Billing code 27137: Hip revisionMedicare rate & RVUs in Guam
Reports revision of the acetabular side of an existing total hip replacement when the femoral component is retained, with or without bone grafting.
CMS doesn’t publish an office rate for 27137 in Guam.
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 27137 covers
An orthopedic surgeon revises the socket-side component of an existing total hip replacement while retaining the femoral component. The operation may address problems such as loosening, wear, bone loss, or instability. Autograft or allograft may be used as part of the acetabular revision. These procedures are generally performed in a hospital or other surgical facility.
Select this code when the acetabular component is revised and the femoral component is not; the operative report should identify which prosthetic components were removed, revised, or retained and describe any grafting. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 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.
27137 in Hawaii, Guam
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam | Unavailable | $1,309.14 |
How the 27137 rate is calculated
Each of 27137’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 · 27137
RVUs × geographic indexes × conversion factor
Work22.13
22.13 RVUs× 1.000 GPCI
Practice expense12.61
12.61 RVUs× 1.000 GPCI
Malpractice4.71
4.71 RVUs× 1.000 GPCI
Adjusted RVUs
39.4500
Conversion factor
$33.4009
Medicare rate
$1,317.67
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 27137
27137 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27137
Hip revision
| 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 · 27137
Hip revision
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
27137 without 50 · national facility
$1,317.67
Hip revision
27137-50 · Bilateral: 150%
$1,976.51
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).
27137 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 27134Hip revision
- Choose 27134 when both the acetabular and femoral components are revised. This code applies when the revision is limited to the acetabular component.
- 27138Hip revision
- 27138 describes revision of the femoral component only; this code describes revision of the acetabular component only.
- 27130Hip replacement
- 27130 is for primary total hip replacement. Use this code for revision of the acetabular component of an existing total hip replacement.
- 27132Hip replacement
- 27132 describes conversion to total hip replacement after prior hip surgery. This code is for revising the acetabular component of an existing total hip replacement.
27137 billing questions
How do I distinguish this from 27134?
Use this code when the acetabular component is revised and the femoral component is retained. Code 27134 is for revision involving both components.
How does this differ from 27138?
This code identifies revision of the acetabular side; 27138 identifies revision of the femoral component only.
Does the global period include postoperative visits?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is modifier 50 handled for bilateral procedures?
CMS pays a bilateral procedure reported with modifier 50 at 150%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery services may be paid. Co-surgeon payment requires supporting documentation.
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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