High Yield Review of DSM-5 Dissociative Disorders


Dissociative Disorders are underdiagnosed, undertreated, and widely misunderstood among mental health professionals. Dissociative disorders are more common than either schizophrenia or bipolar disorder even by conservative estimates, yet individuals suffering from these disorders are typically in the mental health system for years before receiving the proper diagnosis. The presentation of these individuals typically includes an array of dissociative symptoms that are identifiable through proper assessment but easily overlooked by the untrained eye. As a result, individuals with dissociative disorders are often diagnosed only with more easily recognized but clinically secondary co-morbid disorders, while their primary dissociative condition remains untreated. This presentation will review the epidemiology, common presentations and differential diagnosis of DSM-5 dissociative disorders, as well as the role of trauma history in their etiology.

This session was originally presented as a live conference session in March 2019.

Target Audience


Learning Objectives

At the conclusion of this session participants will be able to:

  • State the two main diagnostic criteria for DID.
  • List three disorders commonly co-morbid with DID/ OSDD.
  • Describe three symptoms common in complex dissociative disorders that are often taken to be indicators of a different type of disorder (psychotic, affective, substance, or personality).
Course summary
Available credit: 
  • 1.50 ISSTD Certificate Program
    This program is eligible for 1.50 credits in the ISSTD Certificate Program.
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Presenter: Garrett Deckel
Presenter Bio: Dr. Garrett Deckel is Clinical Assistant Professor of Psychiatry at the Icahn School of Medicine in New York, NY and is in private practice in New York, NY and White Plains, NY. Dr. Deckel supervises and teaches psychiatric residents on topics related to PTSD, dissociative disorders, and psychodynamic psychotherapy. She has been working with DID patients for 10 years and is particularly interested in increasing awareness and understanding of dissociative disorders among M.D.s. She is a former co-moderator of ISSTD's Virtual Book Club. Prior to entering medicine, Dr. Deckel earned a Ph.D. in Philosophy specializing in Philosophy of Mind and Ethics.

Available Credit

  • 1.50 ISSTD Certificate Program
    This program is eligible for 1.50 credits in the ISSTD Certificate Program.


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"Your Price" above reflects your final price based on your membership status and career level. 

  • ISSTD defines a student as those enrolled in a program of study leading to a degree or certification in the mental health field and who have an interest in trauma and dissociation. 
  • ISSTD defines an emerging professional as mental health professionals who have completed an advanced degree and are in the first three years of their career (or first three years after graduation for researchers).
  • If you do not fall into one of the above categories please register as Professional/Retired. 

These prices are for Tier I countries. For a list of countries by Tier click here. If you are located in a country that falls into Tier II-VI please contact ISSTD at cfas@isst-d.org to receive the appropriate discount code.