• Green sickness 280.9
  • Greenfield's disease 330.0
  • Greenstick fracture - see Fracture, by site
  • Greig's syndrome (hypertelorism) 756.0
  • Grief 309.0
  • Griesinger's disease (see also Ancylostomiasis) 126.9
  • Grinders'
  • Grinding, teeth 306.8
  • Grip
  • Grippe, grippal - see also Influenza
  • Grippy cold 487.1
  • Grisel's disease 723.5
  • Groin - see condition
  • Grooved
  • Ground itch 126.9
  • Growing pains, children 781.99
  • Growth (fungoid) (neoplastic) (new) (M8000/1) - see also Neoplasm, by site, unspecified nature
  • GRSA (glycopeptide resistant staphylococcus aureus) V09.8
  • Gruber's hernia - see Hernia, Gruber's
  • Gruby's disease (tinea tonsurans) 110.0
  • GSS (Gerstmann-Sträussler-Scheinker syndrome) 046.71
  • Guama fever 066.3