Apparently normal development for at least the first 2 years after birth
as manifested by the presence of age- appropriate verbal and nonverbal
communication, social relationships, play, and adaptive behavior.
Clinically significant loss of previously acquired skills (before age 10 years)
in at least two of the following areas:
(1) expressive or receptive language
(2) social skills or adaptive behavior
(3) bowel or bladder control
(5) motor skills
C. Abnormalities of functioning in at least two of the following areas:
(1) Qualitative impairment in social interaction
(e.g., impairment in nonverbal behaviors, failure to develop peer
relationships, lack of social or emotional reciprocity)
(2) qualitative impairments in communication (e.g. delay or lack of spoken
language, inability to initiate or sustain a conversation, stereotyped and
repetitive use of language, lack of varied make-believe play).
(3) restricted, repetitive, and stereotyped patterns of behavior, interests, and
activities, including motor stereotypes and mannerisms.
The disturbance is not better accounted for by another specific
Pervasive Developmental Disorder or by Schizophrenia.
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