Diagnostic Criteria for 299.00: AD

  • A total of six (or more) items from (1), (2), and (3), with at least two from (1), and one each from (2) and (3):

    1. )qualitative impairment in social interaction, as manifested by at least two of the following:

      1. ) marked impairment in the use of multiple nonverbal behaviors such as eye-to-eye gaze, facial expression, body postures, and gestures to regulate social interaction

      2. ) failure to develop peer relationships appropriate to developmental level

      3. ) a lack of spontaneous seeking to share enjoyment, interests, or achievements with other people (eg, by a lack of showing, bringing, or pointing out objects of interest)

      4. ) lack of social or emotional reciprocity

    2. ) qualitative impairments in communication as manifested by at least one of the following:

      1. ) delay in, or total lack of, the development of spoken language (not accompanied by an attempt to compensate through alternative modes of communication such as gesture or mime)

      2. ) in individuals with adequate speech, marked impairment in the ability to initiate or sustain a conversation with others

      3. ) stereotyped and repetitive use of language or idiosyncratic language

      4. ) lack of varied, spontaneous make-believe play or social imitative play appropriate to developmental level

    3. ) restricted repetitive and stereotyped patterns of behavior, interests, and activities, as manifested by at least one of the following:

      1. ) encompassing preoccupation with one or more stereotyped and restricted patterns of interest that is abnormal either in intensity or focus

      2. ) apparently inflexible adherence to specific, nonfunctional routines or rituals

      3. ) stereotyped and repetitive motor mannerisms (eg, hand or finger flapping or twisting, or complex whole-body movements)

      4. ) persistent preoccupation with parts of objects

  • Delays or abnormal functioning in at least one of the following areas, with onset before 3 years old: (1) social interaction, (2) language as used in social communication, or (3) symbolic or imaginative play.

  • The disturbance is not better accounted for by Rett's Disorder or childhood disintegrative disorder.

    • Reprinted with permission from American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR). Washington, DC: American Psychiatric Publishing; 2000:75.