• NAFLD [non-alcoholic fatty liver disease]
  • Nail fold infection
  • Nail fungus
  • Narcissistic personality disorder
  • Narcolepsy
  • Narcotic addiction
  • Nasal polyps
  • NASH [non-alcoholic steatohepatitis]
  • Nasopharyngitis
  • Nausea and vomiting in pregnancy
  • Nausea, motion sickness
  • Near drowning
  • Neck spinal disease
  • Neck trauma
  • Necrotizing fasciitis
  • Needlestick injury
  • Neimann-Pick disease
  • Neisseria gonorrhoeae
  • Neonatal hyperbilirubinemia
  • Neonatal jaundice
  • Nephritis
  • Nephroblastoma
  • Nephrolithiasis
  • Neurally-mediated reflex syncope
  • Neuroblastoma
  • Neuroborreliosis
  • Neurocardiogenic syncope
  • Neurocysticercosis
  • Neuroendocrine tumors
  • Neurofibromatosis type 1
  • Neuroleptic malignant syndrome
  • Neuromyelitis optica
  • Neuropathy
  • Neuropathy (evaluation of)
  • Neuropathy, inflammatory
  • Neuropathy, mononeuritis multiplex
  • Nevi
  • Newborn care, routine
  • NF-1 [neurofibromatosus type 1]
  • NHL [non-Hodgkin lymphoma]
  • Niacin deficiency
  • NIDDM [non-insulin-dependent diabetes mellitus]
  • Night blindness
  • Night terrors
  • Nightmares
  • Nil disease
  • Nitrogen narcosis
  • NMS [neuroleptic malignant syndrome]
  • Nocardiosis
  • Nocturnal enuresis
  • Nocturnal myoclonus syndrome
  • Non ST-elevation myocardial infarction
  • Non-allergic rhinitis
  • Non-cholera Vibrio infections
  • Non-diabetic hypoglycemia
  • Non-focal transient neurologic attack
  • Non-Hodgkin lymphoma
  • Non-insulin-dependent diabetes mellitus
  • Non-small cell lung cancer
  • Nonfunctional pituitary adenoma
  • Nonketotic hyperglycemia
  • Nonsustained ventricular tachycardia
  • Noonan syndrome
  • Normal pressure hydrocephalus
  • Nosebleed
  • Nosocomial pneumonia
  • NPH [normal pressure hydrocephalus]
  • NSCLC [non-small cell lung cancer]
  • NSTEMI [non-ST-elevation myocardial infarction]
  • NSVT [non-sustained ventricular tachycardia]
  • NTNA [non-focal transient neurologic attack]
  • Numbness (evaluation of)
  • Nutmeg toxicity