Adenoma (site unspecified)
Adenovirus infection
Adhesions (site unspecified)
Adverse reaction to blood transfusion
Adverse reaction to drug – anti-parasitic preparation
Adverse reaction to drug – non-steroidal anti-inflammatory drug (NSAID)(unspecified)
Addisonian crisis (severe adrenocortical insufficiency)
Aleutian disease
Algal overgrowth
Alkalosis