International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)
Note: The FY 2018 release of ICD-10-CM is now available.
The National Center for Health Statistics (NCHS), the Federal agency responsible for use of the International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10) in the United States, has developed a clinical modification of the classification for morbidity purposes. The ICD-10 is used to code and classify mortality data from death certificates, having replaced ICD-9 for this purpose as of January 1, 1999. ICD-10-CM is the replacement for ICD-9-CM, volumes 1 and 2, effective October 1, 2015.
The ICD-10 is copyrighted by the World Health Organization (WHO), which owns and publishes the classification. WHO has authorized the development of an adaptation of ICD-10 for use in the United States for U.S. government purposes. As agreed, all modifications to the ICD-10 must conform to WHO conventions for the ICD. ICD-10-CM was developed following a thorough evaluation by a Technical Advisory Panel and extensive additional consultation with physician groups, clinical coders, and others to assure clinical accuracy and utility.
The entire draft of the Tabular List of ICD-10-CM, and the preliminary crosswalk between ICD-9-CM and ICD-10-CM were made available on the NCHS website for public comment. The public comment period ran from December 1997 through February 1998. The American Hospital Association and the American Health Information Management Association conducted a field test for ICD-10-CM in the summer of 2003, report [PDF – 1.8 MB]. All comments and suggestions from the open comment period and the field test were reviewed, and additional modifications to ICD-10-CM were made based on these comments and suggestions. Additionally, new concepts have been added to ICD-10-CM based on the established update process for ICD-9-CM (the ICD-9-CM Coordination and Maintenance Committee) and the World Health Organization’s ICD-10 (the Update and Revision Committee). This represents ICD-9-CM modifications from 2003-2011 and ICD-10 modifications from 2002-2010.
The clinical modification represents a significant improvement over ICD-9-CM and ICD-10. Specific improvements include: the addition of information relevant to ambulatory and managed care encounters; expanded injury codes; the creation of combination diagnosis/symptom codes to reduce the number of codes needed to fully describe a condition; the addition of sixth and seventh characters; incorporation of common 4th and 5th digit subclassifications; laterality; and greater specificity in code assignment. The new structure will allow further expansion than was possible with ICD-9-CM.
Please feel free to contact the e-mail address listed below with any questions you may have:
E-mail: nchsicd10cm@cdc.gov
The procedure coding system, ICD-10-PCS, developed and approved as a replacement for ICD-9-CM, Volume 3, can be viewed and downloaded from the Centers for Medicare and Medicaid Services’ Web site.
We very much appreciate your interest in ICD-10-CM.
2018 release of ICD-10-CM
The 2018 ICD-10-CM codes are to be used from October 1, 2017 through September 30, 2018.
Note: This replaces the FY 2017 release. These files listed below represent the FY 2018 ICD-10-CM. The FY 2018 ICD-10-CM is available in both PDF (Adobe) and XML file formats. Most files are provided in compressed zip format for ease in downloading. These files have been created by the National Center for Health Statistics (NCHS), under authorization by the World Health Organization. Any questions regarding typographical or other errors noted on this release may be reported to nchsicd10cm@cdc.gov.
- Preface [PDF – 40 KB]
- ICD-10-CM FY 2018 Guidelines [PDF – 549 KB]
- Errata FY 18 ICD-10-CM Guidelines [PDF – 83 KB]
- ICD-10-CM FY2018 Full PDF
- ICD-10-CM XML
- ICD-10-CM FY 2018 Addenda PDF
- ICD-10-CM Errata [PDF – 145 KB]
- ICD-10-CM FY 2018 List of codes and Descriptions
- ICD-10-CM FY2018 Order Files
- Conversion table FY2018
- General Equivalence Mappings (GEMS)
- Present on Admission (POA) Exempt Codes FY 2018
2017 release of ICD-10-CM
- Preface [PDF- 48 KB]
- ICD-10-CM FY 2017 Guidelines [PDF- 558 KB]
- ICD-10-CM FY2017 Full PDF
- ICD-10-CM XML
- ICD-10-CM FY 2017 Addenda PDF
- ICD-10-CM FY 2017List of codes and Descriptions
- ICD-10-CM FY2017 Order Files
- Conversion table FY2017
- Present on Admission (POA) Exempt Codes [Zip – 1 MB]
FY 2016 release of ICD-10-CM
- Preface
- ICD-10-CM Guidelines [PDF -926 KB]
- ICD-10-CM PDF Format
- ICD-10-CM XML Format
- ICD-10-CM List of codes and Descriptions
- General Equivalence Mapping Files [ZIP -1 MB]
- Present on Admission (POA) Exempt Codes [ZIP -1 MB]
- Interim advice on excludes 1 note on conditions unrelated [PDF – 92 KB]
Note: Updated interim advice on excludes 1 note on conditions unrelated
FY 2015 release of ICD-10-CM
- Preface [PDF – 35 KB]
- ICD-10-CM Guidelines [PDF – 511 KB] Modifications made on page 78.
- ICD-10-CM PDF Format
- ICD-10-CM XML Format
- ICD-10-CM List of codes and Descriptions
- General Equivalence Mapping Files [ZIP – 657 KB]
FY 2014 release of ICD-10-CM
- Preface [PDF – 35 KB]
- ICD-10-CM Guidelines [PDF – 512 KB]
- ICD-10-CM PDF Format
- ICD-10-CM XML Format
- ICD-10-CM 2014 Addenda
- ICD-10-CM List of codes and Descriptions (updated 7/3/2013)
- General Equivalence Mapping Files [ZIP – 624 KB]
2013 release of ICD-10-CM
- Preface [PDF – 40 KB]
- ICD-10-CM Guidelines [PDF – 838 KB] 113 pp.
Note: These guidelines were updated on 8/27/2012 - ICD-10-CM PDF Format
- ICD-10-CM XML Format
- ICD-10-CM 2013 Addenda
- ICD-10-CM List of codes and Descriptions
- General Equivalence Mapping Files
2012 release of ICD-10-CM
- Preface [PDF – 40 KB]
- ICD-10-CM Guidelines [PDF – 490 KB]
- ICD-10-CM PDF Format
- ICD-10-CM XML Format
- ICD-10-CM 2011 to 2012 Addenda
- ICD-10-CM List of codes and Descriptions
- General Equivalence Mapping Files
2011 release of ICD-10-CM
- Preface [PDF – 93 KB]
- ICD-10-CM Guidelines [PDF – 494 KB]
- ICD-10-CM PDF Format
- ICD-10-CM XML Format
- ICD-10-CM 2010 to 2011 Addenda
- ICD-10-CM List of codes and Descriptions
- General Equivalence Mapping Files
2010 release of ICD-10-CM
- Preface [PDF – 11 KB]
- Guidelines
- Index to Diseases and Injury
- Tabular List
- Index to External Causes of Injury
- Table of Drugs and Chemicals
- Table of Neoplasms
- General Equivalence Mapping Files
- Tabular Addenda [PDF – 1.1 MB]
- Tabular Addenda Errata [PDF – 15 KB]
- Index Addenda [PDF – 873 KB] Note: when the Index Addenda is viewed on a computer screen, it should be viewed using at least 100% zoom or more, depending on the monitor resolution, to ensure that the underlining is visible.
- Page last reviewed: August 18, 2017
- Page last updated: August 18, 2017
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