FY2027 ICD-10-CM reference
Q33: Congenital malformations of lung
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Congenital malformations of lung. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
More specific FY2027 codes
- Q33.0: Congenital cystic lungBillable code
- Q33.1: Accessory lobe of lungBillable code
- Q33.2: Sequestration of lungBillable code
- Q33.3: Agenesis of lungBillable code
- Q33.4: Congenital bronchiectasisBillable code
- Q33.5: Ectopic tissue in lungBillable code
- Q33.6: Congenital hypoplasia and dysplasia of lungBillable code
- Q33.8: Other congenital malformations of lungBillable code
- Q33.9: Congenital malformation of lung, unspecifiedBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Instructional note
Codes from this chapter are not for use on maternal records
Source: Q00-QA1 (chapter, inherited).
Excludes2
inborn errors of metabolism (E70-E88)
Source: Q00-QA1 (chapter, inherited).
Compare the FY2027 additions, removals and billable-status changes
What does Q33 mean in FY2027?
The official ICD-10-CM descriptor is Congenital malformations of lung. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is Q33 billable in FY2027?
The FY2027 order file marks Q33 as a nonbillable heading. Select a complete billable child code.
Does Q33 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition