ICD-10-CM > C00-D49 > C43-C44 > C44 > C44.1 > C44.10 > C44.109 C44.109 Unspecified malignant neoplasm of skin of left eyelid, including canthus Non-Billable/Non-Specific Codes C44.1091Unspecified malignant neoplasm of skin of left upper eyelid, including canthusC44.1092Unspecified malignant neoplasm of skin of left lower eyelid, including canthus