2011 Errata and Corrections


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

2011 ICD-9 Addendum Index


The CMS recently announced number of changes to HCPCS Level II codes effective July 1. The official update of the HCPCS code system is also available as a public use file on CMS website. 

C-Codes April 2011

G-Codes January 2011 – Updated 1/19/11

Other Codes effective July 1, 2011
Other Codes effective April 1, 2011
Other codes effective October 1, 2010 – Updated 07/06/2010


The errata links for the CPT® book listed below include corrections and other information related to the CPT® 2010 and 2011 Book published by the American Medical Association. To bring yourself up-to-date on corrections to your CPT books check AMA site periodically for updates.

CPT® is a registered trademark of the American Medical Association.

Corrections in CPT® 2011 – Revised April 12, 2011

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