Chronic active hepatitis, not elsewhere classified

This code signifies a persistent, ongoing inflammation of the liver characterized by active necrosis and fibrosis, which has progressed beyond six months. It represents a more severe and progressive form of chronic hepatitis where the liver continues to be damaged.

Apply this code when documentation explicitly states "chronic active hepatitis" and specifies that it is not due to a known viral etiology (e.g., hepatitis B or C) or other classified causes. This diagnosis is typically made based on liver biopsy findings showing ongoing inflammation and necrosis, along with elevated liver enzymes over an extended period.

• Ensure the documentation clearly states "active" and "chronic" to differentiate from other forms of hepatitis.
• Always look for an underlying cause (e.g., viral, autoimmune, drug-induced) and code that specific etiology if identified.
• Avoid using this code if a more specific chronic hepatitis code (e.g., viral hepatitis B or C with delta agent) is applicable.