ICD-10-CM > Q00-QA0 > Q30-Q34 > Q33 Q33 Congenital malformations of lung Non-Billable/Non-Specific Codes Q33.0Congenital cystic lungQ33.1Accessory lobe of lungQ33.2Sequestration of lungQ33.3Agenesis of lungQ33.4Congenital bronchiectasisQ33.5Ectopic tissue in lungQ33.6Congenital hypoplasia and dysplasia of lungQ33.8Other congenital malformations of lungQ33.9Congenital malformation of lung, unspecified