ICD-10-CM > C00-D49 > C50-C50 > C50 > C50.9 C50.9 Malignant neoplasm of breast of unspecified site Non-Billable/Non-Specific Codes C50.91Malignant neoplasm of breast of unspecified site, femaleC50.911Malignant neoplasm of unspecified site of right female breastC50.912Malignant neoplasm of unspecified site of left female breastC50.919Malignant neoplasm of unspecified site of unspecified female breastC50.92Malignant neoplasm of breast of unspecified site, maleC50.921Malignant neoplasm of unspecified site of right male breastC50.922Malignant neoplasm of unspecified site of left male breastC50.929Malignant neoplasm of unspecified site of unspecified male breast