Antibiotic-responsive diarrhoea (Small intestinal bacterial overgrowth)(CCECAI unknown/unspecified)
Aortic aneurysm
Aortic valve regurgitation/insufficiency
Aortic valve stenosis
Aortocardiac fistula
Anoxia ( from bradytocia)
Anoxia (unspecified)
Anterior segment dysgenesis
Anthrax
Antibiotic-related diarrhoea