2027 ICD-10-CM Diagnosis Code Q34Other congenital malformations of respiratory system

ICD-10-CM Codes›Q00-Q99›Q30-Q34›Q34

ICD-10-CM Q34
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Q34 is a non-billable ICD-10-CM category code for other congenital malformations of respiratory system, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Q34.0, Q34.1, Q34.8, and Q34.9.

Code Identity

ICD-10-CM Code
Q34
Billable Status
No — Non-Billable Category
Code Describes
Other congenital malformations of respiratory system
Short Description
Other congenital malformations of respiratory system
Same as the full description in the CMS dataset.
Chapter
Q30-Q34
Congenital malformations of the respiratory system

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ30-Q34Congenital malformations of the respiratory system
CategoryQ34Other congenital malformations of respiratory system
This CodeQ34Other congenital malformations of respiratory system

Specific Coding for Other congenital malformations of respiratory systemOverview

Non-specific codes like Q34 require more characters. Use one of these billable codes instead:

  • Use Q34.0 for Anomaly of pleura

  • Use Q34.1 for Congenital cyst of mediastinum

  • Use Q34.8 for Other specified congenital malformations of respiratory system

  • Use Q34.9 for Congenital malformation of respiratory system, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Q34: its own notes plus those printed at Chapter 17. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On Q34 itself
  • congenital central alveolar hypoventilation syndrome (G47.35)
From Chapter 17 (Q00-QA1) Congenital malformations, deformations and chromosomal abnormalities applies to 900 codes
  • inborn errors of metabolism (E70-E88)

Notes

General instructions on how these codes are used.

From Chapter 17 (Q00-QA1) Congenital malformations, deformations and chromosomal abnormalities applies to 900 codes
  • Codes from this chapter are not for use on maternal records

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Q34, its category, or a range that includes it.

Code Also 1

These codes say Q34 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • P28 Other respiratory conditions originating in the perinatal period
    if applicable, congenital malformations of the respiratory system (Q30-Q34) names Q30-Q34, which includes this code

Patient EducationClinical

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

The full article covers:

  • What are birth defects?
  • What causes birth defects?
  • Who is at risk of having a baby with birth defects?
  • How are birth defects diagnosed?
  • What are the treatments for birth defects?
  • Can birth defects be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Q34Overview

What is the ICD-10 code for other congenital malformations of respiratory system?

Q34 is the ICD-10-CM category for other congenital malformations of respiratory system, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is Q34 (Other congenital malformations of respiratory system) a billable code?

No. This is a category header that groups the codes for other congenital malformations of respiratory system, and headers cannot be submitted on claims. Claims for other congenital malformations of respiratory system need a more specific code from this category, such as Q34.0, Q34.1, and Q34.8.