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Subjects undergo a series of five 20-minute sleeping opportunities with an absence of alerting factors at 2-hour intervals on one day. The test is based on the idea that the sleepier people are, the faster they will fall asleep. [15] [16] The Maintenance of Wakefulness Test (MWT) is also used to quantitatively assess daytime sleepiness. This ...
Narcolepsy with cataplexy 347.01 G47.411 Narcolepsy without cataplexy 347.00 G47.419 Narcolepsy due to medical condition 347.10 G47.421 Narcolepsy, unspecified 347.00 G47.43 Recurrent hypersomnia 780.54 G47.13 - Kleine-Levin Syndrome: 327.13 G47.13 - Menstrual-related hypersomnia 327.13 G47.13 Idiopathic hypersomnia with long sleep time 327.11 ...
When a person struggles to fall asleep or stay asleep with no obvious cause, it is referred to as insomnia, [2] which is the most common sleep disorder. [3] Others include sleep apnea, narcolepsy and hypersomnia (excessive sleepiness at inappropriate times), sleeping sickness (disruption of sleep cycle due to infection), sleepwalking, and night ...
The axial system uses International Classification of Diseases (ICD-9- CM) coding wherever possible. Additional codes are included for procedures and physical signs of particular interest to sleep disorders clinicians and researchers. Diagnoses and procedures are listed and coded on three main "axes." The axial system is arranged as follows: [16]
It has distinct meanings and causes. It can refer to the usual state preceding falling asleep, [1] the condition of being in a drowsy state due to circadian rhythm disorders, or a symptom of other health problems. It can be accompanied by lethargy, weakness and lack of mental agility. [2]
Narcolepsy is a chronic neurological disorder that impairs the ability to regulate sleep–wake cycles, and specifically impacts REM (rapid eye movement) sleep. [1] The pentad symptoms of narcolepsy include excessive daytime sleepiness (EDS), sleep-related hallucinations, sleep paralysis, disturbed nocturnal sleep (DNS), and cataplexy. [1]
Horsnell has other common signs of narcolepsy as well, including nightmares and visual and tactile hypnagogic hallucinations, which occur while a person is falling asleep. Typically manifesting as ...
IH has long been considered a rare disease, believed to be 10 times less frequent than narcolepsy. [26] The prevalence of narcolepsy (with cataplexy) is estimated between 1/3,300 and 1/5,000. [ 47 ] Although the true prevalence of IH is unknown, it is estimated at 1/10,000 to 1/25,000 for the long sleep form and 1/11,000 to 1/100,000 without ...