ICD-10 Code K75.9 – Inflammatory liver disease, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K75.9 – Inflammatory liver disease, unspecified
What it is
K75.9 identifies inflammatory disease of the liver when the documentation does not specify the exact type. Use it for a nonspecific liver inflammation diagnosis that does not fit a more detailed code.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings may include liver inflammation noted on evaluation, abnormal liver tests, or imaging and biopsy descriptions that support inflammatory liver disease without a named cause.
When to use this code
Use K75.9 when the provider documents inflammatory liver disease but does not identify a more specific subtype. It is appropriate when the record supports liver inflammation, yet the etiology or exact diagnosis remains unclear. Do not guess a more specific code without documentation.
Do not use for
Do not use this code if the chart specifies a distinct liver disorder, such as a viral, autoimmune, alcoholic, or other defined inflammatory condition. Check documentation for a more precise diagnosis before defaulting to unspecified.
Coding tip
Query for the exact liver diagnosis whenever the note says only “inflammation” or “hepatitis” without clarification.