CMS's FY 2027 Payment Proposal: A Modest Inpatient Bump, a Mandatory Bundled Payment Model, and a Continued Squeeze on the Outpatient Side

CMS issued its proposed FY 2027 IPPS rule on April 10, proposing a net 2.4% increase in inpatient payment rates — reflecting a 3.2% market basket increase reduced by a 0.8 percentage point productivity adjustment. Overall, hospital payments would increase by approximately $1.9 billion. Hospital advocates called it insufficient in the context of rising costs and a growing uninsured population.

Additionally, the headline figure masks a more nuanced picture. CMS proposed a $564 million decrease in disproportionate share and uncompensated care payments, even as the national uninsured rate is projected to rise from 8.7% to 9.1% — a trend that will accelerate as Medicaid cuts under the One Big Beautiful Bill Act take hold. Payments for Medicare-Dependent Hospitals and low-volume hospitals also expire December 31, 2026 unless Congress acts, putting another $400 million at risk.

Furthermore, the rule's most consequential provision may be its expansion of the Comprehensive Care for Joint Replacement Model into CJR-X, the first mandatory nationwide episode-based payment model in Medicare's history.

Beginning October 1, 2027, most acute care hospitals would be accountable for the total cost and quality of hip, knee, and ankle replacements through a 90-day episode spanning inpatient and outpatient settings. The original CJR model generated an estimated $112.7 million in net savings while maintaining quality — justification CMS is citing for the national expansion. (See our Conversation Starter below for a deeper look at CJR-X.)

Meanwhile, the outpatient side also deserves attention. MedPAC's March 2026 report urged CMS to continue expanding site-neutral payment policies, building on the CY 2026 OPPS rule that already cut drug administration reimbursement at off-campus hospital outpatient departments to 40% of the OPPS rate. CMS has also signaled it will likely increase the 340B recoupment reduction from 0.5% to as high as 2% in the CY 2027 OPPS rule — a direct hit to outpatient revenue.

So What?

• The combined picture is one of compounding reimbursement pressure across both inpatient and outpatient settings. A below-inflation inpatient update, shrinking uncompensated care payments, expanding site-neutral payments, and a looming 340B recoupment escalation all converge simultaneously. As a result, health system CFOs will be laser-focused on operational efficiency and revenue integrity — and increasingly receptive to solutions that demonstrably protect margin.

• In particular, CJR-X creates an immediate demand signal. Hospitals that have never participated in a bundled payment model will need care coordination technology, post-acute network management, patient engagement platforms, and episode-level analytics to manage 90-day episodes. The AHA has already flagged that mandatory participation presents challenges for hospitals lacking scale or financial capacity for care redesign — precisely the gap industry partners can help fill.