2025 ICD-10-CM code G47.419
(Active) Effective Date: N/A Diseases of the nervous system - Narcolepsy 6 Feed
Narcolepsy without cataplexy. This condition involves excessive daytime sleepiness and sudden, uncontrollable episodes of falling asleep during the day, but without the sudden loss of muscle tone (cataplexy) often associated with narcolepsy.
Medical necessity for services related to narcolepsy without cataplexy should be supported by documentation of the impact of excessive daytime sleepiness on the patient's daily life, including their ability to work, study, and participate in social activities. The need for specific treatments, such as medications or behavioral therapies, should be justified based on the severity of symptoms and their impact on the patient's overall well-being.
Diagnosis of narcolepsy without cataplexy involves a thorough medical history, physical examination, and sleep studies, such as polysomnography and the multiple sleep latency test (MSLT), to rule out other sleep disorders. Treatment focuses on managing symptoms and may include lifestyle changes, medications like stimulants and antidepressants, and behavioral therapies.
In simple words: Narcolepsy without cataplexy is a sleep disorder where you feel very sleepy during the day and can suddenly fall asleep, even while talking, working, or eating.Unlike some forms of narcolepsy, it does not involve losing muscle control due to strong emotions.
Narcolepsy without cataplexy (type 2 narcolepsy) is a chronic neurological sleep disorder characterized by excessive daytime sleepiness, causing an individual to fall asleep suddenly and involuntarily during the day.It is distinguished from type 1 narcolepsy by the absence of cataplexy, which is the sudden loss of muscle tone often triggered by strong emotions. Other symptoms may include sleep paralysis, hallucinations, and disrupted nighttime sleep.
Example 1: A 25-year-old patient presents with excessive daytime sleepiness, frequently falling asleep at work and during social activities. They deny experiencing cataplexy. Following a sleep study, they are diagnosed with narcolepsy without cataplexy., A student reports difficulty staying awake in class despite adequate nighttime sleep. They undergo a sleep study, which reveals narcolepsy without cataplexy. The physician recommends lifestyle adjustments and medication to manage their symptoms., A 40-year-old individual experiences persistent daytime sleepiness and reports episodes of sleep paralysis. They do not have cataplexy. After consulting a sleep specialist and completing diagnostic tests, they receive a diagnosis of narcolepsy without cataplexy.
Documentation should include a detailed description of the patient's sleep patterns, including the frequency and duration of daytime sleep episodes. The results of sleep studies, such as polysomnography and MSLT, should be included, along with any other relevant diagnostic findings. The absence of cataplexy should be explicitly noted to differentiate it from type 1 narcolepsy.
- Specialties:Sleep medicine, Neurology, Psychiatry
- Place of Service:Office, Sleep Center, Hospital, Telehealth Provided in Patient’s Home, Telehealth Provided Other than in Patient’s Home