
Defining and Implementing Medical Necessity in Washington State and Oregon
Published in: Inquiry, v. 34, no. 2, Summer 1997, p. 143-154
Posted on RAND.org on January 01, 1997
This paper reports on a qualitative study of how health care providers in the states of Washington and Oregon define and implement medical necessity. Based on a series of semi-structured interviews, the authors found that few insurers or health care plans in the sample attempted to resolve the ambiguities inherent in defining medical necessity. More importantly, the results of this study suggest that physicians in managed care plans were not using general definitions of medical necessity to make clinical decisions, but instead relied on utilization management techniques to guide the use of medical resources. The authors conclude that medical necessity as an organizing principle for clinical practice decision-making is likely to continue to erode in a managed care environment.
This report is part of the RAND Corporation External publication series. Many RAND studies are published in peer-reviewed scholarly journals, as chapters in commercial books, or as documents published by other organizations.
The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.