The method of group economic standards of health care was developed in the 70s of the last century at Yale University and introduced in the United States in 1983 as a basic basis for payment for medical services in the system "Medicare". 467 clinical and statistical groups became the initial medical and economic base. The criteria for their selection were: homogeneity of diseases and homogeneity of medical and diagnostic procedures; homogeneity of volumes and structure of resources used at treatment.
