Repetitive, seemingly driven, and apparently purposeless motor behaviour (e.g. - hand shaking or waving, body rocking, head banging, self-biting, hitting own body).
The repetitive motor behaviour interferes with social, academic, or other activities and may result in self-injury.
Onset is in the early developmental period.
The repetitive motor behaviour is not attributable to the physiological effects of a substance or neurological condition and is not better explained by another neurodevelopmental or mental disorder (e.g., trichotillomania, obsessive-compulsive disorder).
Specify if: