Psychotherapy High Wycombe Psychotherapy High Wycombe - Last updated 31 October 2025

DSM Reference Home

DSM-IV and DSM-IV-TR:

Pervasive Developmental Disorders (PDD)

Severe impairment pervades broad areas of social and psychological development in children with these mental disorders.

These include the following specific disorders:

Asperger's Disorder | Autistic Disorder | Childhood Disintegrative Disorder | Rett's Disorder

Diagnostic & Statistical Manual of Mental Disorders, 4th edition. Washington, DC, APA, 1994

Also: autism

The online Diagnostic & Statistical Manual of Mental Disorders lists most of the major psychological disorders and illnesses and lists the criteria that must be fulfilled in order for a diagnosis to be made. This resource is not a substitute for proper professional psychiatric diagnosis.