| ICD Code | Description |
|---|---|
| C500 | Malignant neoplasm of nipple and areola |
| C501 | Malignant neoplasm of central portion of breast |
| C502 | Malignant neoplasm of upper-inner quadrant of breast |
| C503 | Malignant neoplasm of lower-inner quadrant of breast |
| C504 | Malignant neoplasm of upper-outer quadrant of breast |
| C505 | Malignant neoplasm of lower-outer quadrant of breast |
| C506 | Malignant neoplasm of axillary tail of breast |
| C508 | Malignant neoplasm of overlapping sites of breast |
| C509 | Malignant neoplasm of breast of unspecified site |