Q32.4 Other congenital malformations of bronchus

The ICD-10-CM code for Other congenital malformations of bronchus is Q32.4 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

17: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)

Section

Q30-Q34: Congenital malformations of the respiratory system (Q30-Q34)

Category Q32

6 codes (5 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to Q32.4:

• Tracheobronchomegaly
• Mounier-Kuhn syndrome
• Absence (of) (organ or part) (complete or partial) › bronchus (congenital)
• Aplasia › bronchus
• Agenesis › bronchus
• Blind › bronchus (congenital)
• Anomaly, anomalous (congenital) (unspecified type) › bronchus
• Atresia, atretic › bronchus

Inclusion Terms

• Absence of bronchus
• Agenesis of bronchus
• Atresia of bronchus
• Congenital diverticulum of bronchus
• Congenital malformation of bronchus NOS

U.S. Hospital Utilization

• An estimated 745 U.S. inpatient stays in 2023 included Q32.4 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

POA indicator for congenital conditions/anomalies and Q00-Q99 exception

Congenital conditions and anomalies Assign “Y” for congenital conditions and anomalies except for categories Q00- Q99, Congenital anomalies, which are on the exempt list. Congenital conditions are always considered present on admission.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)