• M Schargus, P Gass, A Neubauer, and M Kotas.
• Universitäts-Augenklinik, Ruhr-Universität Bochum, In der Schornau 23-25, 44892, Bochum, Deutschland, marc.schargus@gmx.de.
• Ophthalmologe. 2014 Apr 1;111(4):354-64.

BackgroundIn 2003 the German diagnosis-related groups (G-DRG) were introduced for reimbursement of inpatient treatment. The aim of this study was to analyze the development of G-DRGs in ophthalmology in Germany (MDC02) from 2004 to 2012 by means of data from the Institute for the Reimbursement System in Hospitals (InEK).MethodsThe data regarding costs, cost weighting and mean length of stay (LOS) from the G-DRG reports of the InEK from 2004 to 2012 in 9 representative surgical and non-surgical ophthalmological treatment case groups were analyzed. Differences in the coding system as well as alterations between the G-DRGs over the course of time were taken into consideration. The cost weightings were calculated taking the year 2004 as the baseline and are presented in the form of graphs.ResultsThe selected cases cover 54% of all G-DRG cases used by the InEK for G-DRG calculations. For 6 out of the 9 case groups there was a cost/reimbursement reduction by nearly one third of the calculated costs by InEK from 2004 to 2012. Only one case group showed an increase in costs by 23% which can be explained by alterations in graft costs in this case group. The mean LOS decreased over the time period in the 9 groups investigated by up to 40% and on average by -22.3%.ConclusionsThe annually calculated costs of the InEK directly influence the calculation of the cost weightings and reimbursement and are therefore important for every hospital. During the time period analyzed a high reduction in costs and LOS in the majority of the analyzed case groups were found.

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