双相情感障碍（Bipolar Disorder，BD）被称为F31是因为它在《精神障碍诊断与统计手册》（DSM-5）中被归类为F31.0，DSM-5是国际上广泛使用的诊断分类标准，F31.0代表双相情感障碍，双相情感障碍是一种复杂的心理健康障碍， characterized by extreme emotional swings between mania and depression, along with significant changes in behavior and thought patterns. It is divided into two subtypes: manic depressive disorder (F31.0) and躁郁症 (F31.1). The "F31" code reflects its classification in the DSM-5, which organizes mental disorders based on their diagnostic criteria and clinical features. 阅读全部