CPT code 27125: Hip replacement, partial femoral replacement2026 Medicare rate & RVUs in California
Reports partial hip arthroplasty replacing the femoral head while retaining the natural acetabulum, commonly for selected hip conditions requiring prosthetic replacement.
CMS doesn’t publish an office rate for 27125 in California.
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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What 27125 covers
The surgeon replaces the femoral head with a prosthesis while leaving the patient’s acetabulum in place. This partial arthroplasty, also called hemiarthroplasty, is commonly performed by an orthopedic surgeon in a hospital or other surgical facility. The operative report should make clear that the acetabulum was retained and describe the implanted femoral prosthesis and the condition prompting surgery.
Report this code when the procedure is a partial replacement, rather than a total hip arthroplasty that also replaces the acetabular surface. The code has 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 other procedures at 50%. For bilateral surgery reported with modifier 50, payment is 150%. Assistant-at-surgery services may be paid; co-surgeon payment requires 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 27125 pays more and less in California
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
29 of 29 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Bakersfield, CA | Unavailable | $1,037.69 |
| Chico, CA | Unavailable | $1,028.24 |
| El Centro, CA | Unavailable | $1,028.81 |
| Fresno, CA | Unavailable | $1,028.24 |
| Hanford, CA | Unavailable | $1,028.24 |
| Los Angeles, CA | Unavailable | $1,088.92 |
| Madera, CA | Unavailable | $1,028.24 |
| Marin County, CA | Unavailable | $1,180.82 |
| Merced, CA | Unavailable | $1,028.24 |
| Modesto, CA | Unavailable | $1,028.24 |
| Napa, CA | Unavailable | $1,134.19 |
| Oxnard, CA | Unavailable | $1,076.80 |
| Redding, CA | Unavailable | $1,028.24 |
| Rest of California | Unavailable | $1,028.24 |
| Riverside, CA | Unavailable | $1,065.10 |
| Sacramento, CA | Unavailable | $1,063.95 |
| Salinas, CA | Unavailable | $1,059.73 |
| San Benito County, CA | Unavailable | $1,209.91 |
| San Diego, CA | Unavailable | $1,073.91 |
| San Francisco, CA | Unavailable | $1,176.92 |
| San Luis Obispo, CA | Unavailable | $1,044.56 |
| Santa Clara County, CA | Unavailable | $1,193.98 |
| Santa Cruz, CA | Unavailable | $1,075.56 |
| Santa Maria, CA | Unavailable | $1,060.76 |
| Santa Rosa, CA | Unavailable | $1,085.37 |
| Stockton, CA | Unavailable | $1,028.24 |
| Vallejo, CA | Unavailable | $1,128.57 |
| Visalia, CA | Unavailable | $1,028.24 |
| Yuba City, CA | Unavailable | $1,028.24 |
How the 27125 rate is calculated
Each of 27125’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 · 27125
RVUs × geographic indexes × conversion factor
Work16.22
16.22 RVUs× 1.000 GPCI
Practice expense11.36
11.36 RVUs× 1.000 GPCI
Malpractice3.43
3.43 RVUs× 1.000 GPCI
Adjusted RVUs
31.0100
Conversion factor
$33.4009
Medicare rate
$1,035.76
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 27125
27125 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27125
Hip replacement, partial femoral replacement
| 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 · 27125
Hip replacement, partial femoral replacement
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
27125 without 50 · national facility
$1,035.76
Hip replacement, partial femoral replacement
27125-50 · Bilateral: 150%
$1,553.64
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).
27125 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 27130Hip replacementTotal joint, primary procedure
- Choose 27125 when the femoral side is replaced and the acetabulum is retained. Choose 27130 when the acetabular surface is also replaced.
- 27132Hip replacementConversion after prior surgery
- 27132 describes conversion of previous hip surgery to total hip arthroplasty; 27125 describes a partial replacement, not conversion to a total replacement.
- 27236Femoral neck repairOpen fixation or replacement
- For open treatment of a proximal femoral-neck fracture with fixation or prosthetic replacement, compare the fracture-treatment code with 27125 and select based on the procedure performed and applicable CPT guidance.
27125 billing questions
How does this differ from total hip arthroplasty?
This procedure replaces the femoral head and retains the natural acetabulum. Total hip arthroplasty replaces the acetabular surface as well.
What operative details support reporting this code?
The operative report should document partial replacement of the hip, identify the femoral prosthesis, and clarify that the acetabulum was retained.
What is included in the global period?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is bilateral surgery paid?
When both hips are treated in the same session and the service is reported with modifier 50, CMS payment is 150%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery services may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
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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