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Childhood Disintegrative Disorder

In Childhood Disintegrative Disorder, there is an apparently normal cognitive and social development of the child up to age 2 years, including the development of age-appropriate verbal and nonverbal communication skills, social relationships, play activities and adaptive behaviors.

However, before the age of 10 years there occurs a significant loss of acquired skills in at least 2 of the following areas:

  • Language (speaking or understanding)
  • Social skills or adaptive behaviors
  • Bowel or bladder control
  • Play
  • Motor skills

Abnormalities also become evident in at least 2 of the following areas:

  • Impairments in social interactions
    • impaired nonverbal communication
    • failure to develop age-appropriate peer relationships
    • lack of social or emotional reciprocity
  • Impairments in communication
    • delay or lack of spoken language
    • inability to initiate or sustain a conversation
    • speaking in ways that are odd, stereotyped, and repetitive.
    • lack of age-appropriate make-believe play.
  • Restricted repetitive and stereotyped behaviors, interests and activities
    • includes stereotyped and repetitive movements and gestures

The diagnosis of this condition should not be made if the individual's condition can be better explained by another Autism Spectrum Disorder or Schizophrenia.


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Rett's Disorder