Sleep Initiation and Maintenance Disorders

**Definition:** 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.

**Tree numbers:** - C10.886.425.800.800 - F03.870.400.800.800

**Synonyms:** - DIMS (Disorders of Initiating and Maintaining Sleep) - Disorders of Initiating and Maintaining Sleep