Medical Billing Blog with Medical Billing & Coding Info & Articles

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Welcome to the medical billing blog containing news and articles relating to medical billing, medical coding ICD-10, HIPAA and all practice management functions.

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New Diagnosis Codes Effective 10/1/2004

The new ICD-9 diagnosis codes went into effect on October 1st, 2004. In the past years, we had a three month grace period to use the new and revised codes. This year in 2004, CMS eliminated the grace period. Which means claims are going to be denied if you have not updated your diagnosis codes. If you have not already, you can view or download the 2004 code updates by visiting Those interested in the proposed new diagnosis coding sytem, ICD-10-CM, being developed as a replacement for ICD-9-CM, volumes 1 and 2, should visit

Published By: Melissa Clark, CCS-P | No Comments