Granulomatous hepatitis, not elsewhere classified

This diagnosis code signifies inflammation of the liver characterized by the presence of granulomas, which are small collections of immune cells. This condition is not attributable to specific infectious agents like viruses or bacteria, nor is it a direct consequence of drug-induced liver injury or autoimmune processes. It represents a distinct pathological finding of granulomatous inflammation within the liver parenchyma.

This code is appropriate when documentation explicitly states "granulomatous hepatitis" without further specification of an underlying cause that has its own distinct code. It is used when other common causes of hepatitis (e.g., viral, alcoholic, autoimmune, drug-induced) have been ruled out or are not documented as the etiology. Supporting documentation would include liver biopsy reports confirming granulomas and physician notes indicating the idiopathic nature or lack of a more specific diagnosis.

• Do not use this code if a more specific cause of granulomatous hepatitis (e.g., sarcoidosis, tuberculosis, fungal infection) is documented; code the underlying condition instead.
• Carefully review documentation to ensure the hepatitis is indeed "not elsewhere classified" and not an acute, subacute, or chronic form with a more specific code.
• Be mindful of the "Excludes1" notes; never code this alongside acute/subacute hepatitis, chronic hepatitis NEC, or viral hepatitis.