Diagnosaurus
- Gait disorders & falls
- Galactorrhea
- Gas (flatulence)
- Gastroenteritis, acute
- Gastroenteritis, chronic
- Gastroesophageal reflux disease
- Genital ulcer
- Genital warts (condyloma acuminata)
- GERD
- GI bleeding, lower
- GI bleeding, occult
- GI bleeding, upper
- Gingival hyperplasia
- Glossitis
- Glossodynia
- Glucose, decreased serum
- Glucose, increased serum
- Glucose, increased urine
- Glucosuria
- Goiter
- Groin pain
- Groin rash
- Gynecomastia