Q91.0 Trisomy 18, nonmosaicism (meiotic nondisjunction)
Instructional Notes:
-
Q91.0
Description: Trisomy 18, nonmosaicism (meiotic nondisjunction)
↓
-
Q91
Description: Trisomy 18 and Trisomy 13
↓
-
Q90-Q99
Description: Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Exclude2:
- mitochondrial metabolic disorders (E88.4-)
↓
-
Q00-Q99
Description: Congenital malformations, deformations and chromosomal abnormalities
Exclude2:
- inborn errors of metabolism (E70-E88)
Notes:
- Codes from this chapter are not for use on maternal records