| Q30 | Congenital malformations of nose |
| Q30.0 | Choanal atresia |
| Q30.1 | Agenesis and underdevelopment of nose |
| Q30.2 | Fissured, notched and cleft nose |
| Q30.3 | Congenital perforated nasal septum |
| Q30.8 | Other congenital malformations of nose |
| Q30.9 | Congenital malformation of nose, unspecified |
| Q31 | Congenital malformations of larynx |
| Q31.0 | Web of larynx |
| Q31.1 | Congenital subglottic stenosis |
| Q31.2 | Laryngeal hypoplasia |
| Q31.3 | Laryngocele |
| Q31.5 | Congenital laryngomalacia |
| Q31.8 | Other congenital malformations of larynx |
| Q31.9 | Congenital malformation of larynx, unspecified |
| Q32 | Congenital malformations of trachea and bronchus |
| Q32.0 | Congenital tracheomalacia |
| Q32.1 | Other congenital malformations of trachea |
| Q32.2 | Congenital bronchomalacia |
| Q32.3 | Congenital stenosis of bronchus |
| Q32.4 | Other congenital malformations of bronchus |
| Q33 | Congenital malformations of lung |
| Q33.0 | Congenital cystic lung |
| Q33.1 | Accessory lobe of lung |
| Q33.2 | Sequestration of lung |
| Q33.3 | Agenesis of lung |
| Q33.4 | Congenital bronchiectasis |
| Q33.5 | Ectopic tissue in lung |
| Q33.6 | Congenital hypoplasia and dysplasia of lung |
| Q33.8 | Other congenital malformations of lung |
| Q33.9 | Congenital malformation of lung, unspecified |
| Q34 | Other congenital malformations of respiratory system |
| Q34.0 | Anomaly of pleura |
| Q34.1 | Congenital cyst of mediastinum |
| Q34.8 | Other specified congenital malformations of respiratory system |
| Q34.9 | Congenital malformation of respiratory system, unspecified |
| Q35 | Cleft palate |
| Q35.1 | Cleft hard palate |
| Q35.3 | Cleft soft palate |
| Q35.5 | Cleft hard palate with cleft soft palate |
| Q35.7 | Cleft uvula |
| Q35.9 | Cleft palate, unspecified |
| Q36 | Cleft lip |
| Q36.0 | Cleft lip, bilateral |
| Q36.1 | Cleft lip, median |
| Q36.9 | Cleft lip, unilateral |
| Q37 | Cleft palate with cleft lip |
| Q37.0 | Cleft hard palate with bilateral cleft lip |
| Q37.1 | Cleft hard palate with unilateral cleft lip |
| Q37.2 | Cleft soft palate with bilateral cleft lip |
| Q37.3 | Cleft soft palate with unilateral cleft lip |
| Q37.4 | Cleft hard and soft palate with bilateral cleft lip |
| Q37.5 | Cleft hard and soft palate with unilateral cleft lip |
| Q37.8 | Unspecified cleft palate with bilateral cleft lip |
| Q37.9 | Unspecified cleft palate with unilateral cleft lip |
| Q38 | Other congenital malformations of tongue, mouth and pharynx |
| Q38.0 | Congenital malformations of lips, not elsewhere classified |
| Q38.1 | Ankyloglossia |
| Q38.2 | Macroglossia |
| Q38.3 | Other congenital malformations of tongue |
| Q38.4 | Congenital malformations of salivary glands and ducts |
| Q38.5 | Congenital malformations of palate, not elsewhere classified |
| Q38.6 | Other congenital malformations of mouth |
| Q38.7 | Congenital pharyngeal pouch |
| Q38.8 | Other congenital malformations of pharynx |
| Q39 | Congenital malformations of esophagus |
| Q39.0 | Atresia of esophagus without fistula |
| Q39.1 | Atresia of esophagus with tracheo-esophageal fistula |
| Q39.2 | Congenital tracheo-esophageal fistula without atresia |
| Q39.3 | Congenital stenosis and stricture of esophagus |
| Q39.4 | Esophageal web |
| Q39.5 | Congenital dilatation of esophagus |
| Q39.6 | Congenital diverticulum of esophagus |
| Q39.8 | Other congenital malformations of esophagus |
| Q39.9 | Congenital malformation of esophagus, unspecified |