[Economic aspects of intensive care medicine--cost and reimbursement according to diagnosis related grouping].

We analyse relevant modifications of the new German diagnosis related reimbursement system for 2004. It is difficult to judge the consequences of financing intensive care systems by such flat rates. In our surgical ICU total treatment costs were 1 050.-euro /day and 11 530.-euro /patient. Comparison of our total costs and German federal calculation 2003 for long-term ventilation revealed that our costs resulting from a tertiary unit topped the average by 36-60 %. Already the present reimbursement was not cost rewarding. Evaluation according to the 2003 criteria resulted in profound further deterioration to a cost covering of only 49 %. The 2004 system, however, allows for better differentiation of patients and should result in improved reimbursement of long-term ventilation. Further professional analysis of the DRG system is essential for its "learning" development.