MrsPeel wrote:
I don't think there is a disorder just for repetitive behaviours. Unless they are tics, then it might be tourette's.
A few years ago, repetitive behaviours might have come under PDD-NOS (pervasive developmental disorder not otherwise sepcified). Nowadays if it was bad enough to need a diagnosis it would probably still come under autism spectrum disorder.
But I guess it would be unusual for someone with autism to have the repetitive behaviours and no problems at all in the social / communication areas. The issues tend to go together. Are you referring to an actual person/case?
There is a diagnosis related to only diagnostic criteria B for Autism Spectrum Disorder, it's Stereotypic Movement Disorder. Although most people say that it's usually not diagnosis on it's own.