About ICD-9 Coding

In response to the delay of the ICD-10-CM/ICD-10-PCS implementation date, we are reprinting the 2012 ICD-9-CM Coding Handbook with an addendum with key FY2013-2014 changes from AHA Coding Clinic.  Click here for more information.

The medical coding systems currently used in the United States are ICD-9-CM and HCPCS (Level I CPT codes and Level II National Codes). The International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) medical diagnosis are used by all health care settings including hospitals, physicians, nursing homes, home health agencies and other providers. ICD-9-CM procedure codes are used to collect hospital inpatient procedural data.

The implementation date for ICD-10-CM/ICD-10-PCS has been delayed.  For more information, please visit the ICD-10 section of the website.

These coding systems serve an important function for physician reimbursement, hospital payments, quality review, benchmarking measurement and the collection of general medical statistical data.

For more on AHA Central Office and its role in medical coding and medical coding issues, check out this 2010 article, "Hidden Treasure" by Judy Sturgeon, CSS, in For the Record.

For more information on AHA Central Office, please visit the About Us section of the website.



2014 AHIMA ICD-10 CAC Summit