Somnambulism

**Definition:** A parasomnia characterized by a partial arousal that occurs during stage IV of non-REM sleep. Affected individuals exhibit semipurposeful behaviors such as ambulation and are difficult to fully awaken. Children are primarily affected, with a peak age range of 4-6 years.

**Tree numbers:** - C10.886.659.635.700 - F03.870.664.635.700

**Synonyms:** - Nocturnal Wandering - Sleep Walking - Sleep Walking Disorder - Sleepwalking