Skip to main content
U.S. Flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

CMS.gov
Centers for Medicare & Medicaid Services
Header
  • About CMS
  • Newsroom
CMS.gov main menu
  • Medicare
  • Medicaid/CHIP
  • Medicare-Medicaid Coordination
  • Private Insurance
  • Innovation Center
  • Regulations & Guidance
  • Research, Statistics, Data & Systems
  • Outreach & Education
  • About CMS
  • Newsroom

Breadcrumb

  • Medicare
  • ICD-10
  • ICD-10 MS-DRG Conversion Project

  • ICD-10

    • Latest News
    • CMS Regional Offices
    • Provider Resources
    • 2023 ICD-10-PCS
    • 2023 ICD-10-CM
    • 2022 ICD-10 PCS
    • 2022 ICD-10-CM
    • 2021 ICD-10-CM
    • 2021 ICD-10-PCS
    • 2020 ICD-10-CM
    • 2020 ICD-10 PCS
    • 2019 ICD-10-CM
    • 2019 ICD-10 PCS
    • 2018 ICD-10 CM and GEMs
    • 2018 ICD-10 PCS and GEMs
    • 2017 ICD-10-CM and GEMs
    • 2017 ICD-10 PCS and GEMs
    • ICD-10-CM and ICD-10 PCS and GEMs Archive
    • ICD-10 Coordination and Maintenance Committee Meetings
    • ICD-10 MS-DRG Conversion Project
    • Process for Requesting New/Revised ICD-10-PCS Procedure Codes
    • ICD-10 Coordination and Maintenance Committee Meeting Materials
    • ICD-9-CM Diagnosis and Procedure Codes: Abbreviated and Full Code Titles
    • Updates and Revisions to ICD-9-CM Procedure Codes (Addendum)
    • Payer Resources
    • Statute and Regulations
    • Vendor Resources

ICD-10 MS-DRG Conversion Project

This section provides information on the project for using the General Equivalence Mappings (GEMs) to convert the MS-DRGs to ICD-10-CM and ICD-10-PCS. Information is also provided on undertaking similar conversion projects.

The Final ICD-10 MS-DRG v33 logic was implemented on October 1, 2015. For information on the ICD-10 MS-DRG and MCE v33 including ordering the software, see the FY 2016 Acute Inpatient PPS page under Related Links.

Downloads

  • General Equivalence Mappings FAQs (PDF)
  • Converting MS-DRGs to ICD-10-CM and ICD-10-PCS - Updated 03/03/15 with new 2015 impact article (ZIP)
  • Partial Freeze of ICD-9-CM and ICD-10 Codes - Updated 8/5/14 (PDF)
  • ICD-10 MS-DRG Conversion Project Slides (PDF)
  • ICD-10-CM/PCS MS-DRG v32 Definitions Manual Table of Contents- Full Titles – Text Version (ZIP)
  • ICD-10 Medicare Code Editor v32 (MCE v32 to be used with v32 Definitions Manual) (ZIP)
  • ICD-10 MS-DRGs v32 and v31R Comparison File (ZIP)
  • 2015 Present On Admission (POA) Exempt List (ZIP)
  • ICD-10-CM/PCS MS-DRG v31R Definitions Manual Table of Contents- Full Titles – Text Version (ZIP)
  • ICD-10 Medicare Code Editor v31R (MCE v31R to be used with v31R Definitions Manual) (ZIP)
Page Last Modified:
03/28/2022 04:44 PM
Help with File Formats and Plug-Ins

Get email updates

Sign up to get the latest information about your choice of CMS topics. You can decide how often to receive updates.

CMS & HHS Websites
  • Medicare.gov
  • Medicaid.gov
  • InsureKidsNow.gov
  • HealthCare.gov
  • HHS.gov
  • HHS.gov/Open
About CMS
  • About Us
  • Careers
  • Newsroom
  • Blog
  • Podcast
Tools
  • Acronyms
  • Archive
  • Contacts
  • Glossary
Helpful Links
  • Web Policies
  • Privacy Policy
  • Plain Language
  • Privacy Settings
  • Nondiscrimination & Accessibility
  • Developer Information
USA Government Sites
  • Freedom of Information Act
  • No Fear Act
  • Inspector General
  • USA.gov
CMS.gov HHS Logo

Connect with CMS

  • Linkedin link
  • Youtube link
  • Facebook link
  • Twitter link
  • RSS Feed link

A federal government website managed and paid for by the U.S. Centers for Medicare & Medicaid Services.

7500 Security Boulevard, Baltimore, MD 21244