Pervasive Developmental Disorder - Not Otherwise Specified (PDD-NOS)

Pervasive Developmental Disorder-Not Otherwise Specified (PDD-NOS) is a condition on the autism spectrum characterized by difficulties with social interactions, communication challenges, and repetitive behaviors, but not meeting all specific criteria for autism. Individuals with PDD-NOS may have delays or differences in social skills, language, or behavior, which can vary widely. It is often diagnosed when a person shows some but not all traits of autism, making it a flexible diagnosis that helps identify and support those with developmental challenges that fall outside typical categories.