Malignant neoplasm of short bones of right upper limb

This code signifies a primary cancerous tumor originating in the short bones of the right upper extremity. This includes bones such as the carpals (wrist bones) or phalanges (finger bones) of the right hand. The malignancy is characterized by uncontrolled cell growth with the potential to invade surrounding tissues and metastasize.

Apply this code when documentation confirms a primary malignant neoplasm affecting the short bones of the patient's right arm or hand. This diagnosis is typically established through biopsy and imaging studies. Ensure the laterality (right) and bone type (short bone) are explicitly stated in the pathology report or physician's notes.

• Differentiate from secondary (metastatic) neoplasms, which would be coded with C79.51.
• Confirm the specific bone involved to ensure it is classified as a "short bone" (e.g., carpals, phalanges) versus a long bone (e.g., humerus, radius, ulna).
• Always sequence this code as the primary diagnosis if it is the reason for the encounter, followed by any associated complications or treatment codes.