Oth malignant neoplasm skin/ right upper eyelid, inc canthus

This code signifies a malignant tumor of the skin located on the right upper eyelid, specifically including the canthus (the corner of the eye). This neoplasm is not a basal cell carcinoma, squamous cell carcinoma, or melanoma, but rather another specified type of skin cancer.

Apply this code when documentation clearly indicates a primary malignant neoplasm of the skin on the right upper eyelid, including the canthus, that is not otherwise classified. This code is appropriate for diagnoses such as Merkel cell carcinoma, sebaceous carcinoma, or other rare skin malignancies in this specific anatomical location.

• Ensure the pathology report specifies "other specified" or a rare type of skin malignancy, and not basal cell, squamous, or melanoma.
• Verify laterality (right) and anatomical site (upper eyelid, including canthus) are explicitly documented.
• Do not use this code for benign lesions or uncertain behavior neoplasms; refer to the appropriate D-codes or C44.10x codes for unspecified types.