• M Grotz, T Schwermann, R Lefering, S Ruchholtz, J M Graf v d Schulenburg, C Krettek, and H C Pape.
• Unfallchirurgische Klinik, MHH, Hannover. pape.hans-christoph@mh-hannover.de
• Unfallchirurg. 2004 Jan 1;107(1):68-75.

UnlabelledThe introduction of diagnosis related groups (DRG) will radically change the payment system for German hospitals. In 2002 the values for most DRG's were published for the german system (G-DRG). The polytrauma working group of the German Trauma Society developed a calculating algorithm to estimate the comprehensive hospital costs for every patient in the German trauma registry. The aim of this study was to compare these costs with the reimbursement according the the G-DRG's for a standardized population of polytrauma patients.Material And MethodsFor polytrauma patients treated at Hannover Medical School in 2000 and 2001 the reimbursement according to the G-DRG's was calculated using a base value of 2900 euro. In the same patients the total cost of inpatient treatment was calculated according to the algorithm developed by the polytrauma working group of the German Trauma Society. The difference between these values represents the economic result. This was calculated as an overall result, but also for specific subgroups of patients (injury severity, mortality, G-DRG grouping).ResultsDatasets of 103 polytrauma patients were included. The following G-DRG's were most frequently occuring: A06Z (n=41), A07Z (n=16), W01Z (n=13). All other G-DRG's were documented less than 3 times. The mean reimbursement according to the G-DRG was 21.380+/-12.300 euro for a polytrauma patient. However, the mean hospital cost accounted to 34.274+/-22.501 euro, which resulted in a mean deficit of 12.893+/-15.534 euro. Analysis of subgroups revealed, that an ISS of more than 35 points, patients with a prolonged hospital stay and patients of the G-DRG group A06Z show a particularly negative result.ConclusionThe comprehensive hospital costs for treating polytrauma patients are on average 12.893 euro higher than the reimbursement according the G-DRG's. For hospitals to be fully reimbursed G-DRG values have to be reconfigured according to the German health care system. Thus, inclusion criteria to specific G-DRG have to be changed and a specific G-DRG group for very severely injured patients needs to be established.

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