Q33.9 Congenital malformation of lung, unspecified

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

MS-DRG index

Defines the logic of DRG(s) 205-206 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 748.60 Anomaly of lung, unspecified

Code annotations containing back-references to Q33.9

Back-references to Q33

• 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 Q33.9

• Anomaly, anomalous (congenital) (unspecified type) › lung (fissure) (lobe)
• Anomaly, anomalous (congenital) (unspecified type) › pulmonary
• Deformity › lung (congenital)
• Disease, diseased › lung › congenital
• Malformation (congenital) › lung

Nearby codes

• 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 (this code)