分类是根据事物的某种外部特征或内在特征将事物进行分组,排列和组合,是统计、分析的前期工作,是客观地认识事物发展规律,研究事物本质的一种行之有效的手段。医院的疾病分类是根据疾病的病因、病理、临床表现和解剖部位等特性,将疾病分门别类归纳,使其成为一个有序的组合体。因 Classification is based on some external characteristics or intrinsic characteristics of things to be grouped, arranged and combined. It is the preparatory work of statistics and analysis. It is an effective means to objectively understand the laws of development and study the nature of things. The disease classification of a hospital is based on the etiology, pathology, clinical manifestations, and anatomical features of the disease, and classifies the disease into categories, making it an ordered assembly. because