The numbers of economic appraisals conducted have been increasing during the last ten years in Denmark. This article involves 17 economic appraisals on specific health issues. Most of the studies use the cost-effectiveness approach. Cost appraising has only been conducted in five of the studies, three use the cost-benefit approach, and only one uses the cost-utility approach. Most of the studies have been directed at the policy level and only five have been directed at the clinical decision making level. The success of the individual economic appraisals is being assessed by looking at their ability to change behaviour among the decision makers according to the results obtained and by looking at their ability to enter the decision making process. However, as this article stresses, economic appraisals have also been used to introduce the economic appraisal approach as a way of thinking, as a road to efficiency, within the health services. This has led to the incorporation of economic appraisals into committee work at the National decision making level, the issuing of guidelines to local health authorities including efficiency, and to some acceptance of the efficiency term among health professionals.