[Diagnosis related groups in psychiatry and psychotherapy--alternatives to DRGs].

Diagnosis related groups (DRGs) will be introduced in Germany in 2003 as a basis for hospital funding in all areas except for psychiatry and psychotherapeutic medicine. The following article provides an overview of the use of alternative casemix-systems in the treatment of patients with mental disorders. Overall, DRGs and alternative systems have proven to be poor predictors of resource consumption due to the high variation in the length of stay and the variable treatment opportunities. Therefore, a DRG-system must include the possibility of coded therapeutic treatments, analogous to the procedures used in surgical DRGs, in order to integrate psychiatry and psychotherapeutic medicine into a DRG-based payment system.