| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| DEATH | DEATH_ICD10(C504) | Upper-outer quadrant of breast | 462 | |
| DEATH | DEATH_ICD10(C509) | Malignant tumor in other or unspecified location in mammary gland | 285 | |
| DEATH | DEATH_ICD10(C508) | Overlapping lesion of breast | 226 | |
| DEATH | DEATH_ICD10(C502) | Upper-inner quadrant of breast | 117 | |
| DEATH | DEATH_ICD10(C505) | Lower-outer quadrant of breast | 88 | |
| DEATH | DEATH_ICD10(C501) | Central portion of breast | 87 | |
| DEATH | DEATH_ICD10(C503) | Lower-inner quadrant of breast | 57 | |
| DEATH | DEATH_ICD9(1744A) | Malignant neoplasm of upper-outer quadrant of female breast | 15 | |
| DEATH | DEATH_ICD10(C500) | Nipple and areola | 6 | |
| DEATH | DEATH_ICD9(1749X) | Malignant neoplasm of breast (female), unspecified | 6 | |
| DEATH | DEATH_ICD10(C506) | Axillary tail of breast | 5 | |
| DEATH | DEATH_ICD9(1743A) | Malignant neoplasm of lower-inner quadrant of female breast | 5 | |
| DEATH | DEATH_ICD9(1745A) | Malignant neoplasm of lower-outer quadrant of female breast | 5 |