Basal cell carcinoma skin/ unsp eyelid, including canthus

This code signifies a malignant neoplasm originating from the basal cells of the epidermis, specifically located on an unspecified eyelid or the canthus (the corner where the eyelids meet). It represents the most common type of skin cancer, characterized by slow growth and rare metastasis.

Use this code when documentation confirms a diagnosis of basal cell carcinoma affecting any part of the eyelid, including the inner or outer canthus, without specifying left or right. This diagnosis is typically made via biopsy and histopathological examination.

• Ensure the pathology report explicitly states "basal cell carcinoma" and specifies an eyelid or canthus location.
• Avoid using this code if the laterality (left or right eyelid) is documented; instead, select a more specific code.
• Do not confuse with squamous cell carcinoma or melanoma of the eyelid, which have distinct codes.