Dissociative disorder not otherwise specified

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Dissociative disorder not otherwise specified
Other namesOther dissociative and conversion disorders

Dissociative disorder not otherwise specified (DDNOS) is a mental health diagnosis for pathological dissociation that matches the DSM-5 criteria for a dissociative disorder, but does not fit the full criteria for any of the specifically identified subtypes, which include dissociative identity disorder, dissociative amnesia, and depersonalization/derealization disorder, and the reasons why the previous diagnoses weren't met are specified. "Unspecified dissociative disorder" is given when the clinician doesn't give a reason.[1] The International Statistical Classification of Diseases and Related Health Problems (ICD-10) refers to the diagnosis as "Other dissociative and conversion disorders".[2]

Examples of DDNOS include chronic and recurrent syndromes of mixed dissociative symptoms, identity disturbance due to prolonged and intense coercive persuasion, disorders similar to dissociative identity disorder, acute dissociative reactions to stressful events, and dissociative trance.[1]

DDNOS is the most common dissociative disorder and is diagnosed in 40% of dissociative disorder cases.[3] It is often co-morbid with other mental illnesses such as complex posttraumatic stress disorder, major depressive disorder, generalized anxiety disorder, personality disorders, substance use disorders, and eating disorders.[4]

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  1. ^ a b American Psychiatric Association (2013). DSM-5 (5th, revised ed.). Arlington, VA: American Psychiatric Press. p. 991. ISBN 978-0-89042-554-1.
  2. ^ International Statistical Classification of Diseases and Related Health Problems, 10th Revision (2017). F44.89.
  3. ^ O'Neil; et al. (2008). Dissociation and the dissociative disorders : DSM-V and beyond. London: Routledge. p. 694. ISBN 978-0-415-95785-4.
  4. ^ Brand; et al. (June 2009). "A naturalistic study of dissociative identity disorder and dissociative disorder not otherwise specified patients treated by community clinicians". Psychological Trauma: Theory, Research, Practice, and Policy: 154–55.

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