Q33 ICD-10-CM Code: Congenital malformations of lung

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

Q33

Congenital malformations of lung

ICD-10-CM diagnosis code · United States clinical modification

Where Q33 sits

  1. 1

    Chapter 17

    Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)

  2. 2

    Section

    Congenital malformations of the respiratory system (Q30-Q34)

  3. 3

    Category Q33

    Congenital malformations of lung

  4. 4

    Code Q33

    Congenital malformations of lung

Codes under Q33

Q33 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Notes for this code

Inclusion terms

No inclusion terms are listed for Q33.

Code first

No “code first” instruction is listed for Q33.

Use additional code

No “use additional code” instruction is listed for Q33.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for Q33.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Q33.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code Q33 mean?

Q33 is the FY 2027 U.S. ICD-10-CM code for “Congenital malformations of lung.”

Is Q33 a billable or specific ICD-10-CM code?

No. Q33 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Q33 located in ICD-10-CM?

Q33 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Congenital malformations of the respiratory system (Q30-Q34) (Q30–Q34), under category Q33, Congenital malformations of lung.

What coding notes are listed for Q33?

No inclusion terms are listed for Q33 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.