Dissociative Disorder Not Otherwise Specified (DDNOS) and Other Specified Dissociative Disorder (OSDD)
Dissociative Disorder Not Otherwise Specified was the most commonly diagnosed Dissociative Disorder in the DSM-IV diagnostic manual. DDNOS is a complex dissociative disorder which includes many different groups of dissociative symptoms. The most common presentations of DDNOS are numbered, for example DDNOS1, DDNOS2, etc. The DSM-5 changed the name of DDNOS to Other Specified Dissociative Disorder (OSDD); DDNOS-1 was renamed to OSDD-1.
DDNOS-1 and Other Specified Dissociative Disorder
DDNOS1 and Dissociative Identity Disorder differences explained and DSM-5 changes to DID.
Information taken from DSM-5 (APA, 2013) and Dissociative Disorders: The DSM-V and beyond (2011).
DDNOS-1 is the most common form of DDNOS, and can be thought of as “partial DID”.  The improved wording of the Dissociative Identity Disorder criteria in the DSM-5 will help those incorrectly diagnosed as DDNOS, for instance because of not obviously switching to an alter identity in front of the psychiatrist, be correctly classed as Dissociative Identity Disorder. [1, 2]
- Dell, P. F., & O’Neil, J. A. (Eds.). (2010).Dissociation and the dissociative disorders: DSM-V and beyond. Routledge. ISBN 1135906033.
- American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders: DSM-5. (5th ed.). Washington, D.C.: American Psychiatric Association. ISBN 0890425574.
- Dissociative Disorder Not Otherwise Specified (OSDD) information from traumadissociation.com
- The importance of asking for help (traumadissociation.wordpress.com)
- What is Dissociative Identity Disorder? (traumadissociation.wordpress.com)
- Using visualization for stabilization and safety in Dissociative Identity Disorder and OSDD (traumadissociation.wordpress.com)
- Thought for the day (stoningdemons.wordpress.com)
- Do dissociative trauma survivors actually lose time? (discussingdissociation.com)