摘要目的：将各类医疗机构目前实际开展的诊疗服务项目区分为优先项目、扩展项目和非基本项目。方法根据各级医院诊疗服务项目的实际使用数量，并考虑机构功能定位和疾病临床路径，对诊疗服务项目进行筛选。结果一级、二级和三级医院遴选出的优先项目分别为255、378和820项，其使用频次占诊疗项目总使用频次的比例分别为92.9%、95.9%和97.4%，使用费用占诊疗项目总费用的比例分别为57.9%、76.8%和84.5%。结论筛选出的优先项目覆盖了绝大多数的诊疗项目使用次数和费用，体现了多数人受益的原则，应在各级医院优先开展。

abstractsObjective To divide the medical services currently offered by various medical institutions into priority,extended and non-essential items.Methods The items were divided according to their actual usage at these hospitals,and such services were screened based on hospital positioning and clinical pathway of diseases.Results The selected priority services at the primary,secondary and tertiary hospitals were 255, 378 and 820 respectively.Their proportions in total medical services of these hospitals were 92.9%,95.9% and 97.4% respectively,and the proportion of their costs in total medical service costs were 57.9%,76.8% and 84.5% respectively.Conclusions The selected priority items had covered most of the services and costs,which deserve promotions at all the hospitals as it embodied the principle of benefiting the majority of the population.