in the DSM-lll, this represented a category of pervasive developmental disorders. In the DSM-IV-TR these are labeled pervasive development disorders not otherwise specified.

ATYPICAL PERVASIVE: "An atypical pervasive developmental disorder is one in which the symptoms present do not fit with the diagnostic guidelines, and must be given a not otherwise specified label."
Cite this page: N., Pam M.S., "ATYPICAL PERVASIVE," in, April 7, 2013, (accessed January 21, 2021).