Childhood disintegrative disorder is a condition in which children develop normally through age 3 or 4. Then, over a few months, they lose language, motor, social, and other skills that they already learned.
Childhood disintegrative disorder is a part of the larger developmental disorder category of autism spectrum disorder.
American Psychiatric Association. Autism spectrum disorder. Diagnostic and Statistical Manual of Mental Disorders. 5th ed. Arlington, VA: American Psychiatric Publishing; 2013:50-59.
Marcdante KJ, Kliegman RM. Autism spectrum disorder and schizophrenia spectrum disorders. In: Marcdante KJ, Kliegman RM, eds. Nelson Essentials of Pediatrics. 8th ed. Philadelphia, PA: Elsevier; 2019:chap 20.
Review Date 4/4/2019
Updated by: Liora C. Adler, MD, Pediatric Emergency Medicine, Joe DiMaggio Children's Hospital, Hollywood, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.