On this page

CMS RVU26D · Effective 2026-10-01

27420 Patellar reconstruction Medicare reimbursement rates in Rhode Island

Reconstructs a patella that repeatedly dislocates or remains unstable, when the operation does not include the extensor realignment described by the related code. Compare 27420 office and facility rates across CMS payment localities in Rhode Island.

Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.

What does Medicare pay for 27420 in Rhode Island?

Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.

Office / nonfacility

No supported rate

Facility setting

$713.65

1 of 1 localities have a supported rate.

Payment area: Rhode Island

One mapped payment locality.

These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.

Find 27420 in your payment locality →

Orthopedic surgery

About 27420: Patellar instability reconstruction without extensor realignment

Reconstructs a patella that repeatedly dislocates or remains unstable, when the operation does not include the extensor realignment described by the related code.

An orthopedic surgeon uses this operation to stabilize a patella with recurrent dislocation or persistent instability. The work may involve soft-tissue or bony reconstruction around the kneecap, based on the patient’s anatomy and the cause of instability. It is typically performed in an operating room for a surgical episode rather than as an office service. The key distinction from 27422 is that this code is for reconstruction without the extensor-mechanism realignment specified by that code.

Select the code from the operative report’s description of the reconstruction and whether extensor realignment was performed. Documentation should identify the instability, the structures addressed, and the procedures used. Medicare assigns 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 others at 50%. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.

CMS billing rules for 27420

Global period
Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
Multiple procedures
Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
Bilateral procedures
Bilateral procedure with modifier 50 is paid at 150%.
Assistant at surgery
Assistant at surgery may be paid.
Co-surgeons
Co-surgeons paid only with supporting documentation.
Team surgery
Team surgery not permitted.

Where the value comes from

  • Work RVU10.00 · 47%
  • Practice expense (office) RVU8.98 · 43%
  • Malpractice RVU2.13 · 10%

80

Medicare services in 2024 · #5047 by national volume

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.

27420 compared with similar codes

Office rates for Rhode Island, from the same CMS release.

27422

Patellar reconstruction

With extensor realignment

No office rate

This code is for patellar reconstruction without the extensor realignment specified for 27422. Base selection on the documented operative work.

27425

Patellar release

Open lateral retinacular release

No office rate

27425 describes an open lateral retinacular release. It is not the code for reconstructing a recurrently dislocating patella.

27424

Patella surgery

Removal or revision

No office rate

27424 describes removal of all or part of the patella; 27420 is used when the operative service reconstructs and stabilizes the patella.

Compare 27420 by payment locality

Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.

1 of 1 payment localities

Office and facility base rates · shared scale starting at $0

Need rates for a whole code list?

Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.

Explore fee-sheet early access →

How this local rate is calculated

Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 27420 in Rhode Island.

PPRRVU2026_Oct_nonQPP.csv

2,883

Code
27420
Physician work
10.00
Practice expense
8.98
Malpractice
2.13

GPCI2026.csv

92

Locality
Rhode Island
Physician work
1.019
Practice expense
1.033
Malpractice
0.892
Facility calculation for 27420 in Rhode Island
ComponentRVULocality factorAdjusted
Physician work10.00× 1.01910.1900
Practice expense8.98× 1.0339.2763
Malpractice2.13× 0.8921.9000
Total RVUs21.3663
Conversion factor× 33.4009

Facility rate, Rhode Island$713.65

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.
Explore RVUs, geographic factors and the full formula

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work101.019
Practice expense8.981.033
Malpractice2.130.892

(10 × 1.019 + 8.98 × 1.033 + 2.13 × 0.892) × $33.4009 = $713.65

The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.

27420 billing questions

How do I choose between 27420 and 27422?

Use 27420 when the patellar reconstruction does not include the extensor realignment specified for 27422. Check the operative report for the actual technique rather than relying only on a diagnosis of patellar instability.

What postoperative care is included?

The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

How is bilateral surgery reported?

For bilateral procedures, report modifier 50; CMS pays the bilateral procedure at 150%.

Can an assistant or co-surgeon be reported?

An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation, while team surgery is not permitted.

What happens when other procedures are performed in the same session?

Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the other procedures are paid at 50%.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.

Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.

RVUs for 27420PPRRVU2026_Oct_nonQPP.csv, line 2,883 (RVU26D)
Geographic factors for Rhode IslandGPCI2026.csv, line 92 (RVU26D)