Basal cell carcinoma skin/ right upper eyelid, inc canthus

This code identifies a malignant neoplasm originating from the basal cells of the epidermis, specifically located on the right upper eyelid, including the canthal region. Basal cell carcinoma (BCC) is the most common type of skin cancer, characterized by slow growth and rare metastasis.

Apply this code when documentation confirms a diagnosis of basal cell carcinoma affecting the skin of the patient's right upper eyelid or the adjacent canthus. This diagnosis is typically established through biopsy and histopathological examination.

• Ensure the documentation specifies "basal cell carcinoma" and not another type of skin cancer.
• Verify the exact anatomical location (right upper eyelid, including canthus) to differentiate from other eyelid or facial skin sites.
• Do not use for squamous cell carcinoma or melanoma of the eyelid; separate codes exist for those conditions.