Basal cell carcinoma skin/ left lower eyelid, inc canthus

This code signifies a malignant neoplasm originating from the basal cells of the epidermis, specifically located on the left lower eyelid, encompassing the canthal region. It represents 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 left lower eyelid, including any involvement of the inner or outer corner of the eye. This diagnosis is typically supported by pathology reports following a biopsy or excision.

• Ensure the documentation clearly specifies "basal cell carcinoma" and not another type of skin cancer.
• Verify the laterality (left) and the specific eyelid (lower) are explicitly stated.
• Distinguish this from squamous cell carcinoma or melanoma of the eyelid, which have different code assignments.