A carcinoma that arises from epithelial cells of the zone of skin. The disease is Monarch Disease Ontology entry MONDO_0002656 (skin carcinoma). Also known as: carcinoma of skin, carcinoma of the skin, carcinoma of zone of skin, non-melanoma cancer of skin, non-melanoma cancer of the skin, non-melanoma skin cancer, nonmelanoma skin cancer, skin cancer, non-melanoma.