In simple words: Sleep disorders disrupt normal sleep patterns, affecting physical and mental health, thinking, and daily function.Examples include insomnia (trouble falling asleep or staying asleep), sleep apnea (interrupted breathing during sleep), restless legs syndrome (an urge to move the legs), narcolepsy (sudden sleep attacks), and parasomnias (unusual behaviors during sleep like sleepwalking).

Sleep disorders encompass a range of conditions that affect the ability to fall asleep, stay asleep, or experience restful sleep. This can manifest as difficulty initiating sleep, frequent awakenings during the night, early morning awakenings, excessive daytime sleepiness, or abnormal behaviors during sleep.It excludes nightmares (F51.5), nonorganic sleep disorders (F51.-), sleep terrors (F51.4), and sleepwalking (F51.3).

Example 1: A 45-year-old patient presents with persistent difficulty falling asleep and staying asleep, impacting daytime functioning. After evaluation, a diagnosis of chronic insomnia is made (G47.00)., A 60-year-old patient's spouse reports loud snoring and episodes of breathing cessation during sleep. A sleep study confirms obstructive sleep apnea (G47.33)., A 25-year-old patient experiences sudden episodes of muscle weakness and falls asleep involuntarily during the day, consistent with narcolepsy with cataplexy (G47.411).

Documentation should include the type of sleep disorder, symptom details (duration, frequency, severity), impact on daily activities, sleep diaries, results of sleep studies, and any underlying medical or mental health conditions.