Level 3 autism involves drastic symptoms that can ... It typically includes the following types of evaluations: Medical evaluation: A medical history and physical examination are performed to ...

Health providers use a handbook called the Diagnostic and Statistical Manual of Mental Disorders (DSM) to diagnose mental disorders, including autism spectrum disorder (ASD). Until 2013, the DSM-4 ...

Autism appears before age 3 and persists throughout a person’s ... Doctors once thought there were different types of autism or similar developmental disorders. The following terms are no ...