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Billing code 27558: Knee dislocation repairMedicare rate & RVUs

Reports open treatment of a tibiofemoral knee dislocation when the operation includes repair of one or more cruciate ligaments.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $1,067.49 for 27558 nationally in a facility.

Medicare rate · 27558

Knee dislocation repair

Swap in your local Medicare rate.

Work RVUs
17.93
Total RVUs
31.96
Global days
090

National rate · 2026

$1,067.49

Facility setting, before claim adjustments.

See every locality for 27558 → · Billed by an NP, PA or therapist? →

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 10 sections
  1. Medicare rate
  2. What 27558 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

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.

Where 27558 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

27558 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$969.39
Alaska*Unavailable$1,331.64
ArizonaUnavailable$1,038.51
ArkansasUnavailable$957.41
AtlantaUnavailable$1,100.45
AustinUnavailable$1,073.87
BakersfieldUnavailable$1,061.56
Baltimore/Surr. CntysUnavailable$1,132.26
BeaumontUnavailable$1,027.75
BrazoriaUnavailable$1,041.07

27558 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
27558 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

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

Swap in your local Medicare rate.

Work 17.93Practice expense 10.20Malpractice 3.83

31.9600 adjusted RVUs×$33.4009 conversion factor=$1,067.49

All indexes start 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

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)2Permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share 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.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

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).

When to use modifier 50

27558 compared with similar codes

Compare codes

27558 vs 27556 vs 27557 vs 27552 vs 27560: national Medicare rates

Swap in your local Medicare rate.

  • 27558
    Knee dislocation repair · 17.93 wRVU
    —
  • 27556
    Knee dislocation · 12.68 wRVU
    —
  • 27557
    Knee dislocation · 15.5 wRVU
    —
  • 27552
    Knee reduction · 7.98 wRVU
    —
  • 27560
    Patellar dislocation · 3.89 wRVU
    $466.61

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.

Codes related to 27558

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 27558
CodeHow it relatesNational office range
Same family
27556Knee dislocationOpen knee-dislocation treatment without the ligament-repair work that distinguishes this code.No office rate
27557Knee dislocationOpen knee-dislocation treatment with ligament repair, but without cruciate ligament repair.No office rate
Used instead
27550Knee dislocationClosed treatment of a knee dislocation without anesthesia, rather than open operative treatment.$543.25–$786.62
27552Knee reductionClosed treatment of a knee dislocation requiring anesthesia, rather than open operative treatment.No office rate
27560Patellar dislocationFor closed treatment of a patellar dislocation, not a tibiofemoral knee dislocation.$408.68–$602.18

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
RVUs for 27558PPRRVU2026_Oct_nonQPP.csv, line 2,949 (RVU26D)

Open CMS sourceHow we calculate rates

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