ICD-10 Code B18.8 – Other chronic viral hepatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B18.8 – Other chronic viral hepatitis
What it is
This code identifies chronic viral hepatitis that does not fit the specific hepatitis B or C categories. Use it for a long-standing viral liver infection when the record documents another chronic viral cause.
Clinical signs
Clinical features vary; refer to documentation. Patients may have persistent hepatitis noted on history, exam, imaging, or biopsy, but the specific viral type should be documented when known.
When to use this code
Use B18.8 when the provider states chronic viral hepatitis and identifies an organism or type not captured by other B18 codes. It also fits cases labeled “other chronic viral hepatitis” in the assessment. If the record only says hepatitis without chronicity or viral cause, check documentation.
Do not use for
Do not use this code for acute viral hepatitis, unspecified hepatitis, or chronic hepatitis B and C, which have separate codes. If the cause is nonviral, choose another diagnosis.
Coding tip
Assign the most specific chronic hepatitis code supported by the provider’s documentation; if the viral type is unclear, query the record.