• Guertin's disease (electric chorea) 049.8
  • Guillain-Barré disease or syndrome 357.0
  • Guinea worms (infection) (infestation) 125.7
  • Guinon's disease (motor-verbal tic) 307.23
  • Gull and Sutton's disease - see Hypertension, kidney
  • Gull's disease (thyroid atrophy with myxedema) 244.8
  • Gum - see condition
  • Gumboil 522.7
  • Gumma (syphilitic) 095.9
  • Gunn's syndrome (jaw-winking syndrome) 742.8
  • Gunshot wound - see also Wound, open, by site
  • Günther's disease or syndrome (congenital erythropoietic porphyria) 277.1
  • Gustatory hallucination 780.1
  • Gynandrism 752.7
  • Gynandroblastoma (M8632/1)
  • Gynandromorphism 752.7
  • Gynatresia (congenital) 752.49
  • Gynecoid pelvis, male 738.6
  • Gynecological examination V72.31
  • Gynecomastia 611.1
  • Gynephobia 300.29
  • Gyrate scalp 757.39