Q96.3
Mosaicism, 45, X/46, XX or XY
Billable code
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
Inherited from Q96Turner's syndrome
Excludes 1
Noonan syndrome (Q87.19)
Inherited from Q90-Q99Chromosomal abnormalities, not elsewhere classified
Excludes 2
mitochondrial metabolic disorders (E88.4-)
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 Q96.3
FY 2026 ›Sections that reference Q96.3
Sections whose FY 2026 text names Q96.3, its Q96 category, or a range containing it — the chapter guidance above is the authoritative source.
Find Q96.3 in the alphabetic index
2 index paths lead to this code