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**National Center    for     Health Statistics            Division of Data     Services            6525 Belcrest Road     Hyattsville, MD     20782-2003     (301)458-4636      **

 **Classification of    DiseasesClassification    of Diseases Home | Official Guidelines    | Conversion Table    | Addenda |    Search NCHS  | Contact    us**
      **International Classification of    Diseases, Ninth Revision, Clinical Modification, Sixth Edition**

**Guidelines**Official Guidelines for coding    are included on the **CD-ROM**.    They have been approved by the Cooperating Agencies for Coding Clinic for the ICD-9-CM. 

ICD-9-CM Guidelines. 34 pp. **View/download PDF 78 KB**      

**Conversion table**A conversion table for    diagnostic and procedural code changes between 1986-2000 is provided to assist users in    data retrival. The table shows the date the new code became effective and its previously    assigned code equivalent.  New codes effective October 1, 2000, are shown in    bold.  

ICD-9-CM Code Conversion Table. 36 pp.**View/download PDF 96 KB**(10/1/2000)      

**Addenda**The annual update to ICD-9-CM    is provided as addenda changes to the index and tabular list of ICD-9-CM, effective    October 1, 2000.  Additions and revisions are marked with underlining, while    deletions are marked with strikeout.       Note: these addenda were updated on 6/20/2000.

ICD-9-CM Index Addenda. 26 pp.**View/download PDF 67 KB**    (10/1/2000)

ICD-9-CM Tabular Addenda. 25 pp.**View/download PDF 63 KB**    (10/1/2000)      

**Classification of DiseasesClassification of    Diseases Home | Official Guidelines    | Conversion Table    | Addenda |    Search NCHS  | Contact    us**
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This page last reviewed October 03, 2000
**U.S.    DEPARTMENT OF HEALTH AND HUMAN SERVICES****Centers    for Disease Control and Prevention**    National Center for Health Statistics    Division of Data Services     Hyattsville, MD    20782-2003    (301) 458-4636
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