ICD-11 definition : Asthma is a chronic inflammatory disorder of the airways in which many cells and cellular
elements play a role. It is characterized by an increased responsiveness of the trachea
and bronchi to various stimuli and manifested by a widespread narrowing of the airways
that change in severity either spontaneously or as a result of therapy. This leads
to recurrent episodes of wheezing, breathlessness, chest tightness, and coughing,
particularly at night or in the early morning.;
Asthma is a chronic inflammatory disorder of the airways in which many cells and cellular
elements play a role. It is characterized by an increased responsiveness of the trachea
and bronchi to various stimuli and manifested by a widespread narrowing of the airways
that change in severity either spontaneously or as a result of therapy. This leads
to recurrent episodes of wheezing, breathlessness, chest tightness, and coughing,
particularly at night or in the early morning.