Congenital malformations of the respiratory system
36 codes in this section
About Section Q30-Q34
Section Q30-Q34 (Q30-Q34) covers congenital malformations of the respiratory system. It sits within the Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders chapter (Q00-QA0). This section contains 36 ICD-10-CM codes, 31 billable diagnoses you can submit on a claim, and 5 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in Q30-Q34
Grouped by 3-character root code. Click any code for full detail.
| Q30.0 | Choanal atresia | Billable |
| Q30.1 | Agenesis and underdevelopment of nose | Billable |
| Q30.2 | Fissured, notched and cleft nose | Billable |
| Q30.3 | Congenital perforated nasal septum | Billable |
| Q30.8 | Other congenital malformations of nose | Billable |
| Q30.9 | Congenital malformation of nose, unspecified | Billable |
| Q31.0 | Web of larynx | Billable |
| Q31.1 | Congenital subglottic stenosis | Billable |
| Q31.2 | Laryngeal hypoplasia | Billable |
| Q31.3 | Laryngocele | Billable |
| Q31.5 | Congenital laryngomalacia | Billable |
| Q31.8 | Other congenital malformations of larynx | Billable |
| Q31.9 | Congenital malformation of larynx, unspecified | Billable |
| Q32.0 | Congenital tracheomalacia | Billable |
| Q32.1 | Other congenital malformations of trachea | Billable |
| Q32.2 | Congenital bronchomalacia | Billable |
| Q32.3 | Congenital stenosis of bronchus | Billable |
| Q32.4 | Other congenital malformations of bronchus | Billable |
| Q33.0 | Congenital cystic lung | Billable |
| Q33.1 | Accessory lobe of lung | Billable |
| Q33.2 | Sequestration of lung | Billable |
| Q33.3 | Agenesis of lung | Billable |
| Q33.4 | Congenital bronchiectasis | Billable |
| Q33.5 | Ectopic tissue in lung | Billable |
| Q33.6 | Congenital hypoplasia and dysplasia of lung | Billable |
| Q33.8 | Other congenital malformations of lung | Billable |
| Q33.9 | Congenital malformation of lung, unspecified | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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