In order to calculate cost weights Institute for the
Hospital Remuneration System (IneK Institute) collects cost
information from the group of hospitals, which voluntarily
gather cost information at the patient's level. Only those
hospitals which can adjust their cost data to the standards
specified by the IneK in so called Calculation Manual, can
participate in the cost data gathering systems [10]. Additional
effort of hospitals is compensated by additional fee, which
consists of a lump sum and variable amount related to the
number of delivered cases and their data quality. In practice,
rules of costing of other hospitals are very varied.