ICD-11 definition : Irritable bowel syndrome (IBS) is a functional bowel disorder in which abdominal pain
or discomfort is associated with defecation or a change in bowel habit, and with features
of disordered defecation.;
Irritable bowel syndrome (IBS) is a functional bowel disorder in which abdominal pain
or discomfort is associated with defecation or a change in bowel habit, and with features
of disordered defecation.