Q30.0 Choanal atresia

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Atresia of nares (anterior) (posterior)
• Congenital stenosis of nares (anterior) (posterior)

Applies from Q30 Congenital malformations of nose

Excludes1 (never code together)

• congenital deviation of nasal septum (Q67.4)

MS-DRG index

Defines the logic of DRG(s) 154-156 in MDC 03.

Approximate ICD-9-CM (GEMs)

• 748.0 Choanal atresia

Code annotations containing back-references to Q30.0

Back-references to Q30

• Code Also: P28 Other respiratory conditions originating in the perinatal period (", if applicable, congenital malformations of the respiratory system (Q30-Q34)")

Diagnosis Index entries for Q30.0

• Atresia, atretic › choana
• Atresia, atretic › nares (anterior) (posterior)
• Atresia, atretic › nose, nostril
• Closure › congenital, nose
• Closure › nose (congenital)
• Fusion, fused (congenital) › choanal
• Fusion, fused (congenital) › nares, nose, nasal, nostril (s)
• Occlusion, occluded › choanal
• Occlusion, occluded › nose › congenital
• Stenosis, stenotic (cicatricial) › nares (anterior) (posterior) › congenital
• Stricture › nares (anterior) (posterior) › congenital
• Stricture › nose › congenital
• Stricture › nostril (anterior) (posterior) › congenital

Nearby codes

• Q30 Congenital malformations of nose
• Q30.0 Choanal atresia (this code)
• 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