• Willi-Prader syndrome (hypogenital dystrophy with diabetic tendency) 759.81
  • Willis' disease (diabetes mellitus) (see also Diabetes) 250.0
  • Wilms' tumor or neoplasm (nephroblastoma) (M8960/3) 189.0
  • Wilson's
  • Wilson-Brocq disease (dermatitis exfoliativa) 695.89
  • Wilson-Mikity syndrome 770.7
  • Window - see also Imperfect, closure aorticopulmonary 745.0
  • Winged scapula 736.89
  • Winter - see also condition
  • Wise's disease 696.2
  • Wiskott-Aldrich syndrome (eczema-thrombocytopenia) 279.12
  • Withdrawal symptoms, syndrome
  • Withdrawing reaction, child or adolescent 313.22
  • Witts' anemia (achlorhydric anemia) 280.9
  • Witzelsucht 301.9
  • Woakes' syndrome (ethmoiditis) 471.1
  • Wohlfart-Kugelberg-Welander disease 335.11
  • Woillez's disease (acute idiopathic pulmonary congestion) 518.5
  • Wolff-Parkinson-White syndrome (anomalous atrioventricular excitation) 426.7
  • Wolhynian fever 083.1
  • Wolman's disease (primary familial xanthomatosis) 272.7
  • Wood asthma 495.8