ICD-10-CM · FY 2026 APRIL UPDATE
Q33
Congenital malformations of lung
Diagnosis reference
Nonbillable categoryThis entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.
Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification
Related entries
Up to 30 descendants in this category
| CODE | DESCRIPTION | TYPE |
|---|---|---|
| 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 |
Use the complete reference
This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.
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