Billing code 25360: Ulnar osteotomyMedicare rate & RVUs in Washington
Reports corrective osteotomy of the ulna when a surgeon cuts and repositions that bone to address a deformity or alignment problem.
CMS doesn’t publish an office rate for 25360 in Washington.
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 25360 covers
An orthopedic or hand surgeon performs this operation by cutting the ulna and repositioning it to correct an alignment problem, such as a deformity or malunion. The procedure is generally performed in an operating room, with the surgical plan guided by the affected segment and the correction needed. The code is for work on the ulna alone; it does not describe a procedure that also revises the radius.
Select the code when the operative report supports corrective osteotomy of the ulna, rather than a specifically described shortening, lengthening, or reconstruction procedure. Document the indication, bone treated, planned correction, and work performed. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, the highest-valued procedure is paid in full and other procedures at 50%. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons are paid only with 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 25360 pays more and less in Washington
| Payment locality | Office | Facility |
|---|---|---|
| Rest Of Washington | Unavailable | $614.55 |
| Seattle (King Cnty) | Unavailable | $675.11 |
How the 25360 rate is calculated
Each of 25360’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 · 25360
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 8.52Practice expense 8.07Malpractice 1.67
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 25360
25360 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 25360
Ulnar osteotomy
| 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 · 25360
Ulnar osteotomy
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
25360 without 50 · national facility
$609.90
Ulnar osteotomy
25360-50 · Bilateral: 150%
$914.85
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).
25360 compared with similar codes
Compare codes
25360 vs 25350 vs 25365 vs 25390 vs 25391: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 25350Radius osteotomy
- This code applies to corrective osteotomy of the ulna; 25350 applies to the radius. Identify the bone treated in the operative report.
- 25365Forearm osteotomy
- Use 25365 when the procedure revises both the radius and ulna. This code is for the ulna alone.
- 25390Bone shortening
- 25390 is the specific code for shortening the radius or ulna. Choose this code for a broader corrective ulnar osteotomy when shortening is not the procedure described.
- 25391Bone lengthening
- 25391 is for lengthening the radius or ulna. This code describes corrective osteotomy of the ulna when the documented procedure is not specifically lengthening.
25360 billing questions
When should this code be chosen instead of a radius-and-ulna osteotomy code?
Use this code when the corrective osteotomy is performed on the ulna alone. When both the radius and ulna are revised, consider the applicable code for the two-bone procedure.
How does this differ from an ulnar shortening procedure?
This code describes corrective osteotomy of the ulna generally. A specifically documented procedure to shorten the ulna is represented by the dedicated shortening code, 25390.
Does the 90-day global period include related postoperative care?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is modifier 50 handled for bilateral surgery?
CMS pays bilateral reporting with modifier 50 at 150%. The operative documentation should support treatment of both sides.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons are paid only when supporting documentation is provided; team surgery is not permitted.
What happens when this is performed with another procedure in the same session?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50%.
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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