• Bianchi's syndrome (aphasia-apraxia-alexia) 784.69
  • Bicornuate or bicornis uterus 752.3
  • Bicuspid aortic valve 746.4
  • Biedl-Bardet syndrome 759.89
  • Bielschowsky's disease 330.1
  • Bielschowsky-Jansky
  • Biemond's syndrome (obesity, polydactyly, and mental retardation) 759.89
  • Biermer's anemia or disease (pernicious anemia) 281.0
  • Biett's disease 695.4
  • Bifid (congenital) - see also Imperfect, closure
  • Biforis uterus (suprasimplex) 752.3
  • Bifurcation (congenital) - see also Imperfect, closure
  • Big spleen syndrome 289.4
  • Bigeminal pulse 427.89
  • Bigeminy 427.89
  • Bilateral - see condition
  • Bile duct - see condition
  • Bile pigments in urine 791.4
  • Bilharziasis (see also Schistosomiasis) 120.9
  • Biliary - see condition
  • Bilious (attack) - see also Vomiting
  • Bilirubinuria 791.4