- Hair excess
- Hair loss
- Halitosis
- Hallucinations
- Hand pain
- Hay fever
- HDL decreased
- Headache
- Headache, cough-associated
- Headache and fever
- Headache and nausea
- Hearing acuteness
- Hearing loss
- Heartburn
- Heart metastases
- Heart sound, fixed split S2
- Heart sound, loud P2
- Heart sound, loud S1
- Heart sound, paradoxically split S2 (or no split)
- Heart sound, S3
- Heart sound, S4
- Heart sound, widely split S2
- Heel pain
- Hematemesis
- Hematochezia
- Hematocrit, decreased
- Hematocrit, increased
- Hematuria
- Hemoglobinuria
- Hemolytic anemia
- Hemolytic anemia, microangiopathic
- Hemoptysis
- Hepatic encephalopathy
- Hepatic failure, acute
- Hepatitis, acute
- Hepatitis, chronic
- Hepatomegaly
- Hiccups
- Hip pain
- Hirsutism
- HIV and altered mental status
- HIV and brain mass
- HIV and diarrhea
- HIV and fever
- HIV and FUO
- HIV and oral lesions
- HIV and pulmonary infiltrates
- HIV and seizure
- Hives
- Hoarseness
- Horner's syndrome
- Hyperacusis
- Hypercalcemia
- Hypercholesterolemia
- Hyperglycemia
- Hyperhidrosis
- Hyperkalemia
- Hypermagnesemia
- Hypernatremia
- Hyperphosphatemia
- Hyperpigmentation
- Hypersomnia
- Hypertension
- Hypertension, secondary
- Hyperthermia
- Hypertriglyceridemia
- Hyperuricemia, endogenous
- Hyperuricemia, foods affecting
- Hyperventilation
- Hypocalcemia
- Hypoglycemia
- Hypokalemia
- Hypomagnesemia
- Hyponatremia
- Hypophosphatemia
- Hypopigmentation
- Hypotension
- Hypothermia
- Hypothermia of extremities
- Hypoventilation, chronic
- Hypoxia and normal CXR
Diagnosaurus