With over a million copies in print, the manual is known as the bible of American psychiatry; certainly it is an invoked chapter and verse in schools, prisons, courts, and by mental-health professionals around the world. The addition of even one new diagnostic code has serious practical consequences.
该书的总印数超过了100万册，被看作美国精神病学的圣经；当然它的章节和片断还在学校、监狱、法庭以及被世界各地的精神健康专业人士引用。哪怕每增加一条新的诊断规则都会产生严重的实际后果。那么，是什么原因使得该书在1980年新增加了这么多的规则呢？