What is the DSM and how does it relate to PTSD?
The Diagnostic and Statistical Manual of Mental Disorders is published by the American Psychiatric Association. DSM-5-TR includes PTSD, but it does not list complex PTSD as a separate diagnosis. The World Health Organization’s ICD-11 does.
These systems organize trauma-related difficulties differently. The absence of a separate DSM diagnosis does not mean that a person’s symptoms are unimportant or that PTSD treatment is unavailable.

What is Complex PTSD?
In ICD-11, complex PTSD includes PTSD symptoms together with persistent difficulties involving emotion regulation, self-concept and relationships. It is not simply a synonym for any prolonged trauma history. Assessment considers the pattern of symptoms and their effect on daily life.
Why the Diagnostic Systems Differ
It is more accurate to describe the systems’ different diagnostic choices than to give one unsupported reason for exclusion. This article does not establish that an overlap percentage or the age of a concept determined a DSM committee’s decision. DSM-IV did not create an official complex-PTSD subtype.
Complex PTSD in ICD-11 and DSM-5-TR
| System | Complex PTSD |
|---|---|
| DSM-5-TR | Not listed as a separate diagnosis; assessment may use PTSD and other relevant diagnoses. |
| ICD-11 | Includes complex PTSD with its own diagnostic requirements. |
For more detail, see the National Center for PTSD’s comparison. Emotion-regulation, self-concept and relationship difficulties should not be relabeled simply as maladaptive personality traits.

How does the absence of Complex PTSD in the DSM affect Treatment and Diagnosis?
A clinician can address a person’s difficulties even when a particular diagnostic system uses different terminology. Ask which system is being used, what the assessment found and how those findings shape the care plan. The label alone does not determine one required therapy or medication combination.



