• G6PD deficiency [glucose-6-phosphate-dehydrogenase deficiency]
  • GA [granuloma annulare]
  • GABHS [group A beta hemolytic strep]
  • GAD [generalized anxiety disorder]
  • Gait disorders in children (evaluation of)
  • Gait disorders, ataxia (evaluation of)
  • Galactorrhea
  • Gallbladder inflammation
  • Gallstones
  • Ganglion cyst
  • Gangrene
  • Gardner syndrome
  • Gardnerella vaginalis
  • Gastric cancer
  • Gastrinoma
  • Gastritis
  • Gastroenteritis
  • Gastroesophageal reflux disease
  • Gastroesophageal reflux, infant
  • Gastroparesis
  • Gaucher disease
  • GBS [Group B streptococcal infection]
  • GBS [Guillain-Barre syndrome]
  • GC [gonococcal infection]
  • GCA [giant cell arteritis]
  • Gender dysphoria
  • Gender identity disorders
  • Gender, ambiguous genitalia
  • Generalized anxiety disorder
  • Generalized seizures in adults
  • Generalized seizures in children
  • Genital abnormalities, male
  • Genital tract chlamydia infection
  • Genital ulcer, Behcet syndrome
  • Genital ulcer, herpes
  • Genital ulcer, LGV
  • Genital ulcer, syphilis
  • Genital ulcers, chancroid
  • Genital ulcers, HIV
  • Genital warts
  • Geographic tongue
  • GERD [gastroesophageal reflux disease]
  • GERD, infant
  • Geriatric functional status optimization
  • Germ cell cancer, testis
  • German measles
  • Gerstmann-Straussler-Scheinker disease
  • Gestational diabetes mellitus
  • Gestational hypertension
  • Giant cell arteritis
  • Giardiasis
  • Gigantism
  • Gilbert syndrome
  • Gingivitis
  • GIST [gastrointestinal stromal tumors]
  • Glandular fever
  • Glaucoma, angle-closure
  • Glomerulonephritis
  • Glucose-6-phosphatase deficiency
  • Glucose-6-phosphate-dehydrogenase deficiency
  • Goiter, toxic multinodular
  • Golfer's elbow
  • Gonadal dysgenesis
  • Gonorrhea infection
  • Goodpasture disease
  • Goodpasture syndrome
  • Gout
  • GPA [granulomatosis with polyangiitis]
  • Graft-versus-host disease
  • Grand mal seizures
  • Granuloma annulare
  • Granulomatosis with polyangiitis (Wegener)
  • Graves disease
  • Groin pain
  • Group A beta hemolytic strep
  • Group B streptococcal infection
  • Growth hormone deficiency in children
  • Growth hormone deficiency, adults
  • GSD type I [glycogen storage disease, type I]
  • Guillain-Barre syndrome
  • Gum disease
  • Guttate psoriasis
  • GVHD [graft-versus-host disease]
  • Gynecomastia