CPT code 27138: Hip revision, femoral component only2026 Medicare rate & RVUs in Michigan
Revision of the femoral side of an existing total hip replacement, reported when the surgeon revises that component while retaining the acetabular component.
CMS doesn’t publish an office rate for 27138 in Michigan.
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 27138 covers
An orthopedic surgeon reports this service when revising the femoral component of an existing total hip replacement while leaving the acetabular component in place. The operation may address problems such as femoral component loosening or mechanical failure. It is typically performed in a hospital or other surgical facility; the revision may include use of an allograft. The key distinction is that the work revises the femoral component alone, rather than both sides of the joint or the acetabular component alone.
The operative report should identify the component revised and describe the revision performed, including any allograft use. 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 27138 pays more and less in Michigan
| Payment locality | Office | Facility |
|---|---|---|
| Detroit, MI | Unavailable | $1,464.27 |
| Rest of Michigan | Unavailable | $1,350.67 |
How the 27138 rate is calculated
Each of 27138’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 · 27138
RVUs × geographic indexes × conversion factor
Work23.11
23.11 RVUs× 1.000 GPCI
Practice expense12.92
12.92 RVUs× 1.000 GPCI
Malpractice4.90
4.90 RVUs× 1.000 GPCI
Adjusted RVUs
40.9300
Conversion factor
$33.4009
Medicare rate
$1,367.10
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 27138
27138 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27138
Hip revision, femoral component only
| 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 · 27138
Hip revision, femoral component only
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
27138 without 50 · national facility
$1,367.10
Hip revision, femoral component only
27138-50 · Bilateral: 150%
$2,050.65
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).
27138 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 27134Hip revisionBoth components revised
- Use 27134 when both components of the existing total hip replacement are revised. This code is for the femoral component alone.
- 27137Hip revisionAcetabular component only
- Use 27137 when the acetabular component alone is revised; use this code when the femoral component alone is revised.
- 27130Hip replacementTotal joint, primary procedure
- 27130 describes primary total hip replacement. This code applies when the femoral component of an existing total hip replacement is revised.
27138 billing questions
How does this code differ from 27137?
This code is for revision of the femoral component alone. Code 27137 is for revision of the acetabular component alone.
When is 27134 more appropriate?
Use 27134 when the surgeon revises both the femoral and acetabular components. This code describes femoral-component-only revision.
Can an allograft be used with this service?
Yes. The code covers femoral-component revision with or without allograft; document the component revised and any graft use in the operative report.
What does the 90-day global period include?
It includes the day-before preoperative visit and 90 days of related postoperative care.
How is bilateral revision reported?
When the procedure is performed on both hips, modifier 50 identifies the bilateral service; Medicare pays it at 150%.
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.
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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