• Agranulocytosis (see also Neutropenia) 288.09
  • Agraphia (absolute) 784.69
  • Agrypnia (see also Insomnia) 780.52
  • Ague (see also Malaria) 084.6
  • Agyria 742.2
  • AHTR (acute hemolytic transfusion reaction) - see Complications, transfusion
  • Ahumada-del Castillo syndrome (nonpuerperal galactorrhea and amenorrhea) 253.1
  • AIDS 042
  • AIDS virus (disease) (illness) 042
  • AIDS-associated retrovirus (disease) (illness) 042
  • AIDS-associated virus (disease) (illness) 042
  • AIDS-like disease (illness) (syndrome) 042
  • AIDS-related complex 042
  • AIDS-related conditions 042
  • AIDS-related virus (disease) (illness) 042
  • Ailment, heart - see Disease, heart
  • Ailurophobia 300.29
  • AIN I (anal intraepithelial neoplasia I) (histologically confirmed) 569.44
  • AIN II (anal intraepithelial neoplasia II) (histologically confirmed) 569.44
  • AIN III (anal intraepithelial neoplasia III) 230.6
  • Ainhum (disease) 136.0
  • AIPHI (acute idiopathic pulmonary hemorrhage in infants (over 28 days old) 786.31