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2009 ICD-9-CM
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| Sleep Initiation and Maintenance Disorders Disorders of Initiating and Maintaining Sleep | Insomnia | Sleeplessness | Chronic Insomnia | DIMS (Disorders of Initiating and Maintaining Sleep) | Early Awakening | Insomnia Disorder | Nonorganic Insomnia | Primary Insomnia | Rebound Insomnia Disorders characterized by impairment of the ability to initiate or maintain sleep. This may occur as a primary disorder or in association with another medical or psychiatric condition. |