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Fatigue Syndrome, Chronic

A syndrome characterized by persistent or recurrent fatigue, diffuse musculoskeletal pain, sleep disturbances, and subjective cognitive impairment of 6 months duration or longer. Symptoms are not caused by ongoing exertion; are not relieved by rest; and result in a substantial reduction of previous levels of occupational, educational, social, or personal activities. Minor alterations of immune, neuroendocrine, and autonomic function may be associated with this syndrome. There is also considerable overlap between this condition and FIBROMYALGIA. (From Semin Neurol 1998;18(2):237-42; Ann Intern Med 1994 Dec 15;121(12): 953-9)

Year introduced: 1990

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Tree Number(s): C05.651.310, C10.586.500.600, C10.668.364, C23.550.291.500.392

MeSH Unique ID: D015673

Entry Terms:

  • Chronic Fatigue Syndromes
  • Fatigue Syndromes, Chronic
  • Infectious Mononucleosis-Like Syndrome, Chronic
  • Infectious Mononucleosis Like Syndrome, Chronic
  • Royal Free Disease
  • Chronic Fatigue and Immune Dysfunction Syndrome
  • Postviral Fatigue Syndrome
  • Fatigue Syndrome, Postviral
  • Postviral Fatigue Syndromes
  • Syndrome, Postviral Fatigue
  • Systemic Exertion Intolerance Disease
  • Myalgic Encephalomyelitis
  • Encephalomyelitis, Myalgic
  • Chronic Fatigue Syndrome
  • Chronic Fatigue-Fibromyalgia Syndrome
  • Chronic Fatigue Fibromyalgia Syndrome
  • Chronic Fatigue-Fibromyalgia Syndromes
  • Fatigue-Fibromyalgia Syndrome, Chronic
  • Fatigue-Fibromyalgia Syndromes, Chronic
  • Chronic Fatigue Disorder
  • Chronic Fatigue Disorders
  • Fatigue Disorder, Chronic

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