Ethical Perspectives on Prospective Payment Dramatically rising prices in Medicare program led Congress in 1983 to pass legislation that changed method of reimbursement for Medicare hospital charges from a cost-based retrospective system to a prospective payment system (PPS). Medicare's PPS now pays hospitals a preset price for services to its beneficiaries based on average costs of hospital care for patients in diagnosis-related groups (DRGs). Outliers provide a mechanism for enhanced payments for exceptioanlly costly cases and for those whose care requires more days in hospital. But there are restrictive caps on number of outliers that a hospital can claim and amount that will be added to normal DRG payment for patients who qualify. Other adjustments have been built into DRGs related to case mix, wages, teaching, disproportionate share of indigent patients and status as sole provider in a community. The main thrust, however, is to define a single payment schedule in advance of treatment. The Medicare PPS approach shifts financial risk of treating Medicare patients to hospitals and gives them an incentive to provide care more efficiently. At same time, Congress also mandated that all hospitals seeking Medicare reimbursement contract with a peer review organization (PRO). PROs are responsible for assuring that care provided to Medicare beneficiaries is medically necessary, consistent with professional standards, and provided efficiently and economically. They monitor Medicare admissions to hospitals, review DRG designations, and review outlier cases. PROs help to enforce Medicare's DRG system and to achieve congressional intent of containing program costs. Some Difficulties The introduction of PPS has effected important changes in provision of health care whose ethical implications are worthy of examination. But significant changes are occurring rapidly throughout American health care. Health care costs, though moderating, are still increasing beyond general rates of inflation. Competitive pressures and marketing have increased dramatically. Medical services have been unbundled and typical locus of care has shifted away from hospitals and doctors' offices to nursing homes, shopping malls, and patients' homes. The number of physicians is rising and solo practice has given way to health maintenance organizations, preferred provider schemes, and other new clinical and financial arrangements. The nursing profession is under new pressures. Corporations have become keenly interested in containing health care costs. And more and more Americans are without health insurance protection--some 35 to 37 million. Given this backdrop of large-scale systemic change, it is very difficult to isolate effects of Medicare's new measures. We also lack reliable data on many of issues raised by Medicare's PPS. One of most important issues, for example, is impact of DRGs on general quality of care. But there is no routine systemic collection and analysis of data--on mortality, morbidity, and consumer satisfaction--needed to make a secure evaluation.(1) Some modesty about ethical assessment of so large a social reality is also appropriate. Any appraisal of goodness or badness of DRGs is open to challenge: Good or bad compared to what--bankruptcy of Medicare program, more taxation, further privatization, socialized medicine? Such a definitive comparative evaluation of DRGs cannot be attempted here. Nevertheless, an ethical evaluation of changes wrought by Medicare PPS is important and timely. For Medicare is, in words of a recent statement by American Association of Retired Persons, the flagship of American health care system--where it leads others follow.(2) Concerns about impact of DRGs on operation of flagship will be offered from two ethical perspectives: utilitarian and contractarian. …