Acute hepatitis B without delta-agent with hepatic coma

This code signifies an acute infection of the liver caused by the hepatitis B virus, specifically without co-infection by the delta agent (hepatitis D virus), that has progressed to hepatic coma. Hepatic coma indicates severe liver failure leading to a profound alteration in mental status due to the liver's inability to detoxify the blood.

Apply this code when documentation clearly states acute hepatitis B infection, explicitly excludes delta agent co-infection, and notes the presence of hepatic coma or encephalopathy directly attributable to the liver failure. This is typically seen in severe, fulminant cases of acute hepatitis B.

• Ensure documentation specifies "acute" hepatitis B and explicitly rules out delta agent co-infection.
• Confirm the presence of hepatic coma, not just general encephalopathy, as a direct consequence of the liver failure.
• Do not use if the hepatitis B is chronic or if delta agent co-infection is present or suspected.