| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| OUTPAT | OUTPAT_ICD10(Q838) | Other congenital malformations of breast | 289 | |
| OUTPAT | OUTPAT_ICD10(Q831) | Accessory breast | 226 | |
| INPAT | INPAT_ICD10(Q838) | Other congenital malformations of breast | 172 | |
| INPAT | INPAT_ICD10(Q831) | Accessory breast | 72 | |
| OUTPAT | OUTPAT_ICD10(Q839) | Congenital malformation of breast, unspecified | 67 | |
| PRIM_OUT | PRIM_OUT_ICD10(Q838) | Other congenital malformations of breast | 59 | |
| OUTPAT | OUTPAT_ICD10(Q833) | Accessory nipple | 40 | |
| PRIM_OUT | PRIM_OUT_ICD10(Q831) | Accessory breast | 28 | |
| PRIM_OUT | PRIM_OUT_ICD10(Q839) | Congenital malformation of breast, unspecified | 21 | |
| INPAT | INPAT_ICD10(Q839) | Congenital malformation of breast, unspecified | 17 | |
| PRIM_OUT | PRIM_OUT_ICD10(Q83) | Congenital malformations of breast | 13 | |
| INPAT | INPAT_ICD10(Q833) | Accessory nipple | 12 | |
| PRIM_OUT | PRIM_OUT_ICD10(Q833) | Accessory nipple | 12 | |
| OUTPAT | OUTPAT_ICD10(Q830) | Congenital absence of breast with absent nipple | 9 | |
| INPAT | INPAT_ICD10(Q830) | Congenital absence of breast with absent nipple | 8 | |
| OUTPAT | OUTPAT_ICD10(Q83) | Congenital malformations of breast | 8 |