ICD-10-CM > C00-D49 > C50-C50 > C50 > C50.0 > C50.02 C50.02 Malignant neoplasm of nipple and areola, male Non-Billable/Non-Specific Codes C50.021Malignant neoplasm of nipple and areola, right male breastC50.022Malignant neoplasm of nipple and areola, left male breastC50.029Malignant neoplasm of nipple and areola, unspecified male breast