Q34
Other congenital malformations of respiratory system
Q34 is a non-billable ICD-10-CM code category for other congenital malformations of respiratory system. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Q34.0 Anomaly of pleura; Q34.1 Congenital cyst of mediastinum; Q34.8 Other specified congenital malformations of respiratory system and Q34.9 Congenital malformation of respiratory system, unspecified. Its coding notes include 2 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- congenital central alveolar hypoventilation syndrome (G47.35)
Also from chapter/block level (1 note)
- inborn errors of metabolism (E70-E88)
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are not for use on maternal records