In cases of complex trauma, the guideline becomes more specific. Grade of recommendation B, also new in 2026: “For complex PTSD according to ICD-11, psychotherapeutic treatment should be carried out with a combination of trauma-focused techniques that emphasize processing the memory of the traumatic experiences and/or their meaning, as well as techniques for emotion regulation, and for improving self-esteem and relationship disturbances, in the sense of working on dysfunctional interpersonal patterns.”
What is recommended is not a school of therapy but a combination. The work on the memory itself is named first, and it remains the core. Alongside it are emotion regulation, self-esteem, and recurring patterns in relationships, and this is the foundation of depth psychology-based psychotherapy. Those who come with these issues are less often looking for quick relief from symptoms than for an answer to why certain patterns repeat themselves in every new relationship.
The consequences of trauma rarely occur in isolation. The guideline provides statistics: About 80 percent of people with PTSD meet the criteria for at least one additional mental disorder at some point in their lives, and two-thirds even meet the criteria for two or more. The most common are mood disorders, anxiety disorders, physical symptoms without sufficient organic findings, and substance-use disorders. This is no reason to wait. In cases of additional mental illnesses, the guideline recommends trauma-focused therapy with its strongest grade of recommendation. Trauma-focused treatment should also be used in cases of suicidality, self-harm, or substance use, as long as there are no severe disorders of behavioral control. This point is based on expert consensus rather than on studies. Another condition is given priority only if it prevents a person from benefiting from trauma treatment at all, for example in cases of severe depression.
This is exactly where the work discussed on this page begins. The guideline calls for a comprehensive treatment plan at this very point. Four diagnoses listed side by side do not yet constitute one. From a psychodynamic perspective, what matters is what connects the diagnoses. How many labels a person has is less important. What matters is not so much the syndrome as the etiology, that is, the cause. Too many diagnoses listed side by side can obscure the cause and narrow the treatment down to just one aspect.