ICD-9-CM Codes Updated October 1, 2000
All Medicare contractors will update their claims payment system on October 1, 2000, with the updated ICD-9-CM codes. There is a 90-day grace period between October 1, 2000, and January 1, 2001, during which Medicare will allow claims to be submitted with the 1999/2000 and the 2001 ICD-9-CM code versions. However, claims received on or after January 1, 2001 must include the latest version (2001) of the ICD-9-CM codes. It is extremely important for you to use the most recent version of the ICD-9-CM coding book and code your diagnoses to the highest level of specificity.

There are many changes to the ICD-9-CM codes for 2001. You can obtain a copy of the 2001 ICD-9-CM book from your local medical bookstore or you may contact the following:

American Medical Association
P.O. Box 10946
Chicago, IL 60610
800-621-8335