Other sarcomas of liver

This code signifies a malignant neoplasm of the liver that originates from mesenchymal tissue, rather than the more common hepatocellular carcinoma. It encompasses various rare non-epithelial liver cancers, such as angiosarcoma, leiomyosarcoma, or undifferentiated pleomorphic sarcoma, when they arise within the liver.

Assign this code when documentation explicitly states a diagnosis of a primary sarcoma of the liver, excluding specific types like angiosarcoma if a more precise code is available. This code is appropriate when the pathology report confirms a sarcoma originating in the liver without further specification, or when the specific sarcoma type does not have its own dedicated ICD-10-CM code.

• Ensure the pathology report confirms a primary liver sarcoma, not a metastatic sarcoma to the liver.
• Review documentation carefully for specific sarcoma types (e.g., angiosarcoma) that may have more granular codes.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter or hospitalization.