ICD-10-CM > C00-D49 > C50-C50 > C50 > C50.0 > C50.01 C50.01 Malignant neoplasm of nipple and areola, female Non-Billable/Non-Specific Codes C50.011Malignant neoplasm of nipple and areola, right female breastC50.012Malignant neoplasm of nipple and areola, left female breastC50.019Malignant neoplasm of nipple and areola, unspecified female breast