Q83

Congenital malformations of breast

Header / non-billable

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · Q83
Excludes 2

absence of pectoral muscle (Q79.8) hypoplasia of breast (N64.82) micromastia (N64.82)

Inherited from chapter 17Congenital malformations, deformations and chromosomal abnormalities
Excludes 2

inborn errors of metabolism (E70-E88)

Note

Codes from this chapter are not for use on maternal records

Official Guidelines for Q83

FY 2026 ›

Sections that reference Q83

Sections whose FY 2026 text names Q83, its Q83 category, or a range containing it — the chapter guidance above is the authoritative source.