What is Childhood Disintegrative Disorder (CDD) and Diagnostic Criteria?

What is Childhood Disintegrative Disorder (CDD) and Diagnostic Criteria? Childhood disintegrative disorder (CDD – a.k.a. Heller’s syndrome, disintegrative psychosis, dementia infntilis) is a rare condition with only one case in 100,000 children. One of its main characteristics is the late onset of developmental delays, but some children will suddenly or severely reverse in these areas…