Entwicklung eines artikelkonkreten Benchmarkings des Arzneimittelverbrauchs : PREMAX DRG PREMAX DRG is a benchmark system for pharmaceuticals to analyze the oeconomic impact of medical treatment. On product level is analyzed which products are relevant for cost differences to other hospitals. Split costs are analysed separately. The pharmaceutical intensity was determined per division and used for grouping the benchmark groups. Benchmarks based on groups with similar pharmaceutical intensitiy are reliable. The benchmark system is used in german hospitals to analyze the economic efficiency of pharmaceuticals. Benchmark Krankenhaus Arzneimittel Diagnosis related groups Konzept Kostenanalyse Case Mix Index CMI Arzneimittel Splittkosten CMI pharmaceuticals split costs