| C504 | Malignant neoplasm of upper-outer quadrant of breast |
| C5041 | Malignant neoplasm of upper-outer quadrant of breast, female Malignant neoplasm of upper-outer quadrant of breast, female |
| C50411 | Malignant neoplasm of upper-outer quadrant of right female breast |
| C50412 | Malig neoplasm of upper-outer quadrant of left female breast Malignant neoplasm of upper-outer quadrant of left female breast |
| C50419 | Malig neoplasm of upper-outer quadrant of unsp female breast Malignant neoplasm of upper-outer quadrant of unspecified female breast |
| C5042 | Malignant neoplasm of upper-outer quadrant of breast, male |
| C50421 | Malignant neoplasm of upper-outer quadrant of right male breast |
| C50422 | Malignant neoplasm of upper-outer quadrant of left male breast |
| C50429 | Malignant neoplasm of upper-outer quadrant of unspecified male breast |
| C505 | Malignant neoplasm of lower-outer quadrant of breast |
| C5051 | Malignant neoplasm of lower-outer quadrant of breast, female Malignant neoplasm of lower-outer quadrant of breast, female |
| C50511 | Malignant neoplasm of lower-outer quadrant of right female breast |
| C50512 | Malig neoplasm of lower-outer quadrant of left female breast Malignant neoplasm of lower-outer quadrant of left female breast |
| C50519 | Malig neoplasm of lower-outer quadrant of unsp female breast Malignant neoplasm of lower-outer quadrant of unspecified female breast |
| C5052 | Malignant neoplasm of lower-outer quadrant of breast, male |
| C50521 | Malignant neoplasm of lower-outer quadrant of right male breast |
| C50522 | Malignant neoplasm of lower-outer quadrant of left male breast |
| C50529 | Malignant neoplasm of lower-outer quadrant of unspecified male breast |
| C506 | Malignant neoplasm of axillary tail of breast |
| C5061 | Malignant neoplasm of axillary tail of breast, female |
| C50611 | Malignant neoplasm of axillary tail of right female breast |
| C50612 | Malignant neoplasm of axillary tail of left female breast |
| C50619 | Malignant neoplasm of axillary tail of unspecified female breast |
| C5062 | Malignant neoplasm of axillary tail of breast, male |
| C50621 | Malignant neoplasm of axillary tail of right male breast |
| C50622 | Malignant neoplasm of axillary tail of left male breast |
| C50629 | Malignant neoplasm of axillary tail of unspecified male breast |
| C508 | Malignant neoplasm of overlapping sites of breast |
| C5081 | Malignant neoplasm of overlapping sites of breast, female |
| C50811 | Malignant neoplasm of overlapping sites of right female breast |
| C50812 | Malignant neoplasm of overlapping sites of left female breast |
| C50819 | Malignant neoplasm of overlapping sites of unspecified female breast |
| C5082 | Malignant neoplasm of overlapping sites of breast, male |
| C50821 | Malignant neoplasm of overlapping sites of right male breast Malignant neoplasm of overlapping sites of right male breast |
| C50822 | Malignant neoplasm of overlapping sites of left male breast |
| C50829 | Malignant neoplasm of overlapping sites of unspecified male breast |
| C509 | Malignant neoplasm of breast of unspecified site |
| C5091 | Malignant neoplasm of breast of unspecified site, female |
| C50911 | Malignant neoplasm of unspecified site of right female breast |
| C50912 | Malignant neoplasm of unspecified site of left female breast Malignant neoplasm of unspecified site of left female breast |
| C50919 | Malignant neoplasm of unsp site of unspecified female breast Malignant neoplasm of unspecified site of unspecified female breast |
| C5092 | Malignant neoplasm of breast of unspecified site, male |
| C50921 | Malignant neoplasm of unspecified site of right male breast |
| C50922 | Malignant neoplasm of unspecified site of left male breast |
| C50929 | Malignant neoplasm of unspecified site of unspecified male breast |
| C51 | Malignant neoplasm of vulva |
| C510 | Malignant neoplasm of labium majus |
| C511 | Malignant neoplasm of labium minus |
| C512 | Malignant neoplasm of clitoris |
| C518 | Malignant neoplasm of overlapping sites of vulva |