Congenital malformations of the respiratory system (Q30-Q34) ICD-10-CM
The Q30–Q34 section covers congenital malformations of the respiratory system with 36 ICD-10-CM diagnosis codes, of which 31 are billable in fiscal year 2027. The section is organized into the 5 code ranges listed below.
Code Ranges in This Section 5 ranges · 36 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the Q30–Q34 Code Range
These conditions are malformations present at birth in the nose and other parts of the breathing system.
The categories follow the affected part. Q30 separates nose malformations such as underdevelopment, a cleft, or a perforated nasal septum. Q31 separates malformations of the larynx, or voice box. Q32 distinguishes malformations of the trachea, or windpipe, from those of the bronchus. Q33 separates lung malformations, including cystic lung, an accessory lobe, and an absent or underdeveloped lung. Q34 groups other respiratory malformations, including those of the pleura and mediastinum.
Questions About This Page
How many codes are in the Q30-Q34 range?
The Q30-Q34 range contains 36 ICD-10-CM diagnosis codes in FY 2027. 31 of them are billable, and the rest are category headers that organize the section.
What conditions does Q30-Q34 cover?
The range covers congenital malformations of the respiratory system. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
