Medically reviewed by Jonathan B. Jassey, DO "High-functioning autism" (HFA) is a term used to describe people with a certain level of autism spectrum disorder (ASD). They have milder symptoms and ...

Medically reviewed by Kira Graves, PhD Mild autism is the least severe level of autism. It is an unofficial term used to describe the diagnosis of level 1 autism spectrum disorder (ASD), or simply ...

Dr. Greg Vigna, MD, JD, national birth injury lawyer, states, “We are evaluating children who had a diagnosis of autism spectrum disorder Level 2 and Level 3.