Q323-char group
Congenital malformations of trachea and bronchus
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Excl.: congenital bronchiectasis (Q33.4)
Excl.: congenital bronchiectasis (Q33.4)