Q913-char group
Edwards syndrome and Patau syndrome
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Codes within Q91
Q91.0Trisomy 18, meiotic nondisjunctionQ91.1Trisomy 18, mosaicism (mitotic nondisjunction)Q91.2Trisomy 18, translocationQ91.3Edwards syndrome, unspecifiedQ91.4Trisomy 13, meiotic nondisjunctionQ91.5Trisomy 13, mosaicism (mitotic nondisjunction)Q91.6Trisomy 13, translocationQ91.7Patau syndrome, unspecified