal diagnosis
code 585.6.
Response: We appreciate the commenters' support.
After consideration of the public comments we received, we are
adopting as final our proposal to add diagnosis code 403.91
(Hypertensive chronic kidney disease, unspecified, with chronic kidney
disease stage V or end stage renal disease) to the CC Exclusion List
when reported as a secondary diagnosis code with principal diagnosis
code 585.6 (End stage renal disease).
(2) Suggested Changes to Severity Levels for Encephalopathy
We received a request that we consider changing the following
diagnosis codes from an MCC to a CC:
348.30 (Encephalopathy NOS)
348.31 (Metabolic encephalopathy)
348.39 (Encephalopathy NEC)
349.82 (Toxic encephalopathy)
572.2 (Hepatic encephalopathy)
For the FY 2012 IPPS/LTCH PPS proposed rule, we analyzed the claims
data for the diagnosis codes mentioned above related to encephalopathy.
We used the same approach we used in initially creating the MS-DRGs and
classifying secondary diagnosis codes as non-CCs, CCs, or MCCs. A
detailed discussion of the process and criteria we used in this process
is described in the FY 2008 IPPS final rule (72 FR 47158 through
47161). We refer the readers to this discussion for complete
information on our approach to developing the non-CC, CC, and MCC
lists. Each diagnosis for which Medicare data were available was
evaluated to determine its impact on resource use and to determine the
most appropriate CC subclass (non-CC, CC, or MCC) assignment. In order
to make this determination, the average cost for each subset of cases
was compared to the expected cost for cases in that subset. The
following format was used to evaluate each diagnosis:
--------------------------------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------------------------------------
Code Diagnosis Cnt1 C1 Cnt2 C2 Cnt3 C3
--------------------------------------------------------------------------------------------------------------------------------------------------------
Count (Cnt) is the number of patients in each subset. C1, C2, and
C3 are a measure of the impact on resource use of patients in each of
the subsets. The C1, C2, and C3 values are a measure of the ratio of
average costs for patients with these conditions to the expected
average cost across all cases. The C1 value reflects a patient with no
other secondary diagnosis or with all other secondary diagnoses that
are non-CCs. The C2 value reflects a patient with at least one other
secondary diagnosis that is a CC but none that is a MCC. The C3 value
reflects a patient with at least one other secondary diagnosis that is
a MCC. A value close to 1.0 in the C1 field would suggest that the
diagnosis code produces the same expected value as a non-CC. A value
close to 2.0 suggests the condition is more like a CC than a non-CC but
not as significant in resource usage as an MCC. A value close to 3.0
suggests the condition is expected to consume resources more similar to
an MCC than a CC or non-CC. For additional details on this analysis, we
refer readers to the FY 2008 IPPS final rule (72 FR 47158 through
47161).
The following chart shows the analysis for each of the
encephalopathy diagnosis codes that are currently classified as MCCs.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Cnt 1 Cnt 2 Cnt 3
Code Diagnosis description CC level Cnt 1 impact Cnt 2 impact Cnt 3 impact
--------------------------------------------------------------------------------------------------------------------------------------------------------
34830.................................... Encephalopathy NOS.............. MCC 10,082 2.1206 39,042 2.7774 60,381 3.3702
34831.................................... Metabolic encephalopathy........ MCC 6,389 2.0580 29,651 2.6952 49,343 3.4011
34839.................................... Encephalopathy NEC.............. MCC 4,004 2.1118 15,003 2.7355 19,732 3.3708
34982.................................... Toxic encephalopathy............ MCC 4,333 2.3158 18,126 3.0023 26,009 3.5714
5722..................................... Hepatic encephalopathy.......... MCC 1,375 1.5448 9,885 2.5054 12,421 3.4435
--------------------------------------------------------------------------------------------------------------------------------------------------------
We ran the following data as described in FY 2008 IPPS final rule
(72 FR 47158 through 47161). The C1 value reflects a patient with no
other secondary diagnosis or with all other secondary diagnoses that
are non-CCs. The C2 value reflects a patient with at least one other
secondary diagnosis that is a CC but none that is a MCC. The C3 value
reflects a patient with at least one other secondary diagnosis that is
a MCC.
The chart above shows that the C1 findings ranged from a low of
1.5448 to a high of 2.3158. As stated earlier, a C1 value close to 2.0
suggests the condition is more like a CC than a non-CC but not as
significant in resource usage as an MCC. The C1 findings suggest that
these codes are more like a CC than a MCC. However, the C2 findings
ranged from a low of 2.5054 to a high of 3.0023. Values close to 3.0
suggests the condition is more similar to an MCC than a CC or non-CC.
The C2 findings support maintaining the encephalopathy codes as an MCC
level. The data are clearly mixed between the C1 and C2 findings, and
does not consistently support a change in the severity level. Our
clinical advisers recommended that these encephalopathy codes remain at
an MCC level because these patients with encephalopathy typically
utilize significant resources and are at a higher severity level. Based
on the clinical analysis and the lack of consistent claims data support
for the severity level change, we indicated in the proposed rule that
we believe that the encephalopathy codes should remain on the MCC list.
Therefore, we proposed to retain the following encephalopathy codes on
the MCC list:
348.30 (Encephalopathy NOS)
348.31 (Metabolic encephalopathy)
348.39 (Encephalopathy NEC)
349.82 (Toxic encephalopathy)
572.2 (Hepatic encephalopathy)
We invited public comment on our proposal not to change the
severity level classification for these codes.
Comment: Several commenters supported our proposal not to change
the MCC severity level classification for the encephalopathy codes
listed above. The commenters agreed with our findings that the data
were mixed between the C1 and C2 findings for these codes, which are
currently on the MCC list, and that clinical evaluation of these
conditions supports maintaining them on the MCC list.
Response: We appreciate the commenters' support. As stated above,
our data showed mixed findings for C1 and C2 with C1 findings
supporting a change to CC, but C2 findings supporting maintaining the
codes on the MCC list. Our clinical advisors' evaluation of
encephalopathy patients supports our proposal to maintain these
encephalopathy codes on the MCC list.
[[Page 51545]]
After consideration of the public comments we received, as we
proposed, we are keeping the following encephalopathy codes on the MCC
list.
348.30 (Encephalopathy NOS) MCC
348.31 (Metabolic encephalopathy) MCC
348.39 (Encephalopathy NEC) MCC
349.82 (Toxic encephalopathy) MCC
572.2 (Hepatic encephalopathy) MCC
(3) Suggested Changes to Severity Levels for Mechanical
Complication and Infection Due to Device-Related Codes
We received a request to change the severity classification from
CCs to MCCs for the following diagnosis codes:
996.01 (Mechanical of cardiac device, implant and graft
due to cardiac pacemaker (electrode)).
996.04 (Mechanical complication of cardiac device,
implant, and graft due to automatic implantable cardiac defibrillator).
996.61 (Infection and inflammatory reaction due to
internal prosthetic device, implant, and graft due to cardiac device,
implant, and graft).
Currently, all three diagnosis codes are classified as a CC. For
the FY 2012 IPPS/LTCH PPS proposed rule, we analyzed claims data using
the methodology described previously in this section for these
diagnosis codes. The following chart shows our findings:
--------------------------------------------------------------------------------------------------------------------------------------------------------
Cnt 1 Cnt 2 Cnt 3
Code Diagnosis description CC Level Cnt 1 Impact Cnt 2 Impact Cnt 3 Impact
--------------------------------------------------------------------------------------------------------------------------------------------------------
99601.................................. Malfunc cardiac pacemaker........ CC 1,296 1.6723 1,920 2.4332 1,333 3.1134
99604.................................. Mch cmp autm mplnt dfbrl......... CC 419 1.7041 1,032 2.5190 660 3.1508
99661.................................. React-cardiac dev/graft.......... CC 149 1.9922 633 2.8134 1,253 3.5036
--------------------------------------------------------------------------------------------------------------------------------------------------------
We reviewed the findings from these data. The C1 findings ranged
from a low of 1.6723 to a high of 1.9922. As stated earlier, a value
close to 2.0 in the C1 field suggests that the condition is more like a
CC than a non-CC but not as significant in resource usage as an MCC.
The C1 findings clearly support the current classification of these
three codes on the CC list and the C2 findings supports this
classification. Our clinical advisors agree that the data findings and
their own clinical evaluation of the severity level of these conditions
support the classification of these three codes on the CC list.
Therefore, we proposed that these codes remain on the CC list. We
invited public comment on this proposal.
Comment: Several commenters supported our proposal to maintain the
mechanical complication and infection due to device-related codes
mentioned above on the CC list. The commenters agreed that the data as
well as our clinical advisors' evaluation support the current
classification.
Several commenters opposed our proposal to keep the mechanical
complication and infection due to device-related codes on the CC list.
In support of their position, the commenters cited our decision to keep
the encephalopathy codes on the MCC list. They pointed out that the
encephalopathy codes had C1 findings of a low of 1.5448 to a high of
2.3158 and C2 findings of a low of 2.5054 to a high of 3.0023, yet they
were maintained on the MCC list. The commenters believed that the same
logic should be applied to the mechanical complication and infection
due to device-related codes which had C1 findings of a low of 1.6723 to
a high of 1.9922 and C2 findings of a low of 2.4332 to a high of
2.8134. One commenter also offered data from the Healthcare Utilization
Project (HCUP) database which showed 2008 national statistics of
average costs for patients admitted with one of these codes as a
principal diagnosis. This commenter stated that these data showed
average costs as follows:
2008 National Statistics--Principal Diagnosis Only Ranked by Costs, Descending Order: Medicare Only
----------------------------------------------------------------------------------------------------------------
Total number of Length of stay
ICD-9-CM Principal diagnosis code discharges (LOS) (mean) Charges $ (mean) Costs $ (mean)
----------------------------------------------------------------------------------------------------------------
996.61--React-Cardiac Dev/Graft......... 8,944 10.7 95,251 26,893
996.04--Mch Comp Aut, Mplnt Dfbri....... 8,095 3.2 59,924 16,891
996.01--Malfunc Cardiac Pacemake........ 8,664 2.8 37,056 11,044
427.5--Cardiac Arrest................... 4,781 3.6 35,499 10,908
349.82--Toxic Encephalopathy............ 6,835 6.5 37,913 10,765
428.23--Ac On Chr Syst Hrt Fail......... 75,511 5.8 33,732 10,689
428.1--Left Heart Failure............... 2,261 5.1 26,777 10,252
348.39--Encephalopathy Nec.............. 4,880 6.3 32,124 9,609
428.31--Ac Diastolic Hrt Failure........ 37,216 5.5 30,167 9,298
348.30--Encephalopathy Nos.............. 11,057 5.9 31,933 9,232
572.2--Hepatic encephalopathy........... 20,154 5.4 28,056 8,580
----------------------------------------------------------------------------------------------------------------
The commenter stated that these data support changing these codes
to the MCC list since the costs associated with these admissions were
higher than admissions for encephalopathy.
Response: We agree with the commenters who supported maintaining
the current CC severity level for the mechanical complication and
infection due to device related codes. As discussed above the C1 and C2
findings as well as the advice of our clinical advisors supports this
recommendation.
We disagree with the commenters who made comparisons to our
proposals for the encephalopathy codes. The encephalopathy codes had C1
findings of a low of 1.5448 to a high of 2.3158 and C2 findings of a
low of 2.5054 to a high of 3.0023. The encephalopathy codes C1 findings
supported a change to a CC level. The C2 findings of a high of 3.0023
support the current MCC assignment for those codes.
The mechanical complication and infection due to device-related
codes had C1 findings of a low of 1.6723 and
[[Page 51546]]
a high of 1.9922, which are more like a CC than a non-CC but not as
significant in resource usage as an MCC. The C2 findings of a low of
2.4332 and a high of 2.8134 are also supportive of a CC classification
because, while one was a high of 2.8134, the other was only 2.4332.
Only one of the codes had a finding that approached 3.0 and neither
exceeded 3.0. Furthermore, our clinical advisors' evaluation of data on
patients with encephalopathy as a secondary diagnosis indicates that
these patients are at a higher severity level. Our clinical advisors
did not believe that patients who have one of the mechanical
complication and infection due to device-related codes as a secondary
diagnoses would require resources justifying the MCC severity level.
We point out that the data that the commenter shared focused on
patients admitted for either a mechanical complication or infection due
to device-related code or for encephalopathy. In other words, these
conditions were the principal diagnosis in this data. These cases did
not report the codes as secondary diagnoses. Our clinical criteria are
based on these conditions being reported as a secondary diagnosis and
the effect that has on all types of admissions. A detailed discussion
of the process and criteria we used in this process is described in the
FY 2008 IPPS final rule with comment period (72 FR 47158 through
47161). It may well make a difference in the overall costs of the
admission if a patient were admitted for these types of complications
and required a pacemaker insertion during the stay. Clearly, the
encephalopathy cases would not have had a device inserted. Therefore,
it is not possible to determine the effect of the impact of these
conditions as a secondary diagnosis based on these data because the
additional costs of a device is included. Our approach isolates the
effect of the individual code on all types of admissions when it is
reported as a secondary diagnosis. It also looks at whether this code
is the only CC or MCC reported (C1 cases), reported with another CC
diagnosis (C2 cases), or reported with another MCC diagnosis (C3). We
cannot determine what, if any, secondary diagnoses were present for the
cases shown in the HCUP data shown above.
We believe our consistent approach to evaluating the effect of a
secondary diagnosis is more appropriate than looking at average costs
when the condition is reported as a principal diagnosis in establishing
the severity level of these codes. Modifying the approach by also
looking at the principal diagnosis would significantly modify our
current approach that focuses solely on evaluating the impact of
secondary diagnoses on increasing the severity of the overall
admission. We also note that our clinical advisors' evaluation of these
cases, who advised that the codes should remain on the CC lists,
supports the findings of the data and maintaining the codes on the CC
list.
After consideration of the public comments we received, as we
proposed, we are maintain the mechanical complication and infection due
to device-related codes listed below on the CC list for FY 2012.
996.01 (Mechanical of cardiac device, implant and graft
due to cardiac pacemaker (electrode))--CC
996.04 (Mechanical complication of cardiac device,
implant, and graft due to automatic implantable cardiac
defibrillator)--CC
996.61 (Infection and inflammatory reaction due to
internal prosthetic device, implant, and graft due to cardiac device,
implant, and graft)--CC
Tables 6G and 6H, Additions to and Deletions from the CC Exclusion
List, respectively, which are effective for discharges occurring on or
after October 1, 2011, are not being published in the Addendum to this
final rule because of the length of the two tables. Instead, we are
making them available through the Internet on the CMS Web site at:
http://www.cms.hhs.gov/AcuteInpatientPPS. Each of these principal
diagnoses for which there is a CC exclusion is shown in Tables 6G and
6H, which are listed in section VI. of the Addendum to this final rule
(and available via the Internet) with an asterisk, and the conditions
that will not count as a CC, are provided in an indented column
immediately following the affected principal diagnosis.
A complete updated MCC, CC, and Non-CC Exclusions List is also
available through the Internet on the CMS Web site at: http://www.cms.hhs.gov/AcuteInpatientPPS. Beginning with discharges on or
after October 1, 2011, the indented diagnoses will not be recognized by
the GROUPER as valid CCs for the asterisked principal diagnosis.
To assist readers in identifying the changes to the MCC and CC
lists that occurred as a result of updates to the ICD-9-CM codes, as
described in Tables 6A, 6C, and 6E, which are listed in section VI. of
the Addendum to this final rule and available via the Internet, we are
providing the following summaries of those MCC and CC changes for FY
2012.
Summary of Additions to the MS-DRG MCC List--Table 6I.1
------------------------------------------------------------------------
Code Description
------------------------------------------------------------------------
284.11................................ Antineoplastic chemotherapy
induced pancytopenia.
284.12................................ Other drug-induced pancytopenia.
348.82................................ Brain death.
415.13................................ Saddle embolus of pulmonary
artery.
444.01................................ Saddle embolus of abdominal
aorta.
488.81................................ Influenza due to identified
novel influenza A virus with
pneumonia.
516.4................................. Lymphangioleiomyomatosis.
516.61................................ Neuroendocrine cell hyperplasia
of infancy.
516.62................................ Pulmonary interstitial
glycogenosis.
516.63................................ Surfactant mutations of the
lung.
516.64................................ Alveolar capillary dysplasia
with vein misalignment.
516.69................................ Other interstitial lung diseases
of childhood.
518.51................................ Acute respiratory failure
following trauma and surgery.
518.52................................ Other pulmonary insufficiency,
not elsewhere classified,
following trauma and surgery.
518.53................................ Acute and chronic respiratory
failure following trauma and
surgery.
747.31................................ Pulmonary artery coarctation and
atresia.
747.32................................ Pulmonary arteriovenous
malformation.
747.39................................ Other anomalies of pulmonary
artery and pulmonary
circulation.
808.54................................ Multiple open pelvic fractures
without disruption of pelvic
circle.
998.01................................ Postoperative shock,
cardiogenic.
[[Page 51547]]
998.02................................ Postoperative shock, septic.
998.09................................ Postoperative shock, other.
------------------------------------------------------------------------
Summary of Deletions From the MS-DRG MCC List--Table 6I.2
------------------------------------------------------------------------
Code Description
------------------------------------------------------------------------
518.5................................. Pulmonary insufficiency
following trauma and surgery.
747.3................................. Anomalies of pulmonary artery.
------------------------------------------------------------------------
Summary of Additions to the MS-DRG CC List--Table 6J.1
------------------------------------------------------------------------
Code Description
------------------------------------------------------------------------
284.19................................ Other pancytopenia.
286.52................................ Acquired hemophilia.
286.53................................ Antiphospholipid antibody with
hemorrhagic disorder.
286.59................................ Other hemorrhagic disorder due
to intrinsic circulating
anticoagulants, antibodies, or
inhibitors.
294.21................................ Dementia, unspecified, with
behavioral disturbance.
358.30................................ Lambert-Eaton syndrome,
unspecified.
358.31................................ Lambert-Eaton syndrome in
neoplastic disease.
358.39................................ Lambert-Eaton syndrome in other
diseases classified elsewhere.
425.11................................ Hypertrophic obstructive
cardiomyopathy.
425.18................................ Other hypertrophic
cardiomyopathy.
444.09................................ Other arterial embolism and
thrombosis of abdominal aorta.
512.2................................. Postoperative air leak.
512.81................................ Primary spontaneous
pneumothorax.
512.82................................ Secondary spontaneous
pneumothorax.
512.83................................ Chronic pneumothorax.
512.84................................ Other air leak.
512.89................................ Other pneumothorax.
516.33................................ Acute interstitial pneumonitis.
516.35................................ Idiopathic lymphoid interstitial
pneumonia.
516.36................................ Cryptogenic organizing
pneumonia.
516.37................................ Desquamative interstitial
pneumonia.
516.5................................. Adult pulmonary Langerhans cell
histiocytosis.
539.01................................ Infection due to gastric band
procedure.
539.09................................ Other complications of gastric
band procedure.
539.81................................ Infection due to other bariatric
procedure.
539.89................................ Other complications of other
bariatric procedure.
596.81................................ Infection of cystostomy.
596.82................................ Mechanical complication of
cystostomy.
596.83................................ Other complication of
cystostomy.
808.44................................ Multiple closed pelvic fractures
without disruption of pelvic
circle.
996.88................................ Complications of transplanted
organ, stem cell.
997.32................................ Postprocedural aspiration
pneumonia.
997.41................................ Retained cholelithiasis
following cholecystectomy.
997.49................................ Other digestive system
complications.
998.00................................ Postoperative shock,
unspecified.
999.32................................ Bloodstream infection due to
central venous catheter.
999.33................................ Local infection due to central
venous catheter.
999.34................................ Acute infection following
transfusion, infusion, or
injection of blood and blood
products.
999.41................................ Anaphylactic reaction due to
administration of blood and
blood products.
999.42................................ Anaphylactic reaction due to
vaccination.
999.49................................ Anaphylactic reaction due to
other serum.
999.51................................ Other serum reaction due to
administration of blood and
blood products.
999.52................................ Other serum reaction due to
vaccination.
999.59................................ Other serum reaction.
------------------------------------------------------------------------
Summary of Deletions From the MS-DRG CC List--Table 6J.2
------------------------------------------------------------------------
Code Description
------------------------------------------------------------------------
284.1................................. Pancytopenia.
286.5................................. Hemorrhagic disorder due to
intrinsic circulating
anticoagulants.
425.1................................. Hypertrophic obstructive
cardiomyopathy.
444.0................................. Embolism and thrombosis of
abdominal aorta.
512.8................................. Other spontaneous pneumothorax.
516.3................................. Idiopathic fibrosing alveolitis.
[[Page 51548]]
997.4................................. Digestive system complications.
998.0................................. Postoperative shock.
999.4................................. Anaphylactic shock due to serum.
999.5................................. Other serum reaction.
------------------------------------------------------------------------
Alternatively, the complete documentation of the GROUPER logic,
including the current CC Exclusions List, is available from 3M/Health
Information Systems (HIS), which, under contract with CMS, is
responsible for updating and maintaining the GROUPER program. The
current MS-DRG Definitions Manual, Version 28.0, is available on a CD
for $225.00. Version 29.0 of this manual, which will include the final
FY 2012 MS-DRG changes, will be available on a CD for $225.00. These
manuals may be obtained by writing 3M/HIS at the following address: 100
Barnes Road, Wallingford, CT 06492; or by calling (203) 949-0303, or by
obtaining an order form at the Web site: http://www.3MHIS.com. Please
specify the revision or revisions requested.
12. Review of Procedure Codes in MS DRGs 981 Through 983; 984 Through
986; and 987 Through 989
Each year, we review cases assigned to former CMS DRG 468
(Extensive O.R. Procedure Unrelated to Principal Diagnosis), CMS DRG
476 (Prostatic O.R. Procedure Unrelated to Principal Diagnosis), and
CMS DRG 477 (Nonextensive O.R. Procedure Unrelated to Principal
Diagnosis) to determine whether it would be appropriate to change the
procedures assigned among these CMS DRGs. Under the MS-DRGs that we
adopted for FY 2008, CMS DRG 468 was split three ways and became MS-
DRGs 981, 982, and 983 (Extensive O.R. Procedure Unrelated to Principal
Diagnosis with MCC, with CC, and without CC/MCC, respectively). CMS DRG
476 became MS-DRGs 984, 985, and 986 (Prostatic O.R. Procedure
Unrelated to Principal Diagnosis with MCC, with CC, and without CC/MCC,
respectively). CMS DRG 477 became MS-DRGs 987, 988, and 989
(Nonextensive O.R. Procedure Unrelated to Principal Diagnosis with MCC,
with CC, and without CC/MCC, respectively).
MS-DRGs 981 through 983, 984 through 986, and 987 through 989
(formerly CMS DRGs 468, 476, and 477, respectively) are reserved for
those cases in which none of the O.R. procedures performed are related
to the principal diagnosis. These MS-DRGs are intended to capture
atypical cases, that is, those cases not occurring with sufficient
frequency to represent a distinct, recognizable clinical group. MS-DRGs
984 through 986 (previously CMS DRG 476) are assigned to those
discharges in which one or more of the following prostatic procedures
are performed and are unrelated to the principal diagnosis:
60.0, Incision of prostate
60.12, Open biopsy of prostate
60.15, Biopsy of periprostatic tissue
60.18, Other diagnostic procedures on prostate and
periprostatic tissue
60.21, Transurethral prostatectomy
60.29, Other transurethral prostatectomy
60.61, Local excision of lesion of prostate
60.69, Prostatectomy, not elsewhere classified
60.81, Incision of periprostatic tissue
60.82, Excision of periprostatic tissue
60.93, Repair of prostate
60.94, Control of (postoperative) hemorrhage of prostate
60.95, Transurethral balloon dilation of the prostatic urethra
60.96, Transurethral destruction of prostate tissue by
microwave thermotherapy
60.97, Other transurethral destruction of prostate tissue by
other thermotherapy
60.99, Other operations on prostate
All remaining O.R. procedures are assigned to MS-DRGs 981 through
983 and 987 through 989, with MS-DRGs 987 through 989 assigned to those
discharges in which the only procedures performed are nonextensive
procedures that are unrelated to the principal diagnosis.\3\
---------------------------------------------------------------------------
\3\ The original list of the ICD-9-CM procedure codes for the
procedures we consider nonextensive procedures, if performed with an
unrelated principal diagnosis, was published in Table 6C in section
IV. of the Addendum to the FY 1989 final rule (53 FR 38591). As part
of the FY 1991 final rule (55 FR 36135), the FY 1992 final rule (56
FR 43212), the FY 1993 final rule (57 FR 23625), the FY 1994 final
rule (58 FR 46279), the FY 1995 final rule (59 FR 45336), the FY
1996 final rule (60 FR 45783), the FY 1997 final rule (61 FR 46173),
and the FY 1998 final rule (62 FR 45981), we moved several other
procedures from DRG 468 to DRG 477, and some procedures from DRG 477
to DRG 468. No procedures were moved in FY 1999, as noted in the
final rule (63 FR 40962); in FY 2000 (64 FR 41496); in FY 2001 (65
FR 47064); or in FY 2002 (66 FR 39852). In the FY 2003 final rule
(67 FR 49999) we did not move any procedures from DRG 477. However,
we did move procedure codes from DRG 468 and placed them in more
clinically coherent DRGs. In the FY 2004 final rule (68 FR 45365),
we moved several procedures from DRG 468 to DRGs 476 and 477 because
the procedures are nonextensive. In the FY 2005 final rule (69 FR
48950), we moved one procedure from DRG 468 to 477. In addition, we
added several existing procedures to DRGs 476 and 477. In the FY
2006 (70 FR 47317), we moved one procedure from DRG 468 and assigned
it to DRG 477. In FY 2007, we moved one procedure from DRG 468 and
assigned it to DRGs 479, 553, and 554. In FYs 2008, 2009, FY 2010,
and FY 2011, no procedures were moved, as noted in the FY 2008 final
rule with comment period (72 FR 46241), the FY 2009 final rule (73
FR 48513), the FY 2010 final rule (74 FR 43796); and the FY 2011
final rule (75 FR 50122).
---------------------------------------------------------------------------
Our review of MedPAR claims data showed that there were no cases
that merited movement or should logically be assigned to any of the
other MDCs. Therefore, for FY 2012, we did not propose to change the
procedures assigned among these MS-DRGs.
We did not receive any public comments on this proposal. Therefore,
as we proposed, we are not making any changes to the procedures
assigned to MS-DRGs 981 through 983, 984 through 986, and 987 through
989 for FY 2012.
a. Moving Procedure Codes From MS-DRGs 981 Through 983 or MS-DRGs 987
Through 989 Into MDCs
We annually conduct a review of procedures producing assignment to
MS-DRGs 981 through 983 (Extensive O.R. procedure unrelated to
principal diagnosis with MCC, with CC, and without CC.MCC,
respectively) or MS-DRGs 987 through 989 (Nonextensive O.R. procedure
unrelated to principal diagnosis with MCC, with CC, and without CC/MCC,
respectively) on the basis of volume, by procedure, to see if it would
be appropriate to move procedure codes out of these MS-DRGs into one of
the surgical MS-DRGs for the MDC into which the principal diagnosis
falls. The data are arrayed in two ways for comparison purposes. We
look at a frequency count of each major operative procedure code. We
also compare procedures across MDCs by volume of procedure codes within
each MDC.
We identify those procedures occurring in conjunction with certain
principal diagnoses with sufficient frequency to justify adding them to
one of the surgical MS-DRGs for the MDC in
[[Page 51549]]
which the diagnosis falls. As noted above, there were no cases that
merited movement or that should logically be assigned to any of the
other MDCs. Therefore, for FY 2012, we did not propose to remove any
procedures from MS-DRGs 981 through 983 or MS-DRGs 987 through 989 into
one of the surgical MS-DRGs for the MDC into which the principal
diagnosis is assigned.
We did not receive any public comments on our proposal. Therefore,
as we proposed, we are not making any changes to the procedures
assigned to MS-DRGs 981 through 983 or 987 through 989 for FY 2012.
b. Reassignment of Procedures Among MS-DRGs 981 Through 983, 984
Through 986, and 987 Through 989
We also annually review the list of ICD-9-CM procedures that, when
in combination with their principal diagnosis code, result in
assignment to MS-DRGs 981 through 983, 984 through 986 (Prostatic O.R.
procedure unrelated to principal diagnosis with MCC, with CC, or
without CC/MCC, respectively), and 987 through 989, to ascertain
whether any of those procedures should be reassigned from one of these
three MS-DRGs to another of the three MS-DRGs based on average charges
and the length of stay. We look at the data for trends such as shifts
in treatment practice or reporting practice that would make the
resulting MS-DRG assignment illogical. If we find these shifts, we
would propose to move cases to keep the MS-DRGs clinically similar or
to provide payment for the cases in a similar manner. Generally, we
move only those procedures for which we have an adequate number of
discharges to analyze the data.
There were no cases representing shifts in treatment practice or
reporting practice that would make the resulting MS-DRG assignment
illogical, or that merited movement so that cases should logically be
assigned to any of the other MDCs. Therefore, for FY 2012, we did not
propose to move any procedure codes among these MS-DRGs.
We did not receive any public comments on our proposal. Therefore,
as we proposed, we are not moving any procedures assigned to MS-DRGs
981 through 983, 984 through 986, and 987 through 989 for FY 2012.
c. Adding Diagnosis or Procedure Codes to MDCs
Based on the review of cases in the MDCs as described above in
sections III.G.12.a. and b., we did not propose to add any diagnosis or
procedure codes to MDCs for FY 2012.
We did not receive any public comments on our proposal. Therefore,
as we proposed, we are not adding any diagnosis or procedure codes to
MDCs for FY 2012.
13. Changes to the ICD-9-CM Coding System, Including Discussion of the
Replacement of the ICD-9-CM Coding System With the ICD-10-CM and ICD-
10-PCS Systems in FY 2014
a. ICD-9-CM Coding System
As described in section II.B.1. of the preamble of this final rule,
the ICD-9-CM is a coding system currently used for the reporting of
diagnoses and procedures performed on a patient. In September 1985, the
ICD-9-CM Coordination and Maintenance Committee was formed. This is a
Federal interdepartmental committee, co-chaired by the National Center
for Health Statistics (NCHS), the Centers for Disease Control and
Prevention, and CMS, charged with maintaining and updating the ICD-9-CM
system. The Committee is jointly responsible for approving coding
changes, and developing errata, addenda, and other modifications to the
ICD-9-CM to reflect newly developed procedures and technologies and
newly identified diseases. The Committee is also responsible for
promoting the use of Federal and non-Federal educational programs and
other communication techniques with a view toward standardizing coding
applications and upgrading the quality of the classification system.
The Official Version of the ICD-9-CM contains the list of valid
diagnosis and procedure codes. (The Official Version of the ICD-9-CM is
available from the Government Printing Office on CD-ROM for $19.00 by
calling (202) 512-1800.) Complete information on ordering the CD-ROM is
also available at: http://www.cms.hhs.gov/ICD9ProviderDiagnosticCodes/05_CDROM.asp#TopOfPage. The Official Version of the ICD-9-CM is no
longer available in printed manual form from the Federal Government; it
is only available on CD-ROM. Users who need a paper version are
referred to one of the many products available from publishing houses.
The NCHS has lead responsibility for the ICD-9-CM diagnosis codes
included in the Tabular List and Alphabetic Index for Diseases, while
CMS has lead responsibility for the ICD-9-CM procedure codes included
in the Tabular List and Alphabetic Index for Procedures.
The Committee encourages participation in the above process by
health-related organizations. In this regard, the Committee holds
public meetings for discussion of educational issues and proposed
coding changes. These meetings provide an opportunity for
representatives of recognized organizations in the coding field, such
as the American Health Information Management Association (AHIMA), the
American Hospital Association (AHA), and various physician specialty
groups, as well as individual physicians, health information management
professionals, and other members of the public, to contribute ideas on
coding matters. After considering the opinions expressed at the public
meetings and in writing, the Committee formulates recommendations,
which then must be approved by the agencies.
The Committee presented proposals for coding changes for
implementation in FY 2012 at a public meeting held on September 15-16,
2010 and finalized the coding changes after consideration of comments
received at the meetings and in writing by November 19, 2010. Those
coding changes were announced in Tables 6A through 6F, which were
listed in section VI. of the Addendum to the proposed rule and
available via the Internet.
The Committee held its 2011 meeting on March 9-10, 2011. New codes
for which there was a consensus of public support and for which
complete tabular and indexing changes were made by May 2011 are
included in the October 1, 2011 update to ICD-9-CM. Code revisions that
were discussed at the March 9-10, 2011 Committee meeting but that could
not be finalized in time to include them in the tables listed in
section VI. of the Addendum to the proposed rule are included in Tables
6A through 6F, which are listed in section VI. of the Addendum to this
final rule and available via the Internet, and are marked with an
asterisk (*).
Copies of the minutes of the procedure codes discussions at the
Committee's September 15-16, 2010 meeting and March 9-10, 2011 meeting
can be obtained from the CMS Web site at: http://cms.hhs.gov/ICD9ProviderDiagnosticCodes/03_meetings.asp. The minutes of the
diagnosis codes discussions at the September 15-16, 2010 meeting and
March 9-10, 2011 meeting are found at: http://www.cdc.gov/nchs/icd.htm.
These Web sites also provide detailed information about the Committee,
including information on requesting a new code, attending a Committee
meeting, and timeline requirements and meeting dates.
We encourage commenters to address suggestions on coding issues
involving
[[Page 51550]]
diagnosis codes to: Donna Pickett, Co-Chairperson, ICD-9-CM
Coordination and Maintenance Committee, NCHS, Room 2402, 3311 Toledo
Road, Hyattsville, MD 20782. Comments may be sent by E-mail to:
[email protected].
Questions and comments concerning the procedure codes should be
addressed to: Patricia E. Brooks, Co-Chairperson, ICD-9-CM Coordination
and Maintenance Committee, CMS, Center for Medicare Management,
Hospital and Ambulatory Policy Group, Division of Acute Care, C4-08-06,
7500 Security Boulevard, Baltimore, MD 21244-1850. Comments may be sent
by E-mail to: [email protected].
The ICD-9-CM code changes that have been approved will become
effective October 1, 2011. The new ICD-9-CM codes are listed, along
with their MS-DRG classifications, in Tables 6A and 6B (New Diagnosis
Codes and New Procedure Codes, respectively), which are listed in
section VI. of the Addendum to this final rule and available via the
Internet. As we stated above, the code numbers and their titles were
presented for public comment at the ICD-9-CM Coordination and
Maintenance Committee meetings. Both oral and written comments were
considered before the codes were approved.
In the FY 2012 IPPS/LTCH PPS proposed rule, we solicited comments
on the proposed classification of these new codes, which were shown in
Tables 6A and 6B listed in section VI. of the Addendum to the proposed
rule and available via the Internet.
Comment: Several commenters generally supported the proposed
changes to the MS-DRG classifications. One commenter supported the non-
CC designation for the following new diagnosis codes: 282.40
(Thalassemia, unspecified); 282.43 (Alpha thalassemia); code 282.44
(Beta thalassemia); 282.45 (Delta-beta thalassemia); 282.46
(Thalassemia minor); 282.47 (Hemoglobin E-beta Thalassemia); 516.31
(Idiopathic pulmonary fibrosis); 516.32 (Idiopathic non-specific
interstitial pneumonitis); and 516.34 (Respiratory bronchiolitis
interstitial lung disease). The commenter also supported the non-CC
designation for and the assignment of code 573.5 (Hepatopulmonary
syndrome) in MDC 4, MS-DRGs 205 and 206 (Other Respiratory System
Diagnoses with and without MCC, respectively).
However, the commenter did not support the non-CC designation of
code 294.21 (Dementia, unspecified, with behavioral disturbance). The
commenter noted that a similar diagnosis with behavioral disturbance
such as code 294.11 (Dementia in conditions classified elsewhere with
behavioral disturbance) is designated as a CC and questioned why the
same logic had not been considered for code 294.21.
Response: Our medical advisors agree with the commenter's
assessment that diagnosis code 294.21 should qualify as a CC, similar
to code 294.11. Both codes identify dementia with behavioral
disturbance and use similar resource use. Therefore, in this final
rule, we are changing the proposed non-CC designation for code 294.21
and classifying it as a CC in Table 6A. This change is reflected in
Table 6A of this final rule which is available via the Internet on the
CMS Web site.
Comment: One commenter did not support the non-CC designation for
diagnosis code 414.4 (Coronary atherosclerosis due to calcified
coronary lesion). The commenter stated that this code should be
designated as a CC, the same designation assigned to diagnosis code
414.02 (Coronary atherosclerosis of autologous vein bypass graft) and
diagnosis code 414.03 (Coronary atherosclerosis of nonautologous
biological bypass graft).
Response: Our medical advisors do not agree with the commenter.
According to our medical advisors, diagnosis code 414.4 is similar to
code 414.01 (Coronary atherosclerosis of native coronary artery) which
is not designated as a CC. Both codes indicate general atherosclerosis
and are not similar to codes 414.02 and 414.03, which indicate
atherosclerosis of an artery that has been replaced by graft.
Therefore, we are not making any modifications to the proposed non-CC
designation for code 414.4.
Comment: One commenter supported the CC designation for the
following diagnosis codes: 425.11(Hypertrophic obstructive
cardiomyopathy); 425.18 (Other hypertrophic cardiomyopathy); 512.2
(Postoperative air leak); 512.81 (Primary spontaneous pneumothorax);
512.82 (Secondary spontaneous pneumothorax); 512.83 (Chronic
pneumothorax); 512.84 (Other air leak); 512.89 (Other pneumothorax);
516.35 (Idiopathic lymphoid interstitial pneumonia); 516.36
(Cryptogenic organizing pneumonia); and 516.37 (Desquamative
interstitial pneumonia). Some commenters supported the CC designations
for code 998.00 (Postoperative shock, unspecified).
One commenter representing a national medical specialty society for
neurology supported our proposed CC designations for codes 358.30
(Lambert-Eaton syndrome, unspecified); 358.31 (Lambert-Eaton syndrome
in neoplastic disease); and 358.39 (Lambert-Eaton syndrome in other
diseases classified elsewhere). The commenter stated that Lambert-Eaton
syndrome is increasingly diagnosed and not always a paraneoplastic
syndrome.
One commenter supported the CC designation for code 348.82 (Brain
death), while another commenter did not support this proposed
designation. The commenter that did not support the proposal stated
that this code should be designated as an MCC.
Response: Our medical advisors agree with the commenter that code
348.82 should be designated as a MCC because this diagnosis requires
extensive intensive care resources. Therefore, in this final rule, we
are amending the proposed CC designation of code 348.82 (Brain death)
to MCC for FY 2012 in Table 6A. This change is reflected in Table 6A in
this final rule which is available via the Internet on the CMS Web
site.
Comment: One commenter did not support the CC designation for code
516.30 (Idiopathic interstitial pneumonia, not other specified). The
commenter did not see the differences among codes 516.30, 516.31
(Idiopathis pulmonary fibrosis), and 516.32 (Idiopathic nonspecific
interstitial pneumonitis), recognizing that the nonspecific code is
designated as a CC while the more specific codes are not designated as
CCs.
Response: We agree with the commenter that code 516.30 should not
be designated as a CC because this code identifies an unspecified
pneumonia which is more reflective of a non-CC. Therefore, in this
final rule, we are amending the proposed CC designation for of code
516.30 (Idiopathic interstitial pneumonia, not other specified) to non-
CC for FY 2012 in Table 6A. This change is reflected in Table 6A,
which, for this final rule, is available via the Internet on the CMS
Web site.
Comment: Several commenters supported the MCC designation for the
following diagnosis codes: 284.11 (Antineoplastic chemotherapy induced
pancytopenia); 284.12 (Other drug induced pancytopenia);
488.81(Influenza due to identified novel influenza A virus with
pneumonia); 998.01 (Postoperative shock, cardiogenic); 998.02
(Postoperative shock, septic); and 998.09 (Postoperative shock, other).
In addition, one commenter supported the MCC designation for the
following diagnosis codes: 518.51 (Acute respiratory failure following
trauma and surgery); 518.52 (Other pulmonary insufficiency, not
elsewhere classified);
[[Page 51551]]
and 518.53 (Acute and chronic respiratory failure following trauma and
surgery).
Response: We appreciate the commenters' support.
Comment: One commenter representing a national organization for
orthopedic surgeons did not support the proposed MCC designation for
diagnosis code 415.13 (Saddle embolus of pulmonary artery). The
commenter stated that this designation is clinically inaccurate as a
saddle embolus is a subcategory of deep vein thrombosis/pulmonary
embolism.
Response: Our medical advisors do not agree with the commenter's
assessment that this diagnosis code does not warrant an MCC
designation. The diagnosis of saddle embolus is life-threatening,
requiring intensive care resources. Therefore, we are not making any
modifications to the proposed MCC designation for code 415.13. We point
out that diagnosis codes 415.11 (Iatrogenic pulmonary embolism and
infarction), 415.12 (Septic pulmonary embolism) and 415.19 (Other
Pulmonary embolism and infarction) are designated as MCCs.
Comment: One commenter suggested that, as new codes are added to
the MS-DRG classification, the new codes be assigned to the same MS-DRG
classification as its predecessor code.
Response: CMS' longstanding practice has been, where possible, to
assign new ICD-9-CM codes to the same MS-DRGs(s) as their predecessor
code.
Comment: One commenter supported the proposed MS-DRG assignment to
MS-DRG 264 (Other Circulatory System O.R. Procedures) for procedure
code 38.26 (Insertion of implantable pressure sensor without lead for
intracardiac or great vessel hemodynamic monitoring). Another commenter
supported the surgical classification of procedure code 68.24 (Uterine
artery embolization [UAE] with coils) and code 68.25 (Uterine artery
embolization [UAE] without coils).
Response: We appreciate the support of the commenters.
For codes that have been replaced by new or expanded codes, the
corresponding new or expanded diagnosis codes are included in Table 6A,
which is listed in section VI. of the Addendum to this final rule and
available via the Internet. New procedure codes are shown in Table 6B,
which is listed in section VI. of the Addendum to this final rule and
available via the Internet. Diagnosis codes that have been replaced by
expanded codes or other codes or have been deleted are in Table 6C
(Invalid Diagnosis Codes), which is listed in section VI. of the
Addendum to this final rule and available via the Internet. These
invalid diagnosis codes will not be recognized by the GROUPER beginning
with discharges occurring on or after October 1, 2011. Table 6D, which
is listed in section VI. of the Addendum to this final rule and
available via the Internet, contains invalid procedure codes. These
invalid procedure codes will not be recognized by the GROUPER beginning
with discharges occurring on or after October 1, 2011. Revisions to
diagnosis code titles are in Table 6E (Revised Diagnosis Code Titles),
which is listed in section VI. of the Addendum to this final rule and
available via the Internet, and also includes the MS-DRG assignments
for these revised codes. Table 6F, which is listed in section VI. of
the Addendum to this final rule and available via the Internet includes
revised procedure code titles for FY 2012.
In the September 7, 2001 final rule implementing the IPPS new
technology add-on payments (66 FR 46906), we indicated we would attempt
to include proposals for procedure codes that would describe new
technology discussed and approved at the Spring meeting as part of the
code revisions effective the following October. As stated previously,
ICD-9-CM codes discussed at the March 9-10, 2011 Committee meeting that
received consensus and that were finalized by May 2011 are included in
Tables 6A through 6F, which are listed in section VI. of the Addendum
to this final rule and available via the Internet.
Section 503(a) of Public Law 108-173 included a requirement for
updating ICD-9-CM codes twice a year instead of a single update on
October 1 of each year. This requirement was included as part of the
amendments to the Act relating to recognition of new technology under
the IPPS. Section 503(a) amended section 1886(d)(5)(K) of the Act by
adding a clause (vii) which states that the ``Secretary shall provide
for the addition of new diagnosis and procedure codes on April 1 of
each year, but the addition of such codes shall not require the
Secretary to adjust the payment (or diagnosis-related group
classification) * * * until the fiscal year that begins after such
date.'' This requirement improves the recognition of new technologies
under the IPPS system by providing information on these new
technologies at an earlier date. Data will be available 6 months
earlier than would be possible with updates occurring only once a year
on October 1.
While section 1886(d)(5)(K)(vii) of the Act states that the
addition of new diagnosis and procedure codes on April 1 of each year
shall not require the Secretary to adjust the payment, or DRG
classification, under section 1886(d) of the Act until the fiscal year
that begins after such date, we have to update the DRG software and
other systems in order to recognize and accept the new codes. We also
publicize the code changes and the need for a mid-year systems update
by providers to identify the new codes. Hospitals also have to obtain
the new code books and encoder updates, and make other system changes
in order to identify and report the new codes.
The ICD-9-CM Coordination and Maintenance Committee holds its
meetings in the spring and fall in order to update the codes and the
applicable payment and reporting systems by October 1 of each year.
Items are placed on the agenda for the ICD-9-CM Coordination and
Maintenance Committee meeting if the request is received at least 2
months prior to the meeting. This requirement allows time for staff to
review and research the coding issues and prepare material for
discussion at the meeting. It also allows time for the topic to be
publicized in meeting announcements in the Federal Register as well as
on the CMS Web site. The public decides whether or not to attend the
meeting based on the topics listed on the agenda. Final decisions on
code title revisions are currently made by March 1 so that these titles
can be included in the IPPS proposed rule. A complete addendum
describing details of all changes to ICD-9-CM, both tabular and index,
is published on the CMS and NCHS Web sites in May of each year.
Publishers of coding books and software use this information to modify
their products that are used by health care providers. This 5-month
time period has proved to be necessary for hospitals and other
providers to update their systems.
A discussion of this timeline and the need for changes are included
in the December 4-5, 2005 ICD-9-CM Coordination and Maintenance
Committee minutes. The public agreed that there was a need to hold the
fall meetings earlier, in September or October, in order to meet the
new implementation dates. The public provided comment that additional
time would be needed to update hospital systems and obtain new code
books and coding software. There was considerable concern expressed
about the impact this new April update would have on providers.
In the FY 2005 IPPS final rule, we implemented section
1886(d)(5)(K)(vii) of the Act, as added by section 503(a)
[[Page 51552]]
of Public Law 108-173, by developing a mechanism for approving, in time
for the April update, diagnosis and procedure code revisions needed to
describe new technologies and medical services for purposes of the new
technology add-on payment process. We also established the following
process for making these determinations. Topics considered during the
Fall ICD-9-CM Coordination and Maintenance Committee meeting are
considered for an April 1 update if a strong and convincing case is
made by the requester at the Committee's public meeting. The request
must identify the reason why a new code is needed in April for purposes
of the new technology process. The participants at the meeting and
those reviewing the Committee meeting summary report are provided the
opportunity to comment on this expedited request. All other topics are
considered for the October 1 update. Participants at the Committee
meeting are encouraged to comment on all such requests. There were no
requests approved for an expedited April l, 2011 implementation of an
ICD-9-CM code at the September 15-16, 2010 Committee meeting.
Therefore, there were no new ICD-9-CM codes implemented on April 1,
2011.
Current addendum and code title information is published on the CMS
Web site at: http://www.cms.hhs.gov/icd9ProviderDiagnosticCodes/01_overview.asp#TopofPage. Information on ICD-9-CM diagnosis codes, along
with the Official ICD-9-CM Coding Guidelines, can be found on the Web
site at: http://www.cdc.gov/nchs/icd9.htm. Information on new, revised,
and deleted ICD-9-CM codes is also provided to the AHA for publication
in the Coding Clinic for ICD-9-CM. AHA also distributes information to
publishers and software vendors.
CMS also sends copies of all ICD-9-CM coding changes to its
Medicare contractors for use in updating their systems and providing
education to providers.
These same means of disseminating information on new, revised, and
deleted ICD-9-CM codes will be used to notify providers, publishers,
software vendors, contractors, and others of any changes to the ICD-9-
CM codes that are implemented in April. The code titles are adopted as
part of the ICD-9-CM Coordination and Maintenance Committee process.
Thus, although we publish the code titles in the IPPS proposed and
final rules, they are not subject to comment in the proposed or final
rules. We will continue to publish the October code updates in this
manner within the IPPS proposed and final rules. For codes that are
implemented in April, we will assign the new procedure code to the same
MS-DRG in which its predecessor code was assigned so there will be no
MS-DRG impact as far as MS-DRG assignment. Any midyear coding updates
will be available through the Web sites indicated above and through the
Coding Clinic for ICD-9-CM. Publishers and software vendors currently
obtain code changes through these sources in order to update their code
books and software systems. We will strive to have the April 1 updates
available through these Web sites 5 months prior to implementation
(that is, early November of the previous year), as is the case for the
October 1 updates.
b. Code Freeze
The International Classification of Diseases, 10th Revision (ICD-
10) coding system applicable to hospital inpatient services will be
implemented on October 1, 2013, as described in the Health Insurance
Portability and Accountability Act (HIPAA) Administrative
Simplification: Modifications to Medical Data code Set Standards to
Adopt ICD-10-CM and ICD-10-PCS final rule (74 FR 3328 through 3362,
January 16, 2009). The ICD-10 coding system includes the International
Classification of Diseases, 10th Revision, Clinical Modification (ICD-
10-CM) for diagnosis coding and the International Classification of
Diseases, 10th Revision, Procedure Coding System (ICD-10-PCS) for
inpatient hospital procedure coding, as well as the Official ICD-10-CM
and ICM-10-PCS Guidelines for Coding and Reporting. In the January 16,
2009 ICD-10-CM and ICD-10-PCS final rule (74 FR 3328 through 3362),
there was a discussion of the need for a partial or total freeze in the
annual updates to both ICD-9-CM and ICD-10-CM and ICD-10-PCS codes. The
public comment addressed in that final rule stated that the annual code
set updates should cease l year prior to the implementation of ICD-10.
The commenters stated that this freeze of code updates would allow for
instructional and/or coding software programs to be designed and
purchased early, without concern that an upgrade would take place
immediately before the compliance date, necessitating additional
updates and purchases.
We responded to comments in the ICD-10 final rule that the ICD-9-CM
Coordination and Maintenance Committee has jurisdiction over any action
impacting the ICD-9-CM and ICD-10 code sets. Therefore, we indicated
that the issue of consideration of a moratorium on updates to the ICD-
9-CM, ICD-10-CM, and ICD-10-PCS code sets in anticipation of the
adoption of ICD-10-CM and ICD-10-PCS would be addressed through the
Committee at a future public meeting.
The code freeze was discussed at multiple meetings of the ICD-9-CM
Coordination and Maintenance Committee and public comment was actively
solicited. The Committee evaluated all comments from participants
attending the Committee meetings as well as written comments that were
received. There was an announcement at the September 15-16, 2010 ICD-9-
CM Coordination and Maintenance Committee meeting that a partial freeze
of both ICD-9-CM and ICD-10 codes would be implemented as follows:
The last regular annual update to both ICD-9-CM and ICD-10
code sets will be made on October 1, 2011.
On October 1, 2012, there will be only limited code
updates to both ICD-9-CM and ICD-10 code sets to capture new technology
and new diseases.
There will be no updates to ICD-9-CM on October 1, 2013,
as the system will no longer be a HIPAA standard. There will be only
limited code updates to ICD-10 code sets on October 1, 2013, to capture
new technology and new diseases.
On October 1, 2014, regular updates to ICD-10 will begin.
The ICD-9-CM Coordination and Maintenance Committee announced that
it would continue to meet twice a year during the freeze. At these
meetings, the public will be encouraged to comment on whether or not
requests for new diagnosis and procedure codes should be created based
on the need to capture new technology and new diseases. Any code
requests that do not meet the criteria will be evaluated for
implementation within ICD-10 on or after October 1, 2014, once the
partial freeze is ended.
Complete information on the partial code freeze and discussions of
the issues at the Committee meetings can be found on the ICD-9-CM
Coordination and Maintenance Committee Web site at: http://www.cms.gov/ICD9ProviderDiagnosticCodes/03. A summary of the September 15-16, 2010
Committee meeting, along with both written and audio transcripts of
this meeting, are posted on the ``Download'' section of this Web page.
Comment: Several commenters supported the partial code freeze. The
commenters stated that the partial freeze was needed to allow providers
time to prepare for the implementation of ICD-
[[Page 51553]]
10 and the accompanying system and product updates.
Response: We appreciate the commenters' support. We agree with the
commenters that the partial code freeze will be useful in providing a
greater opportunity to focus on ICD-10 implementation issues.
c. Processing of 25 Diagnosis Codes and 25 Procedure Codes on Hospital
Inpatient Claims
In the FY 2011 IPPS/LTCH PPS final rule (75 FR 50127), we discussed
that we had received repeated requests from the hospital community to
process all 25 diagnosis codes and 25 procedure codes submitted on
electronic hospital inpatient claims. Prior to January 1, 2011,
hospitals could submit up to 25 diagnoses and 25 procedures; however,
CMS' system limitations allowed for the processing of only the first 9
diagnoses and 6 procedures. We indicated in that final rule that, as
part of our efforts to update Medicare systems prior to the
implementation of ICD-10 on October 1, 2013, we were undergoing
extensive system updates as part of the move to 5010, which includes
the ability to accept ICD-10 codes. This complicated transition
involved converting many internal systems prior to October 1, 2013,
when ICD-10 will be implemented. We stated that, as one important step
in this planned conversion process, we were planning to complete the
expansion of our internal system capability so that we are able to
process up to 25 diagnoses and 25 procedures on hospital inpatient
claims as part of the HIPAA ASC X12 Technical Reports Type 3, Version
005010 (Version 5010) standards system update. We have completed this
expansion, and, as a result, we were able to process up to 25 diagnosis
codes and 25 procedure codes when received on the 5010 format starting
on January 1, 2011. (We note that we made a typographical error in the
proposed rule (76 FR 25843) and indicated that ``we have not completed
this expansion.'' This error was pointed out to us by several
commenters. We corrected this typographical error in a correction
notice issued in the Federal Register on June 14, 2011 (76 FR 24633).)
We continue to recognize the value of the additional information
provided by this coded data for multiple uses such as for payment,
quality measures, outcome analysis, and other important uses. We will
continue to process up to 25 diagnosis codes and 25 procedure codes
when received on the 5010 format.
d. ICD-10 MS-DRGs
In response to the FY 2011 IPPS/LTCH PPS proposed rule, we received
comments on the creation of the ICD-10 version of the MS-DRGs, which
will be implemented on October 1, 2013 (FY 2014) when we implement the
reporting of ICD-10 codes (75 FR 50127 and 50128). While we did not
propose an ICD-10 version of the MS-DRGs in the FY 2011 IPPS/LTCH PPS
proposed rule, we noted that we have been actively involved in
converting our current MS-DRGs from ICD-9-CM codes to ICD-10 codes and
sharing this information through the ICD-9-CM Coordination and
Maintenance Committee. We undertook this early conversion project to
assist other payers and providers in understanding how to go about
their own conversion projects. We posted ICD-10 MS-DRGs based on V26.0
(FY 2009) of the MS-DRGs. We also posted a paper that describes how CMS
went about completing this project and suggestions for others to
follow. All of this information can be found on the CMS Web site at:
http://www.cms.gov/ICD10/17_ICD10_MS_DRG_Conversion_Project.asp.
We have continued to keep the public updated on our maintenance efforts
for ICD-10-CM and ICD-10-PCS coding systems as well as the General
Equivalence Mappings that assist in conversion through the ICD-9-CM
Coordination and Maintenance Committee. Information on these committee
meetings can be found at: http://www.cms.gov/ICD9ProviderDiagnosticCodes/03_meetings.asp.
During FY 2011, we developed and posted Version 28.0 of the ICD-10
MS-DRGs based on the FY 2011 MS-DRGs (Version 28.0) that we finalized
in the FY 2011 IPPS/LTCH PPS final rule on the CMS Web site. This ICD-
10 MS-DRG Version 28.0 also includes the CC Exclusion List and the ICD-
10 version of the hospital acquired conditions (HACs), which was not
posted with Version 26.0. We also discussed this update at the
September 15-16, 2010 and the March 9-10, 2011 meetings of the ICD-9-CM
Coordination and Maintenance Committee. The minutes of these two
meetings are posted on the CMS Web site at: http://www.cms.gov/ICD9ProviderDiagnosticCodes/03_meetings.asp. We will continue to work
with the public to explain how we are approaching the conversion of MS-
DRGs to ICD-10 and will post drafts of updates as they are developed
for public review. The final version of the ICD-10 MS-DRGs to be
implemented in FY 2014 will be subject to notice and comment
rulemaking. In the meantime, we will provide extensive and detailed
information on this activity through the ICD-9-CM Coordination and
Maintenance Committee.
14. Other Issues
a. O.R./Non-O.R. Status of Procedures
(1) Brachytherapy Code
We received a request that we add ICD-9-CM procedure code 92.27
(Implantation or Insertion of Radioactive Elements) [Brachytherapy]
into 41 MS-DRGs that are listed below:
129 (Major Head and Neck Procedures with CC/MCC or Major
Device)
130 (Major Head and Neck Procedures without CC/MCC)
163 (Major Chest Procedures with MCC)
164 (Major Chest Procedures with CC)
165 (Major Chest Procedures without CC/MCC)
180 (Respiratory Neoplasms with MCC)
181 (Respiratory Neoplasms with CC)
182 (Respiratory Neoplasms without CC/MCC)
326 (Stomach, Esophageal and Duodenal Procedures with MCC)
327 (Stomach, Esophageal and Duodenal Procedures with CC)
328 (Stomach, Esophageal and Duodenal Procedures without CC/
MCC)
329 (Major Small and Large Bowel Procedures with MCC)
330 (Major Small and Large Bowel Procedures with CC)
331 (Major Small and Large Bowel Procedures without CC/MCC)
332 (Rectal Resection with MCC)
333 (Rectal Resection with CC)
334 (Rectal Resection without CC/MCC)
344 (Minor Small and Large Bowel Procedures with MCC)
345 (Minor Small and Large Bowel Procedures with CC)
346 (Minor Small and Large Bowel Procedures without CC/MCC)
347 (Anal and Stomal Procedures with MCC)
348 (Anal and Stomal Procedures with CC)
349 (Anal and Stomal Procedures without CC/MCC)
405 (Pancreas, Liver and Shunt Procedures with MCC)
406 (Pancreas, Liver and Shunt Procedures with CC)
407 (Pancreas, Liver and Shunt Procedures without CC/MCC)
490 (Back and Neck Procedures Except Spinal Fusion with CC/MCC
or Disc Device/Neurostimulator)
491 (Back and Neck Procedures Except Spinal Fusion without CC/
MCC)
[[Page 51554]]
500 (Soft Tissue procedures with MCC)
501 (Soft Tissue procedures with CC)
502 (Soft Tissue procedures without CC/MCC)
584 (Breast Biopsy, Local Excision and Other Breast Procedures
with CC/MCC)
585 (Breast Biopsy, Local Excision and Other Breast Procedures
without CC/MCC)
597 (Malignant Breast Disorders with MCC)
598 (Malignant Breast Disorders with CC)
599 (Malignant Breast Disorders without CC/MCC)
653 (Major Bladder Procedures with MCC)
654 (Major Bladder Procedures with CC)
655 (Major Bladder Procedures without CC/MCC)
656 (Kidney and Ureter Procedures for Neoplasm with MCC)
657 (Kidney and Ureter Procedures for Neoplasm with CC)
658 (Kidney and Ureter Procedures for Neoplasm without CC/MCC)
662 (Minor Bladder Procedures with MCC)
663 (Minor Bladder Procedures with CC)
664 (Minor Bladder Procedures without CC/MCC)
668 (Transurethral Procedures with MCC)