No office rate
Choose 66155 when the documented trabeculectomy includes an iridectomy; 66150 describes the version without one.
On this page
CMS RVU26D · Effective 2026-10-01
66155 Glaucoma surgery Medicare reimbursement rates in Wyoming
Reports glaucoma filtration surgery that creates a scleral drainage pathway and includes an iridectomy to help lower intraocular pressure. Compare 66155 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 66155 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
$753.75
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.
Ophthalmic surgery
About 66155: Trabeculectomy with iridectomy
Reports glaucoma filtration surgery that creates a scleral drainage pathway and includes an iridectomy to help lower intraocular pressure.
An ophthalmologist performs this operation to create a filtration pathway through the sclera, allowing aqueous fluid to drain and helping reduce intraocular pressure. The procedure includes removal of a portion of the iris. It is used for glaucoma when surgical pressure reduction is needed; the operative report should establish that the surgeon performed the filtration procedure with an iridectomy. It is typically performed in an operating room or ambulatory surgery setting.
Report one unit for the operated eye when the documented procedure matches this service. CMS assigns a 90-day global period, which includes the day-before preoperative visit and 90 days of related postoperative care. If other procedures are performed in the same session, CMS pays the highest-valued procedure in full and applies the standard reduction to the others. With modifier 50, the bilateral procedure is paid at 150%. Assistant-at-surgery payment is restricted; co-surgeons and team surgery are not permitted.
CMS billing rules for 66155
- 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
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU10.26 · 45%
- Practice expense (office) RVU11.70 · 51%
- Malpractice RVU0.82 · 4%
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.
66155 compared with similar codes
Office rates for Wyoming, from the same CMS release.
No office rate
This is a different trabeculectomy code specified for absence of previous ocular surgery or trauma. Select based on the procedure and circumstances documented, not the shared glaucoma indication.
No office rate
This trabeculectomy code addresses scarring from previous ocular surgery or trauma, rather than distinguishing the service by inclusion of an iridectomy.
No office rate
This dilates the aqueous outflow canal without a retention device; it is not a scleral filtration procedure with iridectomy.
Compare 66155 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
$753.75
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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 66155 in Wyoming**.
PPRRVU2026_Oct_nonQPP.csv
7,364
- Code
- 66155
- Physician work
- 10.26
- Practice expense
- 11.70
- Malpractice
- 0.82
GPCI2026.csv
112
- Locality
- Wyoming**
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.740
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 10.26 | × 1.000 | 10.2600 |
| Practice expense | 11.70 | × 1.000 | 11.7000 |
| Malpractice | 0.82 | × 0.740 | 0.6068 |
| Total RVUs | 22.5668 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Wyoming**$753.75
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 10.26 | 1 |
| Practice expense | 11.7 | 1 |
| Malpractice | 0.82 | 0.74 |
(10.26 × 1 + 11.7 × 1 + 0.82 × 0.74) × $33.4009 = $753.75
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.
66155 billing questions
How does this differ from 66150?
This code includes an iridectomy as part of the glaucoma filtration surgery. Code 66150 describes the corresponding procedure without an iridectomy.
What documentation supports this code?
The operative report should document the scleral filtration procedure and the iridectomy. A diagnosis of glaucoma alone does not establish that this specific operation was performed.
Is related postoperative care separately reported?
The 90-day global period includes related postoperative care and the day-before preoperative visit. Unrelated services are distinct from that included care.
How is bilateral surgery reported?
For bilateral surgery, report modifier 50; CMS pays the bilateral procedure at 150%.
Can an assistant or co-surgeon be reported?
CMS restricts assistant-at-surgery payment for this procedure. Co-surgeons and team surgery are not permitted.
What happens when another procedure is performed in the same session?
CMS pays the highest-valued procedure in full and applies the standard multiple procedure reduction to the other procedures.
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.
7,36166030,,Injection treatment of eye,A,,1.27,3.93,,1.56,,0.09,5.29,2.92,0,010,0.10,0.80,0.10,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36266130,,Remove eye lesion,A,,7.63,12.90,,6.02,,0.62,21.15,14.27,0,090,0.10,0.70,0.20,2,1,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36366150,,Glaucoma surgery,A,,10.27,11.70,NA,11.70,,0.82,22.79,22.79,0,090,0.10,0.70,0.20,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36466155,,Glaucoma surgery,A,,10.26,11.70,NA,11.70,,0.82,22.78,22.78,0,090,0.10,0.70,0.20,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36566160,,Glaucoma surgery,A,,12.08,12.34,NA,12.34,,0.98,25.40,25.40,0,090,0.10,0.70,0.20,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36666170,,Glaucoma surgery,A,,13.59,13.41,NA,13.41,,1.09,28.09,28.09,0,090,0.10,0.70,0.20,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36766172,,Incision of eye,A,,14.47,15.18,NA,15.18,,1.16,30.81,30.81,0,090,0.10,0.70,0.20,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
10902402,WA,99,REST OF WASHINGTON,1.013,1.053,0.761
11011402,WV,16,WEST VIRGINIA,1.000,0.869,1.431
11106302,WI,00,WISCONSIN,1.000,0.958,0.308
11203602,WY,21,WYOMING**,1.000,1.000,0.740
113"MAC Assignments as of November 22, 2023",,,,,,
114,,,,,,
115*Work GPCI reflects a 1.5 floor in Alaska established by the MIPPA.,,,,,,