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International Classification of Diseases,
Ninth Revision, Clinical Modification (ICD-9-CM)

The International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) is based on the World Health Organization's Ninth Revision, International Classification of Diseases (ICD-9). ICD-9-CM is the official system of assigning codes to diagnoses and procedures associated with hospital utilization in the United States. The ICD-9 was used to code and classify mortality data from death certificates until 1999, when use of ICD-10 for mortality coding started.

The ICD-9-CM consists of:

a tabular list containing a numerical list of the disease code numbers in tabular form;
an alphabetical index to the disease entries; and
a classification system for surgical, diagnostic, and therapeutic procedures (alphabetic index and tabular list).

The National Center for Health Statistics (NCHS) and the Centers for Medicare and Medicaid Services are the U.S. governmental agencies responsible for overseeing all changes and modifications to the ICD-9-CM.

ICD-9-CM on CD-ROM

This product contains the complete official version of the International Classification of Diseases, Ninth Revision, Clinical Modification (Volumes 1, 2, 3, and Guidelines), compiled by the National Center for Health Statistics and the Centers for Medicare and Medicaid Services. The ICD-9-CM CD-ROM contains all changes issued through October 1, 2011. This CD-ROM supersedes all previous issues. The files on the CD-ROM are in Folio InfoBase format using version 4.7 of Folio Views (see system requirements below).

System requirements

At minimum, you need a system capable of running the operating system you have chosen.

Windows XP Home, Windows XP Pro, Windows 2003 Server, Windows Vista,
Windows 7 32 or 64-bit
At least 50 MB hard drive space available

Ordering information

This product can be purchased from the Government Printing Office (GPO), stock number 017-022-01616-8, price: $29.00 U.S. and $40.60 International.

A version in Rich Text Format (RTF) of the 2011 edition is available for downloading from the Centers for Disease Control and Prevention's (CDC)/FTP server.