Use 27428 when the reconstructed ligament work is intra-articular. This code is for extra-articular reconstruction.
On this page
CMS RVU26D · Effective 2026-10-01
27427 Knee reconstruction Medicare reimbursement rates in Wyoming
Reports surgical reconstruction or augmentation of an extra-articular knee ligament when instability requires rebuilding structures outside the knee joint. Compare 27427 office and facility rates across CMS payment localities in Wyoming.
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 27427 in Wyoming?
Wyoming 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
$646.43
1 of 1 localities have a supported rate.
Payment area: Wyoming**
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.
Orthopedic surgery
About 27427: Extra-articular knee ligament reconstruction
Reports surgical reconstruction or augmentation of an extra-articular knee ligament when instability requires rebuilding structures outside the knee joint.
An orthopedic surgeon uses this service to rebuild or augment a ligament outside the knee joint, restoring stability when the ligament cannot be managed with a primary repair alone. The operation is typically performed in a hospital or ambulatory surgery center for traumatic or chronic knee instability; the operative report should identify the reconstructed ligament and establish that the work is extra-articular.
Choose this code for extra-articular reconstruction, not reconstruction within the joint or a combined intra- and extra-articular procedure. The 90-day global period includes 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 other procedures are subject to the standard 50% reduction. 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.
CMS billing rules for 27427
- 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 RVU9.55 · 48%
- Practice expense (office) RVU8.42 · 42%
- Malpractice RVU1.87 · 9%
417
Medicare services in 2024 · #3702 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.
27427 compared with similar codes
Office rates for Wyoming, from the same CMS release.
Use 27429 when the operation reconstructs both intra-articular and extra-articular structures; use this code for extra-articular reconstruction alone.
Code 27405 is for primary repair of a torn knee ligament. This code represents reconstruction or augmentation of an extra-articular ligament.
Compare 27427 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
Wyoming** →
Office / nonfacility
Unavailable
Facility
$646.43
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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 27427 in Wyoming**.
PPRRVU2026_Oct_nonQPP.csv
2,887
- Code
- 27427
- Physician work
- 9.55
- Practice expense
- 8.42
- Malpractice
- 1.87
GPCI2026.csv
112
- Locality
- Wyoming**
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.740
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 9.55 | × 1.000 | 9.5500 |
| Practice expense | 8.42 | × 1.000 | 8.4200 |
| Malpractice | 1.87 | × 0.740 | 1.3838 |
| Total RVUs | 19.3538 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Wyoming**$646.43
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 9.55 | 1 |
| Practice expense | 8.42 | 1 |
| Malpractice | 1.87 | 0.74 |
(9.55 × 1 + 8.42 × 1 + 1.87 × 0.74) × $33.4009 = $646.43
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.
27427 billing questions
How is this distinguished from 27428 or 27429?
Use 27427 for reconstruction of an extra-articular ligament. Code 27428 describes intra-articular reconstruction, while 27429 represents work involving both locations.
What should the operative report document?
It should identify the ligament reconstructed, describe the reconstruction or augmentation performed, and make clear that the work was extra-articular.
Can this be reported with a primary ligament repair?
A reconstruction is distinct from primary repair. The record should support each separately reported service, and same-session multiple-procedure payment reduction may apply.
How is bilateral surgery reported?
For bilateral procedures, report modifier 50; CMS pays this code at 150% under the stated bilateral rule.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
What care is included in the global period?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
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.
