To diagnose someone, psychiatrists use the DSM. It contains the diagnosis, the criteria that have to be met for that diagnosis and the code that corresponds to that diagnosis. It gets revised every once in a while to add or change diagnoses and criteria. Aspergers was a diagnosis in a previous version but the Diagnostic and Statistic Manual has been revised; a new version has since been published which does not include Aspergers— only Autism.

Just because the APA put out a new book for psychiatrists to use doesn’t mean lay people will abandon the term Aspergers. So, it’s still used. But it wouldn’t be the actual valid diagnosis assigned to anyone by a clinician today.