Billing code 27179: Femoral osteotomyMedicare rate & RVUs in Delaware
Corrective surgery at the femoral head or neck that reshapes proximal femoral alignment, reported when an osteotomy addresses a documented structural deformity.
CMS doesn’t publish an office rate for 27179 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 27179 covers
An orthopedic surgeon uses an osteotomy at the proximal femur to revise alignment or shape around the femoral head and neck. The operation is performed in a surgical setting for a structural deformity requiring correction at this location; the operative plan and technique distinguish it from hip replacement or repair of a fracture-related nonunion. Internal fixation may be used as part of the correction.
Report the code when the operative record supports revision of the femoral head or neck by osteotomy, rather than a different procedure on the hip or femur. Documentation should identify the deformity, the exact bone level treated, the corrective work, and fixation performed. The code has a 90-day global period, including the day-before preoperative visit and related postoperative care. In a same-session multiple-procedure claim, 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.
27179 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | Unavailable | $892.07 |
How the 27179 rate is calculated
Each of 27179’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 · 27179
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 13.62Practice expense 10.53Malpractice 2.91
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 27179
27179 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27179
Femoral 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 · 27179
Femoral 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
27179 without 50 · national facility
$903.83
Femoral osteotomy
27179-50 · Bilateral: 150%
$1,355.75
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).
27179 compared with similar codes
Compare codes
27179 vs 27170 vs 27178 vs 27176 vs 27125: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 27170Femur repair
- Use 27170 for repair of femoral head or neck nonunion or malunion with grafting. Use 27179 when the documented work is corrective osteotomy of the head or neck.
- 27178SCFE surgery
- Code 27178 is for a specified slipped-epiphysis treatment involving osteotomy and fixation. Select 27179 when the operative work is head-or-neck revision and is not that specified treatment.
- 27176Slipped epiphysis treatment
- Code 27176 describes pinning a slipped femoral epiphysis in situ. It does not describe revision of the femoral head or neck by osteotomy.
- 27125Hip replacement
- Code 27125 is partial hip replacement. It replaces part of the joint, unlike osteotomy to revise proximal femoral alignment.
27179 billing questions
How is this different from treatment of a slipped femoral epiphysis?
Choose this code when the documented operation revises the femoral head or neck by osteotomy. Codes 27175–27178 describe specific treatment approaches for slipped femoral epiphysis, so the procedure performed and indication guide selection.
How does this differ from code 27170?
Code 27170 describes repair of femoral head or neck nonunion or malunion with grafting. This code is for corrective revision by osteotomy, not a graft-based repair.
What documentation supports reporting this code?
Document the structural problem, the femoral head or neck level addressed, the osteotomy and corrective objective, and any fixation. The operative report should make clear how the work differs from a replacement or graft repair.
Are related postoperative visits included?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is bilateral surgery reported?
When the procedure is performed bilaterally, report modifier 50; CMS pays the bilateral procedure at 150%.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted for this code.
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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