• Baseball finger 842.13
  • Basedow's disease or syndrome (exophthalmic goiter) 242.0
  • Basic - see condition
  • Basilar - see condition
  • Bason's (hidrotic) ectodermal dysplasia 757.31
  • Basopenia 288.59
  • Basophilia 288.65
  • Basophilism (corticoadrenal) (Cushing's) (pituitary) (thymic) 255.0
  • Bassen-Kornzweig syndrome (abetalipoproteinemia) 272.5
  • Bat ear 744.29
  • Bateman's
  • Bathing cramp 994.1
  • Bathophobia 300.23
  • Batten's disease, retina 330.1 [362.71]
  • Batten-Mayou disease 330.1 [362.71]
  • Batten-Steinert syndrome 359.21
  • Battered
  • Battey mycobacterium infection 031.0
  • Battle exhaustion (see also Reaction, stress, acute) 308.9
  • Battledore placenta - see Placenta, abnormal
  • Baumgarten-Cruveilhier (cirrhosis) disease, or syndrome 571.5
  • Bauxite