CPT code 28302: Ankle osteotomy, ankle bone alignment2026 Medicare rate & RVUs in Missouri
Reports surgical cutting and realignment of an ankle bone to correct deformity, with fixation when needed, during reconstructive foot-and-ankle surgery.
CMS doesn’t publish an office rate for 28302 in Missouri.
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 28302 covers
This service is a corrective cut through bone at the ankle, allowing the surgeon to change alignment for an angular deformity. Orthopedic foot-and-ankle surgeons and podiatrists perform it in an operating room; the bone may be stabilized with internal fixation as part of the osteotomy. It is distinct from cuts directed to the heel, other tarsal bones, or metatarsals.
Report 28302 for the ankle-site osteotomy, not simply for ankle exposure or fixation without the corrective bone cut. The operative report should identify the treated side and site, the deformity and correction, and whether fixation was used. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and others at 50%; bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; 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 28302 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | Unavailable | $654.83 |
| Metropolitan St. Louis, MO | Unavailable | $660.28 |
| Rest of Missouri | Unavailable | $632.36 |
How the 28302 rate is calculated
Each of 28302’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 · 28302
RVUs × geographic indexes × conversion factor
Work9.50
9.50 RVUs× 1.000 GPCI
Practice expense8.66
8.66 RVUs× 1.000 GPCI
Malpractice2.02
2.02 RVUs× 1.000 GPCI
Adjusted RVUs
20.1800
Conversion factor
$33.4009
Medicare rate
$674.03
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 28302
28302 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 28302
Ankle osteotomy, ankle bone alignment
| 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 · 28302
Ankle osteotomy, ankle bone alignment
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
28302 without 50 · national facility
$674.03
Ankle osteotomy, ankle bone alignment
28302-50 · Bilateral: 150%
$1,011.05
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).
28302 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 28300Heel osteotomyCalcaneus realignment
- Use 28300 when the osteotomy is directed to the calcaneus. Code 28302 is for the ankle-site osteotomy.
- 28304Midfoot osteotomyWithout bone graft
- Use 28304 for an osteotomy of a tarsal bone other than the calcaneus or talus; 28302 identifies the ankle site.
- 28305Midfoot osteotomyWith autograft
- Code 28305 describes a tarsal osteotomy with autograft. Select 28302 for an ankle-site osteotomy, not based solely on whether graft is used.
28302 billing questions
How is 28302 distinguished from a heel or midfoot osteotomy?
Choose 28302 when the corrective bone cut is at the ankle. A cut directed to the calcaneus is represented by 28300, while 28304 applies to other tarsal bones.
Is internal fixation separately reported with 28302?
The osteotomy includes the option of internal fixation. Fixation used to stabilize the correction is part of the service described by this code.
What documentation supports 28302?
Document the ankle-site bone cut, the deformity being corrected, the side, the realignment performed, and any fixation used.
How is bilateral 28302 handled under the CMS payment rule?
For a bilateral procedure, CMS pays 150% when modifier 50 is used.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeons are paid only with supporting documentation; team surgery is 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
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