ICD-10-CM > C00-D49 > C43-C44 > C43 > C43.7 C43.7 Malignant melanoma of lower limb, including hip Non-Billable/Non-Specific Codes C43.70Malignant melanoma of unspecified lower limb, including hipC43.71Malignant melanoma of right lower limb, including hipC43.72Malignant melanoma of left lower limb, including hip