CPT code 24666: Radial head surgery, with prosthetic replacement2026 Medicare rate & RVUs in Texas
Open surgery for a radial head or neck fracture that includes replacing the radial head with a prosthesis, typically when reconstruction is not feasible.
CMS doesn’t publish an office rate for 24666 in Texas.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 24666 covers
This code describes open treatment of a radial head or neck fracture that includes replacement of the radial head with a prosthesis. An orthopedic surgeon typically performs the operation in a hospital or ambulatory surgery center, using an open approach to address the fracture and place the replacement. It is generally selected when the radial head cannot be adequately reconstructed, such as with a severely comminuted fracture. The service is distinct from open fracture treatment without prosthetic replacement.
Report the code when the operative record supports open treatment and radial head prosthetic replacement; documentation should identify the fracture and describe the procedure performed. The day-before preoperative visit and 90 days of related postoperative care are included in the global period. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 applies to bilateral procedures, paid at 150%. Assistant-at-surgery services may be paid; co-surgeons require supporting documentation, and team surgery is not permitted.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
Where 24666 pays more and less in Texas
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
8 of 8 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Austin, TX | Unavailable | $695.61 |
| Beaumont, TX | Unavailable | $653.52 |
| Brazoria, TX | Unavailable | $670.60 |
| Dallas, TX | Unavailable | $677.50 |
| Fort Worth, TX | Unavailable | $675.35 |
| Galveston, TX | Unavailable | $674.33 |
| Houston, TX | Unavailable | $710.02 |
| Rest of Texas | Unavailable | $663.49 |
How the 24666 rate is calculated
Each of 24666’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 24666
RVUs × geographic indexes × conversion factor
Work9.61
9.61 RVUs× 1.000 GPCI
Practice expense8.95
8.95 RVUs× 1.000 GPCI
Malpractice1.95
1.95 RVUs× 1.000 GPCI
Adjusted RVUs
20.5100
Conversion factor
$33.4009
Medicare rate
$685.05
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 24666
24666 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 24666
Radial head surgery, with prosthetic replacement
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.69/0.21 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 24666
Radial head surgery, with prosthetic replacement
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
24666 without 50 · national facility
$685.05
Radial head surgery, with prosthetic replacement
24666-50 · Bilateral: 150%
$1,027.58
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
24666 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 24665Radial head surgeryWithout prosthetic replacement
- Both describe open treatment of a radial head or neck fracture. Choose 24666 when the procedure includes prosthetic replacement; 24665 is for open treatment without that replacement.
- 24650Radial fracture careHead or neck, no manipulation
- 24650 describes closed fracture treatment without manipulation. It does not describe open treatment with radial head prosthetic replacement.
- 24655Fracture reductionWith manipulation
- 24655 describes closed treatment with manipulation. Report 24666 when the surgeon performs open treatment that includes radial head prosthetic replacement.
24666 billing questions
When should I report 24666 instead of 24665?
Report 24666 when open treatment includes radial head prosthetic replacement. Use 24665 for the open fracture treatment when no prosthetic replacement is performed.
Can the prosthetic replacement be reported separately?
The replacement is included in this code’s described service. Do not report a separate radial-head replacement procedure for the same work.
How does the global period affect postoperative billing?
The day-before preoperative visit and 90 days of related postoperative care are included. The surgeon’s routine related follow-up during that period is part of the global service.
How are additional procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple procedure reduction when performed in the same session.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery services may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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