The study is the result of the research on the transaction costs of the pricing of health services. Due to the fact that the regulations in terms of pricing include activities that lead to price-setting of a good (health service), costs associated with these activities should be treated as transaction costs. According to the assumptions of classical economics, the price should be set at the intersection of the supply and demand curve under the assumption of full information and rationality of market participants.The primary objective of the study is to identify the transaction costs occurring during the pricing of health services (and relate these cost to the institutional environment and the organization of pricing transaction) and characterize the factors that affect the level of transaction costs - to present the force and direction of the relationship between each of the factors and the level of transaction costs.An additional objective of this study is to link the conclusions about the level of transaction costs to the conclusions regarding the accuracy of the cost-based pricing in health care. The accuracy of the pricing system is related to the degree to which the price structure reflects the actual cost structure of the health services. The institutional approach will add up to the existing research on the importance of cost information for the pricing of health services.The empirical part of the work was carried out based on the analysis of primary and secondary sour...