| C50 | Malignant neoplasm of breast |
| | Malignant neoplasm of nipple and areola |
| | Malignant neoplasm of nipple and areola, female |
| | Malignant neoplasm of nipple and areola, right female breast |
| | Malignant neoplasm of nipple and areola, left female breast |
| | Malignant neoplasm of nipple and areola, unspecified female breast |
| | Malignant neoplasm of nipple and areola, male |
| | Malignant neoplasm of nipple and areola, right male breast |
| | Malignant neoplasm of nipple and areola, left male breast |
| | Malignant neoplasm of nipple and areola, unspecified male breast |
| | Malignant neoplasm of central portion of breast |
| | Malignant neoplasm of central portion of breast, female |
| | Malignant neoplasm of central portion of right female breast |
| | Malignant neoplasm of central portion of left female breast |
| | Malignant neoplasm of central portion of unspecified female breast |
| | Malignant neoplasm of central portion of breast, male |
| | Malignant neoplasm of central portion of right male breast |
| | Malignant neoplasm of central portion of left male breast |
| | Malignant neoplasm of central portion of unspecified male breast |
| | Malignant neoplasm of upper-inner quadrant of breast |
| | Malignant neoplasm of upper-inner quadrant of breast, female |
| | Malignant neoplasm of upper-inner quadrant of right female breast |
| | Malignant neoplasm of upper-inner quadrant of left female breast |
| | Malignant neoplasm of upper-inner quadrant of unspecified female breast |
| | Malignant neoplasm of upper-inner quadrant of breast, male |
| | Malignant neoplasm of upper-inner quadrant of right male breast |
| | Malignant neoplasm of upper-inner quadrant of left male breast |
| | Malignant neoplasm of upper-inner quadrant of unspecified male breast |
| | Malignant neoplasm of lower-inner quadrant of breast |
| | Malignant neoplasm of lower-inner quadrant of breast, female |
| | Malignant neoplasm of lower-inner quadrant of right female breast |
| | Malignant neoplasm of lower-inner quadrant of left female breast |
| | Malignant neoplasm of lower-inner quadrant of unspecified female breast |
| | Malignant neoplasm of lower-inner quadrant of breast, male |
| | Malignant neoplasm of lower-inner quadrant of right male breast |
| | Malignant neoplasm of lower-inner quadrant of left male breast |
| | Malignant neoplasm of lower-inner quadrant of unspecified male breast |
| | Malignant neoplasm of upper-outer quadrant of breast |
| | Malignant neoplasm of upper-outer quadrant of breast, female |
| | Malignant neoplasm of upper-outer quadrant of right female breast |
| | Malignant neoplasm of upper-outer quadrant of left female breast |
| | Malignant neoplasm of upper-outer quadrant of unspecified female breast |
| | Malignant neoplasm of upper-outer quadrant of breast, male |
| | Malignant neoplasm of upper-outer quadrant of right male breast |
| | Malignant neoplasm of upper-outer quadrant of left male breast |
| | Malignant neoplasm of upper-outer quadrant of unspecified male breast |
| | Malignant neoplasm of lower-outer quadrant of breast |
| | Malignant neoplasm of lower-outer quadrant of breast, female |
| | Malignant neoplasm of lower-outer quadrant of right female breast |
| | Malignant neoplasm of lower-outer quadrant of left female breast |
| | Malignant neoplasm of lower-outer quadrant of unspecified female breast |
| | Malignant neoplasm of lower-outer quadrant of breast, male |
| | Malignant neoplasm of lower-outer quadrant of right male breast |
| | Malignant neoplasm of lower-outer quadrant of left male breast |
| | Malignant neoplasm of lower-outer quadrant of unspecified male breast |
| | Malignant neoplasm of axillary tail of breast |
| | Malignant neoplasm of axillary tail of breast, female |
| | Malignant neoplasm of axillary tail of right female breast |
| | Malignant neoplasm of axillary tail of left female breast |
| | Malignant neoplasm of axillary tail of unspecified female breast |
| | Malignant neoplasm of axillary tail of breast, male |
| | Malignant neoplasm of axillary tail of right male breast |
| | Malignant neoplasm of axillary tail of left male breast |
| | Malignant neoplasm of axillary tail of unspecified male breast |
| | Malignant neoplasm of overlapping sites of breast |
| | Malignant neoplasm of overlapping sites of breast, female |
| | Malignant neoplasm of overlapping sites of right female breast |
| | Malignant neoplasm of overlapping sites of left female breast |
| | Malignant neoplasm of overlapping sites of unspecified female breast |
| | Malignant neoplasm of overlapping sites of breast, male |
| | Malignant neoplasm of overlapping sites of right male breast |
| | Malignant neoplasm of overlapping sites of left male breast |
| | Malignant neoplasm of overlapping sites of unspecified male breast |
| | Malignant neoplasm of breast of unspecified site |
| | Malignant neoplasm of breast of unspecified site, female |
| | Malignant neoplasm of unspecified site of right female breast |
| | Malignant neoplasm of unspecified site of left female breast |
| | Malignant neoplasm of unspecified site of unspecified female breast |
| | Malignant neoplasm of breast of unspecified site, male |
| | Malignant neoplasm of unspecified site of right male breast |
| | Malignant neoplasm of unspecified site of left male breast |
| | Malignant neoplasm of unspecified site of unspecified male breast |
