Modern economic trends in the world show an increase in the number of enterprises engaged in services. The provision of any services on a commercial basis, including medical, involves the use of billing systems. Significant growth of this sector of the economy determines a significant increase in the role of billing in the management of enterprises, in one way or another related to this area of activity. The introduction and use of a billing system require modern approaches and technologies. Under conditions of severe competition and crisis phenomena in the economy the issues of efficiency and degree of integration of various information systems, as well as the use of advanced…