To analyze cases in different groups of DRGs mortality risk ranking regarding overall medical dispute cases of the hospital from 2012 to 2017, and to study various groups of such ranking for these disputes as faced by different clinical departments, for the purpose of targeted intervention into medical risk exposures.

Inpatient medical dispute cases in 2012-2017 period were selected, and classified into the various mortality groups by the standards and definition of BJ-DRGs. These data were used to calculate medical dispute incidence in each group, and analyze the difference between internal medicine and surgery departments.

Medical disputes of the hospital were mostly found in case groups of mortality free and those of low mortality risks, accounting for 66% of the total cases. This figure was the highest in surgical departments, having a percentage as high as 72%, and the CMI values of these cases were low as well (0.765 and 1.416 respectively).

As case groups of mortality free and low risks tend to attract disputes, the hospital is recommended to enhance the risk awareness and training of its medical staff and key medical regulations.

Diagnosis-related groups; Mortality risk ranking; Risk reduction behavior; Medical dispute