The Medicare IPPS 40 Years Later: Lessons Learned and What to Do Next.

The 1983 implementation of the Medicare Inpatient Prospective Payment System (IPPS) was successful in controlling Medicare inpatient costs because it was designed as a clinically credible management tool that facilitated real behavior change and performance improvement. The next phase of IPPS should expand the inpatient payment bundle to a hospital episode-of-care performance bundle that explicitly links episode cost and quality. A uniform, comparable, and transparent episode performance bundle that highlights the tradeoffs between episode cost and quality can expand the incentives to control costs and provide hospitals the management information to improve performance.