ICD-10 Code K71.4 – Toxic liver disease with chronic lobular hepatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K71.4 – Toxic liver disease with chronic lobular hepatitis
What it is
K71.4 identifies liver injury caused by a toxin or drug, with chronic lobular hepatitis documented. Use it when the record links the liver disease to a toxic exposure and describes this specific chronic hepatitis pattern.
Clinical signs
Clinical features vary; refer to documentation. Records may note chronic hepatitis, abnormal liver findings, or evidence of toxic liver injury, but you should code only when the clinician specifies chronic lobular hepatitis.
When to use this code
Use K71.4 when the provider documents toxic liver disease and specifically states chronic lobular hepatitis. It fits cases where a medication, chemical, or other toxin is identified as the cause. If the cause or hepatitis type is unclear, check documentation before assigning the code.
Do not use for
Do not use this code for unspecified toxic liver disease, acute hepatitis, or liver injury without documented chronic lobular hepatitis. If the record does not clearly connect the condition to a toxin, do not assume K71.4.
Coding tip
Verify both elements in the note: toxic cause and chronic lobular hepatitis; if either is missing, query or code more specifically from the documentation.