ICD-10-CM > C00-D49 > C43-C44 > C43 > C43.1 C43.1 Malignant melanoma of eyelid, including canthus Non-Billable/Non-Specific Codes C43.10Malignant melanoma of unspecified eyelid, including canthusC43.11Malignant melanoma of right eyelid, including canthusC43.111Malignant melanoma of right upper eyelid, including canthusC43.112Malignant melanoma of right lower eyelid, including canthusC43.12Malignant melanoma of left eyelid, including canthusC43.121Malignant melanoma of left upper eyelid, including canthusC43.122Malignant melanoma of left lower eyelid, including canthus