Today, Asperger's syndrome is technically no longer a diagnosis on its own. It is now part of a broader category called autism spectrum disorder (ASD). This group of related mental health issues shares some symptoms. Even so, lots of people still use the term Asperger's. The condition is what doctors call a "high-functioning" type of ASD.
PDDs are now called autism spectrum disorder. The name change came in 2013, when the American Psychiatric Association reclassified autistic disorder, Asperger’s syndrome, childhood disintegrative disorder, and pervasive developmental disorder not otherwise specified (PDD-NOS) as autism spectrum disorders.