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About
the International
Classification of Diseases, Tenth Revision, Clinical Modification
(ICD-10-CM)
Note: A pre-release version of ICD-10-CM from June 2003 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 planned as the replacement for ICD-9-CM, volumes 1 and 2.
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. Except in rare instances, no modifications have been made to existing three-digit categories and four-digit codes, with the exception of title changes that did not change the meaning of the category or code.
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. We believe the clinical modification represents a significant improvement over ICD-9-CM and ICD-10. The current draft of ICD-10-CM contains a significant increase in codes over ICD-10 and ICD-9-CM.
Notable improvements in the content and format 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 a sixth character; 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.
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. All comments received during the comment period, which began December 1997 and ended February 1998, were requested to be in writing. After the 60 day open comment period for the draft ICD-10-CM had concluded, the draft version of the ICD-10-CM was removed from the NCHS homepage.
An overview about the comments received is available as a PDF file. View/download PDF 18 KB
Revisions have been made to the draft of ICD-10-CM based on the comments received. An updated draft version of ICD-10-CM from June 2003 is now available for public viewing. However, the codes in ICD-10-CM are not currently valid for any purpose or uses. The American Hospital Association (AHA) and the American Health Information Management Association (AHIMA) conducted a joint testing of ICD-10-CM using this pre-release version. A report of the results may be found on both the AHA web site and the AHIMA web site. Updates to this draft are ongoing prior to implementation of ICD-10-CM.
There is not yet an anticipated implementation date for the ICD-10-CM. Implementation will be based on the process for adoption of standards under the Health Insurance Portability and Accountability Act of 1996. There will be a two year implementation window once the final notice to implement has been published in the Federal Register.
Please feel free to contact the individuals listed below with any questions you may have:
Donna
Pickett, (301) 458-4434
e-mail: dfp4@cdc.gov
Amy Blum (301)
458-4106
e-mail: alb8@cdc.gov
Those interested in the proposed new procedure coding system, ICD-10-PCS, being developed as a replacement for ICD-9-CM, Volume 3, should see the Centers for Medicare and Medicaid Services' Web site.
We very much appreciate your interest in ICD-10-CM.
This page last reviewed
May 04, 2004
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