Be aware that DSM-5 has eliminated Asperger's as a diagnosis. Asperger's has been folded into autism spectrum disorder.

Autism spectrum diagnoses: The DSM-5 eliminates Asperger?s and PDD-NOS.

Also, in DSM-5, those with a "well established DSM-IV diagnosis" of Asperger's are "grandparented" into autism spectrum disorder.