ICD-10-CM > C00-D49 > C43-C44 > C43 > C43.5 C43.5 Malignant melanoma of trunk Non-Billable/Non-Specific Type 2 Excludes malignant neoplasm of anus NOS (C21.0)malignant neoplasm of scrotum (C63.2) Codes C43.51Malignant melanoma of anal skinC43.52Malignant melanoma of skin of breastC43.59Malignant melanoma of other part of trunk