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The last edition of ICSD-3 is a unified classification of sleep disorders. It includes seven major categories: insomnia disorders, sleep-related breathing disorders, central disorders of hypersomnolence, circadian rhythm sleep-wake disorders, sleep-related movement disorders, parasomnias, and other sleep disorders.
“Insomnia is defined as problems falling asleep, staying asleep, waking too early or a combination of both,” explains Dr. Alicia Roth, Ph.D., of Cleveland Clinic’s Sleep Disorders Center ...
Sleep onset insomnia is difficulty falling asleep at the beginning of the night, often a symptom of anxiety disorders. Delayed sleep phase disorder can be misdiagnosed as insomnia, as sleep onset is delayed to much later than normal while awakening spills over into daylight hours. [23]
Other Sleep Disorders: Other physiological (organic) sleep disorder 327.8 G47.8 Other sleep disorder not due to a known substance or physiological condition 327.8 G47.9 Environmental sleep disorder 307.48 F51.8 Sleep disorders associated with conditions classifiable elsewhere: Fatal familial insomnia 046.8 A81.8 Fibromyalgia: 729.1 M79.7
A new study reveals a shocking potential cause for insomnia.
Sleep disturbances - insomnia, hypersomnia and delayed sleep-phase disorder - are quite prevalent in severe mental illnesses such as psychotic disorders. [25] In those with schizophrenia, sleep disorders contribute to cognitive deficits in learning and memory. Sleep disturbances often occur before the onset of psychosis.