Oth malignant neoplasm skin/ unsp upper limb, inc shoulder

This code signifies a malignant skin tumor that is not a melanoma, basal cell carcinoma, or squamous cell carcinoma, located on an unspecified part of the upper limb, including the shoulder. It covers rare or less common types of skin cancer affecting the arm or shoulder area.

Use this code when documentation specifies a malignant neoplasm of the skin of the upper limb or shoulder that is not otherwise classified (e.g., Merkel cell carcinoma, dermatofibrosarcoma protuberans, angiosarcoma of the skin). The physician's pathology report and clinical notes should clearly identify the malignancy type and its location on the upper limb or shoulder without further specification of laterality.

• Ensure the pathology report specifies a "malignant neoplasm" and not a benign or in situ lesion.
• Confirm the tumor type is not a basal cell, squamous cell, or melanoma, which have their own specific codes.
• Avoid this code if laterality (right or left) of the upper limb is documented; instead, use a more specific code.