Aspicularis tetraptera (mouse pinworm)
Ataxia (type unspecified)
Arabian fading syndrome (Pinky Arab syndrome)
Arenavirus infection
Arteriovenous (AV) fistula/malformation
Arthritis (unspecified)
Arthritis – septic (infective)(site unspecified)
Arthrodema benhamiae infection
Arthrogryposis (Arthrogryposis multiplex congenita)
Articular gout