ICD-10-CM · Chapter 17 · Q00-QA1
Q83 Congenital malformations of breast
Excludes 2 (not included here)
- absence of pectoral muscle (Q79.8)
- hypoplasia of breast (N64.82)
- micromastia (N64.82)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Q83..0 | Congenital absence of breast with absent nipple | Yes |
| Q83..1 | Accessory breast | Yes |
| Q83..2 | Absent nipple | Yes |
| Q83..3 | Accessory nipple | Yes |
| Q83..8 | Other congenital malformations of breast | Yes |
| Q83..9 | Congenital malformation of breast, unspecified | Yes |
Last reviewed: September 2026