Childhood Disintegrative Disorder (CDD)
(*Please note Autism Spectrum Disorder now is a single category in DSM-V that encompasses, Autistic Disorder, Asperger’s Disorder, Childhood Disintegrative Disorder and PDD-NOS).
Characterized by normal development for at least the first 2 years after birth then clinically significant loss of previously acquired skills (before age 10 years) and abnormal functioning in social interaction, communication, and restricted repetitive and stereotyped patterns of behavior, interests, and activities.