Acute hepatitis B w/o delta-agent and without hepatic coma

This diagnosis code signifies an acute infection of the liver caused by the hepatitis B virus, specifically when there is no co-infection with the delta agent (hepatitis D virus) and the patient has not developed hepatic coma. It indicates a recent onset of hepatitis B symptoms or serological evidence of acute infection.

Use this code for patients presenting with new-onset symptoms of hepatitis B, such as jaundice, fatigue, nausea, or abdominal pain, confirmed by positive HBsAg and IgM anti-HBc. It is appropriate when documentation explicitly rules out delta agent co-infection and hepatic encephalopathy. This code is also applicable for acute exacerbations of chronic hepatitis B if the documentation clearly indicates an acute phase without delta agent or coma.

• Ensure documentation specifies "acute" hepatitis B and explicitly negates delta agent co-infection and hepatic coma.
• Distinguish carefully from chronic hepatitis B (B18.0, B18.1) based on serological markers and clinical presentation.
• Do not use this code if the patient has developed hepatic coma; instead, refer to codes within the B16.0-B16.2 range.