AHA Coding Clinic® for ICD-9 - 2009 Issue 4; VOLUMES 1 & 2 NEW/REVISED CODES

Novel H1N1 Influenza Virus

Effective October 1, 2009, code 488 has been revised and expanded to create a new subcategory with two unique codes for influenza due to identified avian influenza virus (488.0) and influenza due to identified novel H1N1 influenza virus (488.1). These codes have been created to provide data capture for the novel H1N1 influenza virus (swine flu virus), which was first identified in April, after the March 2009 ICD-9-CM Coordination and Maintenance Committee meeting. Novel H1N1 (also referred to as "swine flu") is a new influenza that was first detected in people in the United States in April...

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