The diagnostic criteria for mental disorders are determined by committees of experts from diverse disciplines, including clinicians, researchers, and educators. These committees are convened by recognized organizations in the field of mental health, such as the American Psychiatric Association (APA) and the World Health Organization (WHO). The DSM-5 (Diagnostic and Statistical Manual of Mental Disorders) and the ICD-11 (International Classification of Diseases) list diagnoses according to criteria specified by experts. Regular revisions and updates are based on ongoing scientific research and the consensus of professionals in the field. Additionally, these organizations take into account societal and cultural perspectives while crafting diagnostic criteria for mental disorders.