• Alymphocytosis (pure) 279.2
  • Alymphoplasia, thymic 279.2
  • Alzheimer's
  • Amastia (see also Absence, breast) 611.89
  • Amaurosis (acquired) (congenital) (see also Blindness) 369.00
  • Amaurotic familial idiocy (infantile) (juvenile) (late) 330.1
  • Ambisexual 752.7
  • Amblyopia (acquired) (congenital) (partial) 368.00
  • Ameba, amebic (histolytica) - see also Amebiasis
  • Amebiasis NEC 006.9
  • Ameboma 006.8
  • Amelia 755.4
  • Ameloblastoma (M9310/0) 213.1
  • Amelogenesis imperfecta 520.5
  • Amenorrhea (primary) (secondary) 626.0
  • Amentia (see also Retardation, mental) 319
  • American
  • Ametropia (see also Disorder, accommodation) 367.9
  • Amianthosis 501
  • Amimia 784.69
  • Amino acid
  • Aminoaciduria 270.9