• H. pylori
  • HACE [high altitude cerebral edema]
  • HAI [high altitude Illness]
  • Hair loss
  • Hairy cell leukemia
  • Hairy tongue
  • Halitosis
  • Hand-foot-and-mouth disease
  • Hansen disease
  • Hantavirus infection
  • HAP [hospital-acquired pneumonia]
  • HAPE [high altitude pulmonary edema]
  • Harelip
  • HAV [hepatitis A virus]
  • Hay fever
  • HBV [hepatitis B virus]
  • HCAP [healthcare-associated pneumonia]
  • HCC [hepatocellular carcinoma]
  • HCM [hypertrophic cardiomyopathy]
  • HCV [hepatitis C virus]
  • Head and neck cancer
  • Head trauma
  • Headache, acute, adult (evaluation of)
  • Headache, acute, pediatric (evaluation of)
  • Headache, chronic
  • Health maintenance for adults
  • Heart attack
  • Heart block
  • Heart failure with preserved ejection fraction
  • Heartburn
  • Heat stroke
  • Helicobacter pylori
  • HELLP syndrome
  • Helminth infection
  • Helminth infection, Ascariasis
  • Hemangioma
  • Hemlock ingestion
  • Hemochromatosis
  • Hemoglobin SC disease
  • Hemolytic anemia
  • Hemolytic disease of the newborn
  • Hemolytic uremic syndrome
  • Hemophilia
  • Hemorrhagic stroke
  • Hemorrhoids
  • Henoch-Schonlein purpura
  • Heparin-induced thrombocytopenia
  • Hepatic abscess
  • Hepatic cirrhosis
  • Hepatic disease, alcoholic
  • Hepatic dysfunction (evaluation of)
  • Hepatic encephalopathy
  • Hepatic failure, acute
  • Hepatic steatosis
  • Hepatic vein thrombosis
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Hepatoma
  • Hepatorenal syndrome
  • Hereditary nephritis
  • Hereditary spherocytosis
  • Hernia, hiatal
  • Hernia, inguinal
  • Heroin addiction
  • Herpes simplex virus infection
  • Herpes zoster infection
  • Herpes zoster ophthalmicus
  • HF [heart failure], acute
  • HF [heart failure], chronic
  • HF [heart failure], diastolic
  • HHS [hyperosmolar hyperglycemic state]
  • HHV-6 [human herpesvirus type 6]
  • Hiatal hernia
  • Hiccups
  • Hidradenitis suppurativa
  • High altitude-related illness
  • Hip fractures
  • Hip pain
  • Hip pain, transient synovitis
  • Hirschsprung disease
  • Histiocytosis X
  • Histoplasma meningitis
  • Histoplasmosis
  • Histrionic personality disorder
  • HIT
  • HIV infection
  • HIV infection in pregnancy
  • HIV-related opportunistic infections
  • Hives
  • Hives (evaluation of)
  • HMSN [hereditary motor and sensory neuropathy]
  • HOCM [hypertrophic obstructive cardiomyopathy]
  • Hodgkin lymphoma
  • Holly/ evergreen ingestion
  • HONC [hyperosmolar nonketotic coma]
  • Hookworm
  • Hordeolum
  • Horton giant cell arteritis
  • Hospice care
  • Hospital-acquired pneumonia
  • HPV [human papilloma virus], common wart
  • HPV [human papilloma virus], genital
  • HSP [Henoch-Schonlein purpura]
  • HSV infection [herpes simplex virus infection]
  • HTN
  • Human herpesvirus-4 infection
  • Human immunodeficiency virus infection
  • Human papillomavirus, genital
  • Humeral, radial, ulnar, femoral, tibial, fibular fractures
  • Humerus, radius, ulna, femur, tibia, fibula fractures
  • Hunter disease
  • Huntington disease
  • Hurthle cell carcinoma
  • HUS [hemolytic uremic syndrome]
  • Hydatid cyst
  • Hydatidiform mole
  • Hydrocele
  • Hydrocephalus, normal pressure
  • Hydrophobia
  • Hyperaldosteronism
  • Hyperbilirubinemia, Dubin-Johnson syndrome
  • Hyperbilirubinemia, Gilbert syndrome
  • Hyperbilirubinemia, Rotor syndrome
  • Hypercalcemia of malignancy
  • Hypercapnea (evaluation of)
  • Hypercholesterolemia
  • Hypercoagulable state
  • Hyperemesis gravidarum
  • Hyperglycemia, diabetic ketoacidosis
  • Hyperglycemia, non-ketotic hyperosmolar
  • Hyperhidrosis
  • Hyperlipidemia
  • Hypermobility syndrome
  • Hypernatremia
  • Hyperosmolar hyperglycemic state
  • Hyperprolactinemia, Prolactinoma
  • Hypersensitivity pneumonitis
  • Hypertension, renovascular
  • Hypertensive emergencies
  • Hyperthermia, heat stroke
  • Hyperthyroidism
  • Hypertrichosis (evaluation of)
  • Hypertriglyceridemia
  • Hypertrophic cardiomyopathy
  • Hypertrophic pyloric stenosis
  • Hyperuricemia
  • Hypoadrenalism
  • Hypochlorhydria
  • Hypochondriasis
  • Hypogammaglobulinemia
  • Hypogonadism in females
  • Hypogonadism in males
  • Hypomagnesemia
  • Hypomania
  • Hyponatremia
  • Hypoparathyroidism
  • Hypopituitarism
  • Hypothalamic hypothyroidism
  • Hypothermia
  • Hypoventilation syndromes
  • Hypovitaminosis D
  • Hypovolemic shock
  • HZV [herpes zoster virus]