CJR-X

Hospital episode spending explorer

Compare the hospitals in Medicare's CJR-X joint replacement model on what Medicare spends around a hospital stay, where those dollars go after discharge, how joint replacement volume has moved from inpatient to outpatient, and hip and knee complication rates. Every number comes from public CMS files.

Pick hospitals to compare

Search for one or more of the 2,000+ hospitals CMS lists for the CJR-X model. After you add one, you can add the other CJR-X hospitals in its metro area in a single click.

About the data

This tool covers the hospitals on CMS's CJR-X participant list. CJR-X, the Comprehensive Care for Joint Replacement Expanded model, begins January 1, 2028 and holds hospitals accountable for Medicare spending from a hip, knee or ankle replacement through 90 days after discharge.

  • This is not a CJR-X target price. CMS publishes no 90-day joint replacement episodes for the public. The spending breakdown is CMS's Medicare Spending per Beneficiary episode: every inpatient admission, 3 days before through 30 days after discharge. It shows where a hospital's post-acute dollars go, which is where CJR-X performance is largely decided.
  • Spending is price-standardized: CMS removes geographic wage adjustment and teaching and safety-net add-on payments so hospitals can be compared on use of services. Actual payments to teaching hospitals are higher.
  • Joint replacement volume comes from Medicare utilization files: MS-DRGs 469, 470, 521 and 522 for inpatient stays, and comprehensive APC 5115 for outpatient procedures. APC 5115 is mostly hip and knee replacement but includes other level 5 musculoskeletal procedures. When a hospital has absorbed another campus, the retired campus's history is folded into the surviving hospital, and the absorbed name is searchable.
  • Small counts are hidden. CMS does not publish any category with fewer than 11 cases. A count marked “plus categories under 11” is a floor, and when hidden categories could move the outpatient share by more than 10 points, the site shows the possible range instead of a single figure.
  • Medicare fee-for-service only. Medicare Advantage, commercial and Medicaid patients are not included.
  • Hospital averages, not patients. Public files stop at the hospital level.

Sources: CMS Care Compare (Medicare Hospital Spending by Claim; Medicare Spending Per Beneficiary; Complications and Deaths), CMS Medicare Inpatient and Outpatient Hospitals by Provider and Service, CMS Provider of Services file, CMS CJR-X participant list.