The Centers for Medicare and Medicaid Services’ (CMS) responses to applications for the Bundled Payment for Care Improvement (BPCI) demonstration program have raised more questions than they answered. While we understand the government’s need to reign in the myriad bundle definitions, the degree to which CMS has gone from “define your own” to non-negotiable specifics raises some significant concerns. CMS has: defined its own episode bundles and exclusions; created required bundle families; calculated regional average prices; and established an outlier methodology.