AHA Coding Clinic® for ICD-9 - 2008 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES

Autoimmune Hepatitis

Effective October 1, 2008, code 571.42, Autoimmune hepatitis, has been created for this condition that had been synonymous with chronic active hepatitis. Prior to this change, this condition was assigned to code 571.49, Chronic hepatitis, Other. Recent literature shows that with the use of new viral serologic tests, hepatologists are able to differentiate chronic viral hepatitis from other types of liver disease, including autoimmune hepatitis. Autoimmune hepatitis is characterized by inflammation of the liver and liver damage that is caused by an attack of the patient’s immune system on their own liver. It has...

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