This article is from the Dissociation FAQ, by Discord (firstname.lastname@example.org) with numerous contributions by others.
Some mental health care workers and psychological researchers disagree
with the definition of dissociative disorders as presented in the
DSM-III-R, as they feel it is an arbitrary definition; they feel that
dissociation is an aspect of many other, similar disorders. Because of
that, it is difficult to list just what is a dissociative disorder.
The DSM-III-R considers the following to be dissociative disorders:
Multiple Personality Disorder (in DSM-IV, dissociative identity disorder)