美國精神病學會，於1892年成立，美國最大的精神病學組織，也是世界上最大的精神病學組織，擁有超過13萬研究人員、教育工作者、臨床醫生、研究顧問和學生成員。美國精神醫學學會：是美國精神科醫生的專業組織，在行業內具有全球性的影響力。現有約38000名會員。其齣版刊物包括學術期刊以及小冊子，其中最為人熟悉的就是《精神障礙診斷與統計手冊》（DSM）。

This new edition of the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-5[trademark]), used by clinicians and researchers to diagnose and classify mental disorders, is the product of more than 10-plus years of effort by hundreds of international experts in all aspects of mental health. Their dedication and hard work have yielded an authoritative volume that defines and classifies mental disorders in order to improve diagnoses, treatment, and research. This manual, which creates a common language for clinicians involved in the diagnosis of mental disorders, includes concise and specific criteria intended to facilitate an objective assessment of symptom presentations in a variety of clinical settings - inpatient, outpatient, partial hospital, consultation liaison, clinical, private practice, and primary care. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, is the most comprehensive, current, and critical resource for clinical practice available to today's mental health clinicians and researchers of all orientations. The information contained in the manual is also valuable to other physicians and health professionals, including psychologists, counselors, nurses, and occupational and rehabilitation therapists, as well as social workers and forensic and legal specialists. DSM-5[trademark] is the most definitive resource for the diagnosis and classification of mental disorders.