Category: Q99 - Other chromosome abnormalities, not elsewhere classified

 Chapter Notes

 Section Notes

 Q99

Other chromosome abnormalities, not elsewhere classified

 Q99.0

Chimera 46, XX/46, XY

Chimera 46, XX/46, XY true hermaphrodite

 Q99.1

46, XX true hermaphrodite

46, XX with streak gonads

46, XY with streak gonads

Pure gonadal dysgenesis

 Q99.2

Fragile X chromosome

Fragile X syndrome

 Q99.8

Other specified chromosome abnormalities

 Q99.81

Usher syndrome

Use additional code to identify any auditory and visual manifestations

 Q99.811

Usher syndrome, type 1

 Q99.812

Usher syndrome, type 2

 Q99.813

Usher syndrome, type 3

 Q99.818

Other Usher syndrome

Usher syndrome, type 4

 Q99.819

Usher syndrome, unspecified

 Q99.89

Other specified chromosome abnormalities

 Q99.9

Chromosomal abnormality, unspecified