in the DSM-lll and earlier editions, a residual category that included unusual or uncharacteristic variations of the standard mental disorders. The equivalent DSM-IV-TR category is not otherwise specified, which can be added to many disorders.

ATYPICAL DISORDER: "An atypical disorder is one in which the symptoms present do not fit with the diagnostic guidelines."
Cite this page: N., Pam M.S., "ATYPICAL DISORDER," in, April 7, 2013, (accessed September 19, 2021).