Yes.
AS = Asperger's Syndrome.
Which is the name for it internationally/in the ICD.
Though some weird studies that take the DSM-IV-TR into consideration use abbreviations such as:
AD = Asperger's Disorder (easily confused with the more common AD = Autistic Disorder)
or ASD = Asperger's Disorder (easily confused with the more common ASD = autism spectrum disorder)
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Autism + ADHD
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The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it. Terry Pratchett