The field of sleep medicine is constantly evolving as more research is being conducted to much better understand the symptoms, triggers, and finest treatments for sleep conditions.
Throughout the decades as more research and studies were performed, the amount of sleep disorders being found started to rapidly increase. In 1990 The AASM, together with other professional societies including the European Sleep Research Study Society, The Japanese Society of Sleep Research, and the Latin American Sleep Society released the International Category of Sleep Disorders (ICSD), which is a “main diagnostic, epidemiological, and coding resource for clinicians and researchers in the field of sleep and sleep medicine.”
How Sleep Conditions are Categorized
The ICSD was put together for the purpose to “discriminate between disorders and to assist in an understanding of signs, etiology, and pathophysiology that permits appropriate treatment” (source). Since the release of the first edition in 1990, the ICSD published a 2nd edition in 2005, and is now on its 3rd edition, published in 2014.
A few of the most significant differences in between the Second and 3rd editions are how the numerous sleep conditions were divided into categories. The 2005 edition used 3 broad categories to organize all of the sleep conditions under either dysommnias (disorders making getting to sleep or remaining asleep difficult), parasomnias (conditions that horn in the sleep process), and sleep disorders related to a mental, neurologic, or other medical conditions (conditions whose symptoms are not primary unto themselves however triggered by other conditions).
The updated 3rd edition now classifies sleep disorders under 6 significant categories: insomnia, sleep related breathing disorders, main conditions of hypersomnolence, body clock sleep-wake disorders, parasomnias, and sleep associated motion conditions.
The ICSD-3 Sleep Disorder Categories  * For more information on different conditions click the highlighted conditions for in depth short articles. *.
The ICSD-3 specifies sleeping disorders as “a duplicated problem with sleep initiation, duration, debt consolidation, or quality that happens regardless of appropriate chance and circumstances for sleep, and leads to some form of daytime impairment.”.
The ICSD-3 groups insomnia into 4 significant categories listed below.
- Persistent insomnia disorder.
- Short-term sleeping disorders disorder.
- Other insomnia condition.
- Isolated signs and normal variant.
Sleep-Related Breathing Disorders
These disorders are divided into those of main origin (characterized by a lack of breathing effort) and those triggered by a blockage of the respiratory tracts.
- Obstructive sleep apnea conditions.
- Obstructive sleep apnea, grownup.
- Obstructive sleep apnea, pediatric.
- Central sleep apnea syndrome.
- Central sleep apnea with Cheyne-Stokes breathing.
- Central sleep apnea due to a medical disorder w/o Cheyne-Stokes breathing.
iii. Central sleep apnea due to high altitude routine breathing.
- Central sleep apnea due to medicaiton or substance.
- Primary central sleep apnea.
- Main main sleep apnea of infancy.
vii. Primary central sleep apnea of prematurity.
viii. Treatment-emergent main sleep apnea.
- Sleep-related hypoventilation disorders.
- Weight problems hypoventilation syndrome.
- Congenital main alveoloar hypoventilation syndrome.
iii. Late-onset main hypoventilation with hypothalamic dysfunction.
- Idiopathic central alveolar hypoventilation.
- Sleep-related hypoventilation due to medication or substance.
- Sleep-related hypoventilation due to medical disorder.
- Sleep-related hypoxemia condition.
- Isolated signs and regular versions.
Body Clock Sleep-Wake Disorders
These conditions are identified by a disruption or interruption to the normal body clock, which triggers clients to experience excessive daytime sleepiness, sleeping disorders, or both.
- Delayed sleep-wake phase condition.
- Advanced sleep-wake stage disorder.
- Irregular sleep-wake rhythm.
- Non-24-hour sleep-wake rhythm condition.
- Shift work disorder.
- Jet lag condition.
- Body clock sleep-wake disorder not otherwise specified (NOS).
Central Conditions of Hypersomnolence
The ICSD-3 classifies this class of sleep disorders as those where “the main problem is daytime drowsiness not caused by disturbed nocturnal sleep or crookeded circadian rhythms.”.
- Narcolepsy type I.
- Narcolepsy type II.
- Idiopathic hypersomnia.
- Kleine-Levin syndrome.
- Hypersomnia due to a medical condition.
- Hypersomnia due to a medication or substance.
- Hypersomnia related to a psychiatric disorder.
- Insufficient sleep syndrome.
Sleep-Related Motion Conditions
This class of disorders is characterizeed by easy, often repetitive motions throughout sleep or wake that can interfere with the sleep of the patient, the client’s bed partner, or both.
- Restelss leg syndrome.
- Periodic limb motion disorder.
c.Sleep related leg cramps.
- Sleep-related bruxism.
- Sleep-related rhythmic movement condition.
- Benign sleep myoclonus of infancy.
- Propriospinal myoclonus at sleep beginning.
- Sleep-related motion disorder due to medical condition.
- Sleep-related motion condition due to medication or substance.
- Sleep-related motion disorder, undefined.
A parasomnia is an unwanted physical motion or action throughout sleep. This group of conditions is categorized by conditions or stimulation from NREM sleep, those connected with Rapid Eye Movement, and other parasomnias.
- NREM-related parasomnias.
- Conditions of arousal from NREM sleep.
- Confusional arousals.
- Sleep fears.
- Sleep-related eating disorders.
- REM-related parasomnias.
- REM sleep habits disorder.
- Reoccurring separated sleep paralysis.
iii. Headache condition.
- Other parasomnias.
- Exploding head syndrome.
- Sleep-related hallucinations.
iii. Sleep enuresis.
- Parasomnia due to medical disorder.
- Parasomnia due to medication or compound.
- Parasomnia, unspecified.
- Isolated symptoms and normal variants.
- Sleep talking.
Exactly What to do if you Suspect you have a Sleep Disorder
With over 80 listed sleep conditions, and more that are being looked into, it’s important for patients experiencing the various kinds of sleep conditions to seek medical treatment. If you think that your sleep issues might be caused by a condition, there are lots of things you can do to solve your sleep issues from Do It Yourself suggestions and techniques such as practicing much better sleep health, to calling a sleep center to schedule an inlab sleep study, or an in the house sleep test for certain pre-screened conditions such as obstructive sleep apnea.
If you live in Alaska and think you might be suffering from among the many sleep conditions listed above, you can take advantage of a totally free 10-minute phone assessment with the Alaska Sleep Center where one of our experienced sleep professionals can assist identify whether you have to have a sleep study to diagnose your condition. To get this complimentary offer click on the link listed below.