根據美國精神醫學學會出版的『精神疾患診斷及統計手冊』(Diagnostic and Statistical Manual of Mental Disorders，簡稱DSM，目前出版至第五版)，在第四版將人格障礙症在精神科診斷五軸中，被置於第二軸的診斷描述。但在第五版中，多軸系統已被捨棄，人格障礙症被同列在精神疾病之下。[8]
^4.04.14.2Gerrig, Richard J.; Zimbardo, Philip G. 心理学与生活：第19版. 由王垒 等翻译. 北京: 人民邮电出版社. 2014.11: 482–486.ISBN 978-7-115-37177-5.请检查|date=中的日期值 (帮助)
^世界卫生组织.用于死因与疾病统计的ICD-11（06 精神、行为或神经发育障碍—人格障碍及相关人格特质）.国际疾病分类第十一次修订本. 2024-01 [2024-03-25]. （原始内容存档于2024-05-15）（英语）.Personality Disorder is a marked disturbance in personality functioning, which is nearly always associated with considerable personal and social disruption. The central manifestations of Personality Disorder are impairments in functioning of aspects of the self (e.g., identity, self-worth, capacity for self-direction) and/or problems in interpersonal functioning (e.g., developing and maintaining close and mutually satisfying relationships, understanding others’ perspectives, managing conflict in relationships).
