1 - (SYM 21) ICD-11 Complex PTSD: Evidence and Clinical Utility

In 2019 the World Health Organization (WHO) accepted complex posttraumatic stress disorder (CPTSD) alongside PTSD into the 11^th edition of the International Classification of Diseases (ICD-11). This presentation will provide a brief history of CPTSD, the rationale for the introduction of partnered PTSD and CPTSD diagnoses into the ICD-11and a description of the development of their distinct symptom profiles. Well-established self-report and clinician administered assessment measures will be reviewed as well as their applicability across different languages and cultures. Differential risk factors, prevalence rates, comorbidities and long-term consequences between ICD-11 PTSD and CPTSD will be reviewed. Emerging evidence regarding the clinical utility of having two distinct disorders regarding understanding etiology, environmental impacts, cognitive appraisals, chronicity and treatment will be discussed.