ICD-11 classes
12 Diseases of the respiratory system
Certain lower respiratory tract diseases
CA26 — Chronic bronchiolitis
ICD-11 CA26 — Chronic bronchiolitis
Bronchiolitis and bronchiolitis obliterans are general terms used to describe a nonspecific inflammatory injury that primarily affects the small airways and generally spares the interstitium. Bronchiolitis may be caused by inhalation injury, infection, or drugs; associated with organ transplantation or connective tissue disease; or may be idiopathic. The main pathologic categories of bronchiolitis are: constrictive, proliferative, follicular, airway-centred interstitial fibrosis, and diffuse panbronchiolitis. The constrictive and proliferative patterns may occur together.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code CA26 contains 4 clarifying diagnoses:
- CA26.0 — Chronic obliterative bronchiolitis
- CA26.1 — Diffuse panbronchiolitis
- CA26.Y — Other specified chronic bronchiolitis
- CA26.Z — Chronic bronchiolitis, unspecified