ICD-10 Code K73.8 – Other chronic hepatitis, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K73.8 – Other chronic hepatitis, not elsewhere classified
What it is
K73.8 identifies chronic hepatitis that does not fit a more specific chronic hepatitis category. Use it when the record confirms a long-standing inflammatory liver condition, but the documentation does not name a more precise type.
Clinical signs
Clinical features vary; refer to documentation. Chronic hepatitis may be found through persistent liver inflammation, abnormal liver tests, imaging findings, or biopsy results, but you should code only what the provider documents.
When to use this code
Use K73.8 when the clinician documents chronic hepatitis and specifies that it is other or not otherwise classified. It also fits when the chart supports chronic liver inflammation, but the exact etiology or subtype is not identified. If another chronic hepatitis code is documented, use that more specific code instead.
Do not use for
Do not use this code for acute hepatitis or for chronic hepatitis with a clearly documented specific cause such as viral, autoimmune, or drug-induced disease. Check documentation if the record points to a more specific diagnosis.
Coding tip
Code the most specific chronic hepatitis term in the note; if the provider does not specify the subtype, K73.8 may be appropriate.