ICD-11 classes
12 Diseases of the respiratory system
Certain lower respiratory tract diseases
CA23 — Asthma
CA23.0 — Allergic asthma
CA23.00 — Allergic asthma with exacerbation

ICD-11 CA23.00 — Allergic asthma with exacerbation

This refers to acute or subacute episodes of progressively worsening shortness of breath, cough, wheezing, and chest tightness, or some combination of these symptoms in patients with proven allergic asthma. Allergic asthma can be exacerbated by allergens to which the individual is allergic, other exogenous factors such as respiratory infections, pollutants or climate change, or endogenous co-factors. Exacerbations are characterised by decreases in expiratory airflow that can be documented and quantified by simple measurement of lung function (spirometry or PEF), can vary widely among individuals and within individuals from rare to frequent. The severity of exacerbation of allergic asthma can vary from mild to very severe and life-threatening, but in general respond to standard treatments of bronchodilators (inhalers) and steroid

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Allergic asthma #3751