ICD-10-CM > C00-D49 > C43-C44 > C44 > C44.1 > C44.10 C44.10 Unspecified malignant neoplasm of skin of eyelid, including canthus Non-Billable/Non-Specific Codes C44.101Unspecified malignant neoplasm of skin of unspecified eyelid, including canthusC44.102Unspecified malignant neoplasm of skin of right eyelid, including canthusC44.1021Unspecified malignant neoplasm of skin of right upper eyelid, including canthusC44.1022Unspecified malignant neoplasm of skin of right lower eyelid, including canthusC44.109Unspecified malignant neoplasm of skin of left eyelid, including canthusC44.1091Unspecified malignant neoplasm of skin of left upper eyelid, including canthusC44.1092Unspecified malignant neoplasm of skin of left lower eyelid, including canthus