Billing code 25370: Forearm osteotomyMedicare rate & RVUs in Delaware
Corrective surgery on the radius or ulna realigns one forearm bone to address a deformity, with code selection guided by the bone treated.
CMS doesn’t publish an office rate for 25370 in Delaware.
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 25370 covers
This operation changes the alignment of the radius or ulna to correct a bony deformity. An orthopedic or hand surgeon typically performs it in an operating room, using the operative approach and stabilization appropriate to the patient’s anatomy and surgical plan. The code is for correction involving one of the two forearm bones, rather than both bones together.
The operative report should identify the bone and side treated, the deformity or other indication, and the corrective work performed. Choose a different code when the procedure addresses both the radius and ulna or has a specifically described goal such as shortening. Medicare assigns a 90-day global period, including the day-before preoperative visit and related postoperative care during that period. For multiple procedures in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; 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.
25370 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | Unavailable | $928.38 |
How the 25370 rate is calculated
Each of 25370’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 · 25370
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 13.75Practice expense 11.48Malpractice 2.93
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 25370
25370 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 25370
Forearm 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) | 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 · 25370
Forearm 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
25370 without 50 · national facility
$940.57
Forearm osteotomy
25370-50 · Bilateral: 150%
$1,410.86
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).
25370 compared with similar codes
Compare codes
25370 vs 25365 vs 25350 vs 25360 vs 25390: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 25365Forearm osteotomy
- This code addresses one forearm bone; 25365 is the option for corrective work involving both the radius and ulna.
- 25350Radius osteotomy
- 25350 is a radius-only revision option. Select according to the specific procedure performed and the applicable code descriptor.
- 25360Ulnar osteotomy
- 25360 is an ulna-only revision option. Use the code that matches the specific procedure documented for the ulna.
- 25390Bone shortening
- 25390 describes shortening the radius or ulna. This code is for corrective revision rather than a specifically described shortening procedure.
25370 billing questions
How do I distinguish this code from a code for both forearm bones?
This code covers corrective work on the radius or the ulna. When the operative work corrects both bones, consider the code for the radius and ulna together.
What documentation supports reporting this code?
The operative report should identify the bone and side, describe the deformity or indication, and document the corrective procedure performed.
How is bilateral surgery reported?
For bilateral procedures, modifier 50 is paid at 150% under the CMS facts for this code.
How does the multiple procedure rule affect payment?
When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and the others are paid at 50%.
Can an assistant surgeon be reported?
CMS indicates that an assistant at surgery may be paid for this procedure. Co-surgeons and team surgery are not permitted.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
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
Fee sheets
Put 25370 and the rest of your codes on one sheet
Build a fee sheet from your own code list at your locality, put your payer contracts beside Medicare, and see what changed each quarter.
Build my fee sheetOr price your code list free →