Abstract
This article reviewed the connotation,developing process and utilization theory of diagnosis related groups (DRGs).DRGs,which is one of ease mix systems,is now used widely in healthcare management.DRGs classify inpatient based on diagnose and procedure.Practices have shown that it has relative high capacity for the risk adjustment of acute care cases; therefore,it can improve the efficiency of expenditure and performance management of inpatient services.Currently,there are more than 30 countries and regions using DRGs,and the theories and methodologies of DRGs get mature.China's new round healthcare reform have developed in depth.The study and development of DRGs related health management tool will promote China' s healthcare system becoming more scientific,normalized and systematic. Key words: Diagnosis related groups; Risk adjustment; Utilization; Expenditure management; Performance management
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