Autism spectrum disorder is a new DSM-5 name that reflects a scientific consensus that four previously separate disorders are actually a single disorder. This single condition has different levels of symptom severity in several domains. Deficits in social communication and social interaction PLUS restricted repetitive behaviors, interests, and activities are required for the diagnosis when using DSM criteria. If the student does not exhibit restrictive repetitive behaviors interests, and activities, a professional using DSM-5 would diagnose social communication disorder.

From MA DESE Eligibility and Assessment Guidelines (Draft)