CMS floats nationwide CJR‑X payment model

The federal government wants one hospital bill to cover the whole joint-replacement journey, not just the day of surgery. On April 10, 2026, the Centers for Medicare and Medicaid Services proposed a model called Comprehensive Care for Joint Replacement Expanded that would make most hospitals nationwide responsible for Medicare spending tied to hip, knee, and ankle replacements plus the next 90 days of recovery. (cms.gov) That means the hospital would not be judged only on the operating room. It would also be on the hook for what happens after discharge, including physical therapy, follow-up care, avoidable rehospitalizations, and emergency visits during that 90-day window. (cms.gov) This is a proposed rule, not a live program yet. The agency said the model would start on October 1, 2027, and the broader hospital payment rule carrying it is scheduled for Federal Register publication on April 14, 2026. (cms.gov) (federalregister.gov) The basic idea is called episode-based payment. Instead of Medicare paying each doctor visit, rehab session, and readmission as separate pieces, Medicare sets up one accountability period around a single procedure and asks whether the whole episode was handled efficiently. (cms.gov) Joint replacement is where Medicare has already tested this. The original Comprehensive Care for Joint Replacement model ran from April 1, 2016, through December 31, 2024, and held hospitals responsible for spending on the surgery, the hospital stay, and the first 90 days after discharge. (cms.gov) The government says that earlier test saved money without cutting measured quality. In a December 3, 2025 evaluation update, the Centers for Medicare and Medicaid Services said the model saved Medicare $112.7 million across 2021 through 2023 while covering more than 98,000 knee and hip replacement patients at 323 hospitals. (cms.gov) Those savings mostly came from what happens after patients leave the hospital. The agency said post-acute care spending fell while claims-based quality measures such as complications, mortality, unplanned readmissions, and emergency department use were maintained. (cms.gov) This new proposal is also bigger than another Medicare experiment already underway. The Transforming Episode Accountability Model, which began January 1, 2026, is mandatory only for selected hospitals in selected metro areas and follows patients for 30 days after hospitalization across five kinds of surgery, including lower-extremity joint replacement. (cms.gov) Comprehensive Care for Joint Replacement Expanded goes longer and wider. It would be mandatory nationwide, include inpatient and outpatient hospital settings, and keep the recovery clock running for 90 days instead of 30. (cms.gov 1) (cms.gov 2) For hospitals, that changes the math from “Did we bill correctly?” to “Did the whole recovery stay on track?” A patient who lands back in the hospital three weeks later or needs avoidable emergency care can turn a profitable surgery into a money-losing episode under this kind of model. (cms.gov) For data teams, the hard part is attribution. If payment depends on one 90-day bundle, hospitals need reproducible logic that ties surgeons, facilities, post-acute providers, and downstream claims back to the same episode every time, or the financial results will be impossible to trust. (cms.gov 1) (cms.gov 2) The immediate next step is public comment, because this is still inside the fiscal year 2027 hospital payment proposal. If the rule is finalized, Medicare will be turning one of its most-tested bundled-payment ideas into the first mandatory nationwide episode-based payment model for hospitals. (federalregister.gov) (cms.gov)