Malig neoplasm of scapula and long bones of left upper limb

This diagnosis code signifies a primary cancerous tumor originating in the bones of the left shoulder blade (scapula) or the long bones of the left arm, such as the humerus, radius, or ulna. It indicates a malignant growth that has developed within the bone tissue itself, rather than a metastasis from another site.

Assign this code when documentation confirms a primary malignant neoplasm affecting the scapula or any long bone of the left upper extremity. This is appropriate for initial diagnoses, active treatment, or follow-up care related to the primary bone cancer. Supporting documentation should include pathology reports confirming malignancy and imaging studies specifying the tumor's location.

• Ensure the documentation explicitly states "primary malignant neoplasm" to differentiate from metastatic bone cancer.
• Verify the laterality is precisely "left upper limb" and not unspecified or right.
• Do not use this code for benign bone tumors or secondary (metastatic) malignancies to these sites.