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  2. Hypnic headache - Wikipedia

    en.wikipedia.org/wiki/Hypnic_headache

    For diagnosis of hypnic headache syndrome, headaches should occur at least 15 times per month for at least one month. Included in the differential diagnosis of a new onset nighttime headaches in the elderly is drug withdrawal, temporal arteritis, Sleep apnea, oxygen desaturation, pheochromocytoma, intracranial causes, primary and secondary neoplasms, communicating hydrocephalus, subdural ...

  3. List of ICD-9 codes 780–799: symptoms, signs, and ill-defined ...

    en.wikipedia.org/wiki/List_of_ICD-9_codes_780...

    This is a shortened version of the sixteenth chapter of the ICD-9: Symptoms, Signs and Ill-defined Conditions. It covers ICD codes 780 to 799. The full chapter can be found on pages 455 to 471 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.

  4. Central sleep apnea due to high altitude periodic breathing 327.22 G47.32 Central sleep apnea due to a medical condition, not Cheyne-Stokes 327.27 G47.31 Central sleep apnea due to a drug or substance 327.29 F10-19 Primary sleep apnea of infancy 770.81 P28.3 Obstructive sleep apnea syndromes: Obstructive sleep apnea, adult 327.23 G47.33

  5. The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization , and, in 1992, was incorporated into the 10th edition of their ...

  6. List of ICD-9 codes 320–389: diseases of the nervous system ...

    en.wikipedia.org/wiki/List_of_ICD-9_codes_320...

    In the ICD-9 system, a disease may have a cause listed in one chapter, and its manifestations listed in another. For example, Tuberculous meningitis is caused by a bacterial infection, and is therefore listed in Chapter 1, Infectious and parasitic diseases. However, as it results in a disorder of the nervous system, it is also listed in this ...

  7. Classification of sleep disorders - Wikipedia

    en.wikipedia.org/wiki/Classification_of_sleep...

    The first book on sleep [citation needed] was published in 1830 by Robert MacNish; it described sleeplessness, nightmares, sleepwalking and sleep-talking. Narcolepsy, hypnogogic hallucination, wakefulness and somnolence were mentioned by other authors of the nineteenth century.

  8. Central hypoventilation syndrome - Wikipedia

    en.wikipedia.org/wiki/Central_hypoventilation...

    Central hypoventilation syndrome (CHS) is a sleep-related breathing disorder that causes ineffective breathing, apnea, or respiratory arrest during sleep (and during wakefulness in severe cases). CHS can either be congenital (CCHS) or acquired (ACHS) later in life.

  9. List of ICD-9 codes 290–319: mental disorders - Wikipedia

    en.wikipedia.org/wiki/List_of_ICD-9_codes_290...

    The DSM-5 (2013), the current version, also features ICD-9-CM codes, listing them alongside the codes of Chapter V of the ICD-10-CM. On 1 October 2015, the United States health care system officially switched from the ICD-9-CM to the ICD-10-CM. [1] [2] The DSM is the authoritative reference work in diagnosing mental disorders in the world.