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Sleep-Wake Disorders : Changes from DSM IV to DSM 5

Sleep-Wake Disorders : Changes from DSM IV to DSM 5

Sleep-Wake Disorders : Changes from DSM IV to DSM 5

  1. Greater specification of coexisting conditions is provided for each sleep-wake disorder
  2.  In DSM-5, the DSM-IV diagnoses named sleep disorder related to another mental disorder and sleep disorder related to another medical condition have been removed.  
  3. The diagnosis of primary insomnia has been renamed insomnia disorder to avoid the differentiation between primary and secondary insomnia.
  4. DSM-5 also distinguishes narcolepsy—now known to be associated with hypocretin deficiency—from other forms of hypersomnolence(hypersomnolence disorder)
  5.  Breathing-related sleep disorders are divided into three relatively distinct disorders:a) obstructive sleep apnea hypopnea b)central sleep apnea c)sleep-related hypoventilation.
  6. The subtypes of circadian rhythm sleep disorders are expanded to include advanced sleep phase type and irregular  sleep-wake type, whereas the jet lag type has been removed. The use of the former “not otherwise specified” diagnoses in DSM-IV have been reduced by elevating rapid eye movement sleep behavior disorder and restless legs syndrome to independent disorders.