Billing code 24566: Epicondyle fixationMedicare rate & RVUs in Guam
Reports percutaneous skeletal fixation of a medial or lateral humeral epicondyle fracture when the fracture is manipulated and stabilized without open exposure.
CMS doesn’t publish an office rate for 24566 in Guam.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 24566 covers
An orthopedic surgeon uses a percutaneous approach to manipulate and stabilize a fracture of the medial or lateral epicondyle at the elbow, typically with skeletal fixation such as pins or wires. The procedure is performed in a surgical setting, often with imaging to guide reduction and fixation. The fracture site is the epicondyle, not the supracondylar region or the humeral condyles.
Report this code when the operative record supports percutaneous skeletal fixation and identifies the epicondylar fracture, laterality, manipulation, and fixation performed. Choose a closed-treatment code when the fracture is managed without percutaneous skeletal fixation, or an open-treatment code when the fracture is exposed for fixation. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 bilateral reporting is paid at 150%. Medicare does not pay an assistant at surgery; co-surgeons and team surgery are 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.
24566 in Hawaii, Guam
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam | Unavailable | $709.92 |
How the 24566 rate is calculated
Each of 24566’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 · 24566
RVUs × geographic indexes × conversion factor
Work8.83
8.83 RVUs× 1.000 GPCI
Practice expense9.97
9.97 RVUs× 1.000 GPCI
Malpractice1.88
1.88 RVUs× 1.000 GPCI
Adjusted RVUs
20.6800
Conversion factor
$33.4009
Medicare rate
$690.73
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 24566
24566 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 24566
Epicondyle fixation
| 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) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| 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 · 24566
Epicondyle fixation
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
24566 without 50 · national facility
$690.73
Epicondyle fixation
24566-50 · Bilateral: 150%
$1,036.10
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).
24566 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 24565Fracture treatment
- Use 24565 for closed treatment with manipulation when percutaneous skeletal fixation is not performed. Use 24566 when percutaneous skeletal fixation is part of the treatment.
- 24575Epicondylar fracture repair
- 24575 describes open treatment of the epicondylar fracture. 24566 applies when fixation is performed percutaneously rather than through open exposure.
- 24538Humerus fracture fixation
- 24538 concerns a supracondylar humeral fracture, not a fracture of the medial or lateral epicondyle.
- 24582Humeral fracture fixation
- 24582 is for a humeral condylar fracture. Select 24566 when the documented fracture involves an epicondyle.
24566 billing questions
When is 24566 appropriate instead of closed treatment?
Use 24566 when the epicondylar fracture is manipulated and stabilized with percutaneous skeletal fixation. Closed-treatment codes apply when percutaneous skeletal fixation is not performed.
How does 24566 differ from open treatment?
This code describes fixation through a percutaneous approach. Use the open-treatment code when the fracture is exposed for fixation.
What documentation supports 24566?
The operative report should identify the medial or lateral epicondyle fracture, laterality, manipulation, and percutaneous skeletal fixation performed.
Does the fracture care global period include follow-up?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant surgeon be paid for 24566?
Medicare does not pay an assistant at surgery for this code. Co-surgeons and team surgery are not permitted.
How is bilateral reporting handled?
When the procedure is performed bilaterally and reported with modifier 50, Medicare pays 150%.
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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