G40-G47: Episodic and paroxysmal disorders

G47: Sleep disorders

Sleep disorders, coded as G47 in the ICD-10 classification, encompass a variety of conditions that interfere with an individual's sleep quality and cycle. These disorders range from simple trouble falling or staying asleep, known as insomnia, to more complex conditions such as sleep apnea, restlessness, and narcolepsy. Common symptoms across these disorders include fatigue, difficulty focusing, mood disturbance, and daytime sleepiness. There are various contributing factors that lead to sleep disorders, including stress, underlying medical conditions, irregular sleep schedules, and certain lifestyle habits. The progression of these conditions may depend largely on their cause, duration, and severity. Prolonged sleep disturbances can significantly impact the nervous system, resulting in cognitive impairments and affecting emotional and physical health. High-quality, restorative sleep is crucial for overall health, and disruptions in this can have serious consequences. Sleep disorders require clinical evaluation for proper identification and management.