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What’s going on with the new PTSD diagnosis in DSM 5?

There seems to be movement, but not much change, in the diagnosis of PTSD in DSM 5. PTSD is no longer a fear or anxiety disorder, but has its own category. In part, this seems to be the result of the popularity of PTSD. The APA justifies this stand-alone category partly in terms of the presence of PTSD “at the center of public as well as professional discussion.” (

In reality, PTSD was created as a result of popular pressure, and it was expanded for the same reason. That is not necessarily a bad thing.
Intriguing is the movement of PTSD toward the category of a dissociative disorder.

The move has not yet been completed, but as Matthew Friedman points out, locating trauma and stress related disorders next to dissociative disorders in the “DSM metastructure” is no accident. The thinking of many seems to be that in the future they will be more closely related. This may be an attempt to come to terms with Chronic-PTSD, or DESNOS (disorders of extreme stress not otherwise specified), championed by Judith Herman, Bessel van Kolk, and others. As Friedman (2013, p. 524) puts it, “I recall overhearing a comment after my . . . presentation in 2011 on DSM-5, that the PTSD criteria were becoming more “DESNOS-ish.”

I’m going to assume that readers are familiar with the major changes in the diagnostic criteria for PTSD in DSM 5, and write more generally about the problem of thinking about trauma in terms of diagnostic criteria. Many diseases have similar symptoms, such as fever, swollen lymph nodes, low blood count, etc., but very different causes. It would be far better, and not just for PTSD, for the DSM to devote less time and attention to parsing symptoms, and instead looking for causes. But apparently the science is not up to the task. In effect, ever since the introduction of PTSD in DSM III in 1980, PTSD has been defined by the traumatic event that precedes it.

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