171.9
ICD-9-CMThis code signifies a cancerous growth originating from connective tissues (e.g., fat, muscle, cartilage, bone, fibrous tissue) or other soft tissues, where the specific anatomical location of the primary tumor is not documented. It indicates a malignant soft tissue sarcoma without further site specification.
Apply this code when the medical record clearly states a diagnosis of a malignant neoplasm of connective or soft tissue, but the physician's documentation does not specify the primary anatomical site. This is typically used in cases where the exact origin is unknown or pending further investigation, or for metastatic disease where the primary site was never identified.
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