McGuire T E
Health Policy. 1991 Mar;17(2):97-119. doi: 10.1016/0168-8510(91)90048-3.
The history, up to 1990, of operational DRG systems in the United States is described from the viewpoint of changes to the patient classification system. Uses of DRGs, the DRG assignment process and the clinical verification steps are also described. The DRG classification process has become more precise over the last decade in both detail and structure. The annual revision process used in the U.S. is outlined with a detailed summary of historical changes. Recent improvements to DRGs have been directed towards a higher degree of precision as regards patient severity and related resource intensity. Recent research into modifying DRGs to better account for complexity or severity is presented with some scenarios for future developments.
本文从患者分类系统的变化角度描述了美国截至1990年的DRG（诊断相关分组）运行系统历史。还介绍了DRG的用途、DRG分组过程以及临床验证步骤。在过去十年中，DRG分类过程在细节和结构上都变得更加精确。概述了美国使用的年度修订过程，并详细总结了历史变化。DRG的近期改进旨在提高对患者严重程度和相关资源强度的精确程度。介绍了近期为更好地考虑复杂性或严重程度而对DRG进行修改的研究，并给出了一些未来发展的设想。
