For each subsequent year, calculations are made to determine the base rate, DRG group cost weight, and case mix index (CMI) using the current year's 9-month DRG data (bed days and manipulations marked with a single asterisk (*) in the list of manipulations (replaces service actual costs)).  As a result, the payment of one case is made by multiplying the CMI of each medical institution (which is formed from the weights of DRG groups and the number of patients in each group in each medical institution) and the base tariff (the same for all in the country).