Malignant neoplasm of long bones of lower limb

This code signifies the presence of a primary cancerous tumor originating in the long bones of the lower extremities, such as the femur, tibia, or fibula. It indicates a malignant growth that has developed within the bone tissue itself, rather than a metastasis from another site.

Use this code when documentation clearly states a primary malignant neoplasm of a long bone in the lower limb. This is applicable for initial diagnosis, treatment, and follow-up care of such a condition. Supporting documentation includes pathology reports confirming malignancy and imaging studies identifying the tumor's location.

• Differentiate from secondary malignant neoplasms (metastatic bone cancer) which have different ICD-9 codes.
• Ensure the documentation specifies "long bones" of the "lower limb" to avoid confusion with other bone sites.
• Consider an additional code for the specific type of malignancy (e.g., osteosarcoma) if known and documented.