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Asperger Syndrome – PDD-NOS


  • The Diagnostic and Statistical Manual version 5 (DSM-5) has changed the way practitioners diagnose. Asperger Syndrome and PDD-NOS are no longer separate diagnosis. Going forward, everyone who meets criteria for autism will be given one of 3 severity levels. If you already have a diagnosis of PDD-NOS or Asperger Syndrome, there is no need to change your diagnosis to anything else. This change affects only people receiving the diagnosis after May 2013. We are leaving this page on our website because so many people already have this diagnosis, and the terms are still in use.
  • Asperger Syndrome is a form of autism in which the individual has or had no language delay and an IQ in the average to high range, but has social and communication challenges. It was named for the Austrian pediatrician, Hans Asperger.
  • Dr. Asperger called children with AS “little professors” because of their ability to talk about their favorite subject in great detail. Common symptoms of Asperger Syndrome include social problems, vulnerability to sensory overload, clumsiness, and a tendency to take many figures of speech literally.
  • Many adults who were very bright children but never quite “fit in” socially; realize later in life that they may have Asperger Syndrome.

PDD-NOS (Pervasive Developmental Delay-Not Otherwise Specified) is a diagnosis also on the autism spectrum. Typically, children who display some of the characteristics of autism or Asperger Syndrome but don’t meet all the criteria are diagnosed with PDD-NOS. Sometimes very young children who are identified with having PDD-NOS are diagnosed with autism or Asperger Syndrome when they get older.


We have many books and DVDs on the subject of Asperger Syndrome available for checkout in our Lending Library.

Disclaimer: Please note this information is not a substitute for a full-scale diagnostic assessment.

Contact Us if you need more information about Autism including where in this area to go for an assessment.

Click Here to see a directory listing of Diagnosis/Assessment Professionals in our Resource Directory.