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People with autism spectrum disorder, level 1, may have been diagnosed with pervasive developmental disorder, nos in the past.

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User RunnerRick
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True. In the past, individuals who would now be diagnosed with Autism Spectrum Disorder (ASD) Level 1 may have received a diagnosis of Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS). PDD-NOS was a diagnostic category that encompassed individuals who displayed some symptoms of autism but did not meet the full criteria for a specific autism spectrum disorder. However, with the release of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) in 2013, PDD-NOS was no longer recognized as a separate diagnosis, and individuals falling within that category would now be diagnosed with ASD Level 1.
User Frithjof
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