Q33
Congenital malformations of lung
Q33 is a non-billable ICD-10-CM code category for congenital malformations of lung. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Q33.0 Congenital cystic lung, Q33.1 Accessory lobe of lung, Q33.2 Sequestration of lung, Q33.3 Agenesis of lung and 5 more. Its coding notes include 1 Excludes2 entry.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (1 note)
- inborn errors of metabolism (E70-E88)
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are not for use on maternal records
More specific codes under Q33 9
- Q33.0Congenital cystic lungBillable
- Q33.1Accessory lobe of lungBillable
- Q33.2Sequestration of lungBillable
- Q33.3Agenesis of lungBillable
- Q33.4Congenital bronchiectasisBillable
- Q33.5Ectopic tissue in lungBillable
- Q33.6Congenital hypoplasia and dysplasia of lungBillable
- Q33.8Other congenital malformations of lungBillable
- Q33.9Congenital malformation of lung, unspecifiedBillable