Autism redefined: Yale researchers study impact of proposed diagnostic criteria

Getting an autism diagnosis could be more difficult in 2013 when a revised diagnostic definition goes into effect. The proposed changes may affect the proportion of individuals who qualify for a diagnosis of autism spectrum disorder, according to preliminary data presented by Yale School of Medicine researchers at a meeting of the Icelandic Medical Association.
The proposed changes to the diagnostic definition would be published in the fifth edition of the American Psychiatric Association