The DSM-5 autism diagnosis is used by professionals to diagnose Autism Spectrum Disorder (ASD). DSM-5 stands for the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition. It provides official criteria that doctors and psychologists use to identify autism.

According to the autism diagnosis criteria DSM-5, a child must show differences in two main areas: social communication and restricted or repetitive behaviors. Social communication differences may include difficulty with conversation, limited eye contact, difficulty understanding social cues, and challenges in developing relationships. Restricted or repetitive behaviors may include repetitive movements, strict routines, intense interests, and sensory sensitivities such as sensitivity to sound, light, or touch.

The DSM autism criteria also consider how early these signs appear and how they affect daily life, such as school, communication, behavior, and social interaction. The diagnosis is usually made by a qualified professional such as a psychologist, developmental pediatrician, or psychiatrist.