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Classification of Sleep Disorders

Mon, May 4, 2009

Classification ISleep Disorders

Classification of Sleep Disorders

The International Classification of Sleep Disorders (ICSD), which is worldwide authority in sleep disorders, has developed a classification primarily intended for diagnostic and epidemiologic purposes so that disorders could be indexed and morbidity and mortality information could be recorded and retrieved. This classification is not intended to provide a differential diagnostic listing of sleep disorders.

 1. Dyssomnias – the disorders of initiating and maintaining sleep and the disorders of excessive sleepiness

  • Intrinsic Sleep Disorders
  • Extrinsic Sleep Disorders
  • Circadian Rhythm Sleep Disorders

2. Parasomnias – the disorders of arousal, partial arousal, or sleep stage transition, which do not cause a primary complaint of insomnia or excessive sleepiness.

  • Arousal Disorders
  • Seep-Wake Transition Disorders
  • Parasomnias Usually Associated with REM Sleep
  • Other Parasomnias

3. Sleep Disorders – comprises disorders with a prominent sleep complaint that is secondary to another condition

  • Associated with Mental Disorders
  • Associated with Neurologic Disorders
  • Associated with Other Medical Disorders

4. Proposed Sleep Disorders – when insufficient information available to confirm their acceptance as definitive sleep disorders.

For more information on sleep disorders classification please send me a line and I will email you a link to a 399-page article completely free

Note to medical practitioners:

A differential diagnostic listing is shown on page 331 on that article. This listing helps to assist the clinician in diagnosing disease related to one of three major sleep symptoms: insomnia, excessive sleepiness, or an abnormal event during sleep. 

Watch video: Sleep Disorders Overview

Sleep Disorders

The International Classification of Sleep Disorders lists over 80 sleep and wakefulness disorders. This list can be treated as information or it can function as a guide for diagnosis by providing a brief description of the most common sleep disorders, For a detailed listing of the primary and secondary sleep disorders, go to the American Academy of Sleep Medicine (AASM) or to Sleep Education.

The most common sleep disorders and their short descriptions are:

  • Insomnia – difficulty falling asleep, stay awake and a problem returning to sleep, waking too early or experiencing no refreshing sleep
  • Obstructive Sleep Apnea – brief disruption in breathing during sleep, usually caused by a physical obstruction, with a presence of loud snoring, preceded by excessive daytime sleepiness, and morning headaches
  • Central Sleep Apnea – brief disruption in breathing during sleep, caused by a central nervous system or cardiac dysfunction, with excessive daytime sleepiness, snoring, and a regular awakening with shortness of breath
  • Narcolepsy – excessive sleepiness with uncontrollable urge to fall asleep, sudden muscle tension deficit, sleep paralysis ,and hypnagogic hallucinations
  • Restless Legs Syndrome – creeping, crawling, tingling or aching sensation in the leg(s) that occur just before falling asleep that create an irresistible urge to move leg(s) 

Some of the remaining more common sleep disorders are:

. . . plus over 50 others

 For more information on Headbanging and Bodyrocking please send me a line and I will email you a 2-page article completely free

 Additional information can be found here.


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