What Medicare actually pays for after shoulder replacement

Reviewed by Erin Rose — healthcare price-transparency analyst. Last checked August 29, 2026. Part of the full shoulder-replacement recovery checklist. No affiliate links on this page — every link below goes to a primary source or another page on this site.

The equipment on this checklist is almost the same non-story as rotator cuff repair — Medicare's DME fee schedule barely touches a sling, an ice wrap, an adaptive shirt, or a sleep wedge. The surgery itself is a different, genuinely bigger Medicare story: 55,166 claims in five calendar quarters alone, a real shift in where the surgery happens, and a 3-day rule wrinkle that can catch patients who need rehab-facility support afterward.

Where does the surgery actually happen?

This is the part rotator cuff repair never had to address — that procedure is same-day outpatient essentially universally. Shoulder replacement is a joint-implant procedure with a real, if shrinking, hospital-stay footprint.

CMS's Inpatient-Only (IPO) list controls which procedures Medicare will pay for in an outpatient setting at all. In its CY2021 rule, CMS proposed eliminating the IPO list over a three-year phase-out, starting with the removal of nearly 300 musculoskeletal-related services:

That CMS fact sheet describes the policy as a class of ~300 services, not shoulder replacement by name. The shoulder-specific detail comes from the peer-reviewed claims study above, which states directly in its own background section: “In January 2021, the US Medicare program approved reimbursement of outpatient total shoulder arthroplasties (TSA), including anatomic and reverse TSAs.” Two independent evidence tiers — a CMS policy document and a peer-reviewed claims study naming the procedure specifically — converge on the same fact.

What happened next is the honest, unglamorous part: outpatient TSA grew from 3% of Medicare cases in 2019Q1 to 38% by 2022Q1. That's real growth — but it also means that as of the most recent data in this study, roughly 6 in 10 Medicare shoulder-replacement patients were still admitted for at least one night. This isn't a routine same-day surgery for this population yet, even though the door is open wider than it used to be.

The 2024 ASC addition — and why we're hedging it

Multiple industry and trade publications (orthopedic-device and ambulatory-surgery-center trade press) report that CMS added total shoulder arthroplasty (CPT codes 23470 and 23472) to its Ambulatory Surgical Center (ASC) Covered Procedures List effective January 1, 2024. We checked this claim against the CMS CY2024 OPPS/ASC final-rule fact sheet directly — its own narrative highlights dental-services and quality-measure changes, and does not name this addition in its prose. The CPT-code-level detail lives in the rule's addenda tables, which weren't practically searchable in our research pass.

We're stating this honestly rather than dropping it or citing it as if the CMS fact sheet said it directly: according to multiple independent industry reports of CMS's 2024 rule, shoulder replacement became ASC-eligible starting 2024. Treat it as well-corroborated secondary reporting, not a primary CMS citation.

The 3-day rule wrinkle for rehab-facility (SNF) coverage

AAOS's own reverse-total-shoulder-replacement patient page tells readers plainly that some people will need help after surgery:

Here's the wrinkle: standard Medicare only covers a stay in a skilled nursing facility (SNF) after a “qualifying inpatient hospital stay” of at least 3 consecutive days. Medicare.gov states it directly:

Put the two together: as shoulder replacement shifts toward shorter and same-day stays under the outpatient policy above, a patient who ends up needing SNF-level rehab support may not have a 3-day qualifying stay to point to. Medicare.gov is explicit that time spent under observation, rather than as an admitted inpatient, doesn't count toward that 3-day total — even overnight. There is a real exception: some Accountable Care Organizations have an approved “SNF 3-Day Rule Waiver,” and Medicare Advantage plans can waive the requirement too. This is a genuine, citable tension between two real Medicare policies, not an invented worry — if you think you might need rehab-facility support after surgery, ask your hospital discharge planner directly whether your expected stay will satisfy the 3-day rule. This page can't tell you your own situation; it can only tell you the rule exists.

What about the equipment?

Here the story really is the same as rotator cuff repair. All 68 HCPCS codes in data/coverage_status.json are lower-extremity or general-mobility durable medical equipment — walkers, canes, commodes, hospital beds. None of them apply to a sling, an ice wrap, an adaptive shirt, or a sleep wedge, confirmed by reading every code, not assumed. The sling itself was never a candidate either way: it's hospital-provided, handed to you before you leave, so it never reaches a Medicare claim in the first place.