The DSM-5, which is the Diagnostic and Statistical Manual of Mental Disorders for the diagnosis and treatment plan development for many developmental and mental health disorders, notes that there are several subtypes of autism spectrum disorder. Each manifests symptoms of differing severity and might require a specialized diagnostic process for a customized treatment plan. Atypical autism, which is often classified as “Pervasive Developmental Disorder Not Otherwise Specified” (PDD-NOS), was originally [...]