Basal cell carcinoma of skin of breast

This code signifies the presence of basal cell carcinoma, a common, slow-growing, non-melanoma skin cancer, specifically located on the skin of the breast. It originates from the basal cells of the epidermis and rarely metastasizes. The lesion typically presents as a pearly nodule, often with rolled borders and telangiectasias.

Use this code when documentation confirms a pathological diagnosis of basal cell carcinoma affecting the skin of the breast. This applies to both primary diagnoses and secondary diagnoses when the breast lesion is a significant co-morbidity. Supporting documentation includes pathology reports, physician notes detailing the diagnosis, and anatomical site.

• Ensure the documentation specifies "basal cell carcinoma" and not another type of skin cancer.
• Verify the exact anatomical site is "skin of breast" to differentiate from other trunk locations.
• Do not confuse with melanoma or squamous cell carcinoma of the breast skin; these have distinct codes.