CPT code 27558: Knee dislocation repair2026 Medicare rate & RVUs in Minnesota
Reports open treatment of a tibiofemoral knee dislocation when the operation includes repair of one or more cruciate ligaments.
CMS doesn’t publish an office rate for 27558 in Minnesota.
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 27558 covers
An orthopedic surgeon typically reports this service for operative treatment of a tibiofemoral knee dislocation when the procedure includes repair of a cruciate ligament. These injuries may involve substantial disruption of the knee’s stabilizing ligaments and are generally managed in an operating room. The operative work may include reducing the dislocated joint, stabilizing it, and repairing associated ligaments; the code also accommodates meniscal repair performed with the dislocation treatment.
Choose this code when the documented open treatment includes cruciate ligament repair, rather than open treatment without ligament repair or ligament repair that does not include a cruciate ligament. The operative report should establish the dislocation, the open approach, and the ligament structures repaired. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made, and co-surgeons are permitted; 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.
27558 in Minnesota
| Payment locality | Office | Facility |
|---|---|---|
| Minnesota | Unavailable | $987.31 |
How the 27558 rate is calculated
Each of 27558’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 · 27558
RVUs × geographic indexes × conversion factor
Work17.93
17.93 RVUs× 1.000 GPCI
Practice expense10.20
10.20 RVUs× 1.000 GPCI
Malpractice3.83
3.83 RVUs× 1.000 GPCI
Adjusted RVUs
31.9600
Conversion factor
$33.4009
Medicare rate
$1,067.49
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 27558
27558 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27558
Knee dislocation repair
| 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) | 2 | 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 · 27558
Knee dislocation repair
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
27558 without 50 · national facility
$1,067.49
Knee dislocation repair
27558-50 · Bilateral: 150%
$1,601.24
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).
27558 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 27556Knee dislocation
- 27556 describes open treatment without ligament repair. Choose 27558 when the open dislocation treatment includes cruciate ligament repair.
- 27557Knee dislocation
- 27557 covers open treatment with ligament repair when cruciate repair is not included. The inclusion of cruciate ligament repair distinguishes 27558.
- 27552Knee reduction
- 27552 is closed treatment requiring anesthesia. It is not the open operative treatment with cruciate ligament repair reported with 27558.
- 27560Patellar dislocation
- 27560 concerns closed treatment of a dislocated patella. Code 27558 concerns open treatment of a tibiofemoral knee dislocation with cruciate ligament repair.
27558 billing questions
How does this differ from 27557?
Use 27558 when the open knee-dislocation treatment includes repair of a cruciate ligament. Code 27557 is for the corresponding ligament-repair treatment when cruciate repair is not included.
When would 27556 be a better fit?
Use 27556 for open treatment of a knee dislocation when the procedure does not include ligament repair. The operative note should support the services actually performed.
Is meniscal repair included in this code?
The code accommodates meniscal repair performed with the open knee-dislocation treatment and ligament repair. Do not treat that associated repair as a separate service solely because it is documented.
Does the code have a 90-day global period?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is bilateral treatment reported?
CMS identifies this as a bilateral procedure; reporting modifier 50 is paid at 150%. Document the treatment performed on each side.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made, and co-surgeons are permitted. CMS does not permit team-surgery billing 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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