B18.19: Chronic viral hepatitis B without delta-agent : other and unspecified phase

Chronic viral hepatitis B (without delta-agent: other and unspecified phase) is a long-term infectious disease of the liver caused by the hepatitis B virus (HBV). Unlike acute hepatitis B which can be short-term and clear up in a few months, chronic hepatitis B persists longer, often leading to ongoing life-long liver damage. In this context, 'without delta-agent' means that it is not co-infected with hepatitis D virus, which can worsen the condition. Typical symptoms might include persistent tiredness, loss of appetite, mild fever, and a yellowing of the skin and eyes (jaundice). However, many people with chronic hepatitis B feel well and do not present any symptoms, even while the virus is causing damage to their liver. It's worth noting that 'unspecified phase' indicates that the specific stage of the disease (like immune tolerance, immune active, or inactive carrier stage) has not been determined.