What's the difference between PDD and asperger?

I was recently diagnosed, and I'm told I have PDD-NOS. Could someone tell me what's the difference between PDD and asperger?What's the difference between PDD and asperger?
Aspergers is essentially a mild autism or very high functioning autism. PDD-NOS is a catchall which is supposed to mean that they have some Autistic symptoms but not enough to qualify as Autism or Aspergers.



The problem with PDD-NOS is that there is not precise criteria, however it's characterized by impairments in social ability.



The problem with a PDD-NOS is that it is very vague and there are many other disorders or combinations of other disorders that would appears similar (such as ADHD and/or OCD). Personally I think there are groups of people with PDD-NOS that have a essentially a very mild Autism and other's who are very severe ADHD.



Psychology is an ever evolving science and guidelines, criteria %26amp; disorders change. Example: terms ADD is now just ADHD. Also Aspergers diagnosis will be merged into Autism under new DSM-V criteria.What's the difference between PDD and asperger?
Asperger's syndrome and PDD-NOS are both on the autism spectrum. They are different subtypes of Pervasive Developmental Disorders.



PDD-NOS stands for Pervasive Development Disorder - Not Otherwise Specified. A diagnosis of PDD-NOS means that the person didn't neatly fit into the other categories (such as Asperger's syndrome) but may have another mild form of autism.



"Pervasive Developmental Disorder is a general category used to describe a pattern of behavioral differences (which may include deviations, excesses, or difficulties) in the areas of social relating, communication, and attention/interest. Children who demonstrate a number of characteristics or symptoms in these three areas, and whose problems are not better explained by other disorders, may receive a diagnosis of PDD. This diagnosis may also be applied if the child exhibits a variety of symptoms associated with Autism, but in an unusual pattern."