CPT code 66605: Iridectomy, corneoscleral section2026 Medicare rate & RVUs in Vermont
Reports surgical removal of iris tissue through a corneoscleral section, with code selection based on the procedure performed and documented approach.
In Vermont, Medicare pays $903.96 for 66605 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 66605 nationwide
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 11 sections
What 66605 covers
An ophthalmic surgeon uses a corneoscleral section to remove iris tissue. The operative report should make clear that iris tissue was excised and describe the incision and extent of removal. This code distinguishes the corneoscleral-section procedure from codes for lesion removal and glaucoma-specific peripheral, sector, or total iridectomy procedures.
Report the service for the operation documented, not simply because iris tissue was handled during another eye procedure. The operative note should support the approach and the work performed. Medicare assigns a 90-day global period, including 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% multiple-procedure reduction. Bilateral reporting with modifier 50 is paid at 150%. Medicare does not pay an assistant at surgery for this code; co-surgeons and team surgery are 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.
How Vermont compares for 66605
Across 109 of 109 payment localities, the facility rate for 66605 runs from $848.42 in Arkansas to $1,169.09 in Alaska. Vermont pays $903.96. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Vermont · this page$903.96
- Los Angeles, CA · California$1,011.12+$107.16
- Washington, DC area · District of Columbia$1,031.65+$127.69
- Miami, FL · Florida$1,000.72+$96.76
- Chicago, IL · Illinois$979.93+$75.97
- Manhattan, NY · New York$1,046.99+$143.03
- Alaska · Alaska$1,169.09+$265.13
Other areas in Vermont first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $857.13 |
| ArkansasArkansas | — | $848.42 |
| ArizonaArizona | — | $907.98 |
| Bakersfield, CACalifornia | — | $961.79 |
| Chico, CACalifornia | — | $958.15 |
| El Centro, CACalifornia | — | $958.34 |
| Fresno, CACalifornia | — | $958.15 |
| Hanford, CACalifornia | — | $958.15 |
| Madera, CACalifornia | — | $958.15 |
| Merced, CACalifornia | — | $958.15 |
| Modesto, CACalifornia | — | $958.15 |
| Napa, CACalifornia | — | $1,073.10 |
| Oxnard, CACalifornia | — | $1,003.15 |
| Redding, CACalifornia | — | $958.15 |
| Rest of CaliforniaCalifornia | — | $958.15 |
| Riverside, CACalifornia | — | $970.37 |
| Sacramento, CACalifornia | — | $995.53 |
| Salinas, CACalifornia | — | $991.51 |
| San Diego, CACalifornia | — | $1,007.05 |
| Marin County, CACalifornia | — | $1,125.34 |
| San Francisco, CACalifornia | — | $1,124.08 |
| San Benito County, CACalifornia | — | $1,148.79 |
| Santa Clara County, CACalifornia | — | $1,143.63 |
| San Luis Obispo, CACalifornia | — | $976.50 |
| Santa Cruz, CACalifornia | — | $1,010.76 |
| Santa Maria, CACalifornia | — | $993.10 |
| Santa Rosa, CACalifornia | — | $1,020.47 |
| Stockton, CACalifornia | — | $958.15 |
| Vallejo, CACalifornia | — | $1,071.28 |
| Visalia, CACalifornia | — | $958.15 |
| Yuba City, CACalifornia | — | $958.15 |
| ColoradoColorado | — | $951.27 |
| ConnecticutConnecticut | — | $976.43 |
| DelawareDelaware | — | $919.99 |
| Fort Lauderdale, FLFlorida | — | $962.04 |
| Rest of FloridaFlorida | — | $926.42 |
| Atlanta, GAGeorgia | — | $942.21 |
| Rest of GeorgiaGeorgia | — | $887.59 |
| Hawaii, Guam, HIHawaii | — | $969.37 |
| IowaIowa | — | $867.93 |
| IdahoIdaho | — | $872.88 |
| East St. Louis, ILIllinois | — | $930.01 |
| Rest of IllinoisIllinois | — | $910.31 |
| Suburban Chicago, ILIllinois | — | $969.92 |
| IndianaIndiana | — | $876.35 |
| KansasKansas | — | $867.20 |
| KentuckyKentucky | — | $876.04 |
| New Orleans, LALouisiana | — | $906.42 |
| Rest of LouisianaLouisiana | — | $875.93 |
| Metropolitan Boston, MAMassachusetts | — | $1,024.19 |
| Rest of MassachusettsMassachusetts | — | $949.03 |
| Baltimore area, MDMaryland | — | $973.87 |
| Rest of MarylandMaryland | — | $933.25 |
| Rest of MaineMaine | — | $878.40 |
| Southern Maine, MEMaine | — | $909.02 |
| Detroit, MIMichigan | — | $937.05 |
| Rest of MichiganMichigan | — | $894.22 |
| MinnesotaMinnesota | — | $912.81 |
| Metropolitan Kansas City, MOMissouri | — | $899.67 |
| Metropolitan St. Louis, MOMissouri | — | $906.14 |
| Rest of MissouriMissouri | — | $866.72 |
| MississippiMississippi | — | $857.58 |
| MontanaMontana | — | $926.47 |
| North CarolinaNorth Carolina | — | $884.58 |
| North DakotaNorth Dakota | — | $904.52 |
| NebraskaNebraska | — | $870.64 |
| New HampshireNew Hampshire | — | $939.39 |
| Northern New JerseyNew Jersey | — | $1,026.47 |
| Rest of New JerseyNew Jersey | — | $987.90 |
| New MexicoNew Mexico | — | $898.59 |
| NevadaNevada | — | $920.78 |
| NYC suburbs and Long Island, NYNew York | — | $1,068.56 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $995.68 |
| Queens, NYNew York | — | $1,050.18 |
| Rest of New YorkNew York | — | $894.20 |
| OhioOhio | — | $889.73 |
| OklahomaOklahoma | — | $872.63 |
| Portland, OROregon | — | $971.80 |
| Rest of OregonOregon | — | $913.82 |
| Metropolitan Philadelphia, PAPennsylvania | — | $959.52 |
| Rest of PennsylvaniaPennsylvania | — | $889.53 |
| Puerto RicoPuerto Rico | — | $930.68 |
| Rhode IslandRhode Island | — | $945.41 |
| South CarolinaSouth Carolina | — | $888.56 |
| South DakotaSouth Dakota | — | $901.92 |
| TennesseeTennessee | — | $870.56 |
| Austin, TXTexas | — | $947.98 |
| Beaumont, TXTexas | — | $885.52 |
| Brazoria, TXTexas | — | $918.25 |
| Dallas, TXTexas | — | $923.74 |
| Fort Worth, TXTexas | — | $919.95 |
| Galveston, TXTexas | — | $920.88 |
| Houston, TXTexas | — | $941.20 |
| Rest of TexasTexas | — | $901.19 |
| UtahUtah | — | $897.17 |
| VirginiaVirginia | — | $908.39 |
| Virgin Islands, VIUnited States Virgin Islands | — | $930.68 |
| Rest of WashingtonWashington | — | $946.30 |
| King County, WAWashington | — | $1,039.73 |
| WisconsinWisconsin | — | $882.97 |
| West VirginiaWest Virginia | — | $886.64 |
| WyomingWyoming | — | $916.90 |
66605 rates by state
Office rate range in each state. Select a state to see its payment localities.
Explore a state
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
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
How the 66605 rate is calculated
Each of 66605’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 · 66605
RVUs × geographic indexes × conversion factor
Work13.86
13.86 RVUs× 1.000 GPCI
Practice expense12.77
12.77 RVUs× 1.000 GPCI
Malpractice1.11
1.11 RVUs× 1.000 GPCI
Adjusted RVUs
27.7400
Conversion factor
$33.4009
Medicare rate
$926.54
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Vermont inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
7,380
- Code
- 66605
- Physician work
- 13.86
- Practice expense
- 12.77
- Malpractice
- 1.11
GPCI2026.csv
105
- Locality
- Vermont
- Physician work
- 1.000
- Practice expense
- 0.990
- Malpractice
- 0.506
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 13.86 | × 1.000 | 13.8600 |
| Practice expense | 12.77 | × 0.990 | 12.6423 |
| Malpractice | 1.11 | × 0.506 | 0.5617 |
| Total RVUs | 27.0640 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Vermont$903.96
Facility: (13.86 × 1 + 12.77 × 0.99 + 1.11 × 0.506) × $33.4009 = $903.96
Payment rules and modifiers for 66605
66605 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 66605
Iridectomy, corneoscleral section
| 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) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.70/0.20 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 66605
Iridectomy, corneoscleral section
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
66605 without 50 · national facility
$926.54
Iridectomy, corneoscleral section
66605-50 · Bilateral: 150%
$1,389.81
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).
How 66605 has changed in Vermont
66605 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $903.96 | RVU26D |
| 2026-07-01 | Not available in this setting | $903.96 | RVU26C |
| 2026-04-01 | Not available in this setting | $903.96 | RVU26B |
| 2026-01-01 | Not available in this setting | $903.96 | RVU26A |
| 2025-10-01 | Not available in this setting | $1,019.64 | RVU25D |
| 2025-07-01 | Not available in this setting | $1,019.64 | RVU25C |
| 2025-04-01 | Not available in this setting | $1,019.64 | RVU25B |
| 2025-01-01 | Not available in this setting | $1,019.64 | RVU25A |
| 2024-10-01 | Not available in this setting | $1,054.76 | RVU24D |
| 2024-07-01 | Not available in this setting | $1,054.76 | RVU24C |
| 2024-04-01 | Not available in this setting | $1,054.76 | RVU24B |
| 2024-03-09 | Not available in this setting | $1,054.76 | RVU24AR |
| 2024-01-01 | Not available in this setting | $1,037.54 | RVU24A |
| 2023-10-01 | Not available in this setting | $1,070.39 | RVU23D |
| 2023-07-01 | Not available in this setting | $1,070.39 | RVU23C |
| 2023-04-01 | Not available in this setting | $1,070.39 | RVU23B |
| 2023-01-01 | Not available in this setting | $1,070.39 | RVU23A |
| 2022-10-01 | Not available in this setting | $1,083.75 | RVU22D |
| 2022-07-01 | Not available in this setting | $1,083.75 | RVU22C |
| 2022-04-01 | Not available in this setting | $1,083.75 | RVU22B |
| 2022-01-01 | Not available in this setting | $1,083.75 | RVU22A |
| 2021-10-01 | Not available in this setting | $1,084.65 | RVU21D |
| 2021-07-01 | Not available in this setting | $1,084.65 | RVU21C |
| 2021-04-01 | Not available in this setting | $1,084.65 | RVU21B |
| 2021-01-01 | Not available in this setting | $1,084.65 | RVU21A |
| 2020-10-01 | Not available in this setting | $1,090.75 | RVU20D |
| 2020-07-01 | Not available in this setting | $1,090.75 | RVU20C |
| 2020-04-01 | Not available in this setting | $1,090.75 | RVU20B |
| 2020-01-01 | Not available in this setting | $1,090.75 | RVU20A |
| 2019-10-01 | Not available in this setting | $1,086.55 | RVU19D |
| 2019-07-01 | Not available in this setting | $1,086.55 | RVU19C |
| 2019-04-01 | Not available in this setting | $1,086.55 | RVU19B |
| 2019-01-01 | Not available in this setting | $1,086.55 | RVU19A |
| 2018-10-01 | Not available in this setting | $1,076.38 | RVU18D |
| 2018-07-01 | Not available in this setting | $1,076.38 | RVU18C |
| 2018-04-01 | Not available in this setting | $1,076.38 | RVU18B |
| 2018-01-01 | Not available in this setting | $1,076.38 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $1,066.44 | RVU17D |
| 2017-07-01 | Not available in this setting | $1,066.44 | RVU17C |
| 2017-04-01 | Not available in this setting | $1,066.44 | RVU17B |
| 2017-01-01 | Not available in this setting | $1,066.44 | RVU17A |
| 2016-10-01 | Not available in this setting | $1,061.52 | RVU16D |
| 2016-07-01 | Not available in this setting | $1,061.52 | RVU16C |
| 2016-04-01 | Not available in this setting | $1,061.52 | RVU16B |
| 2016-01-01 | Not available in this setting | $1,061.52 | RVU16A |
| 2015-10-01 | Not available in this setting | $1,063.91 | RVU15D |
| 2015-07-01 | Not available in this setting | $1,063.91 | RVU15C |
| 2015-04-01 | Not available in this setting | $1,058.62 | RVU15B |
| 2015-01-01 | Not available in this setting | $1,058.62 | RVU15A |
| 2014-10-01 | Not available in this setting | $1,060.13 | RVU14D |
| 2014-07-01 | Not available in this setting | $1,060.13 | RVU14C |
| 2014-04-01 | Not available in this setting | $1,060.13 | RVU14B |
| 2014-01-01 | Not available in this setting | $1,060.13 | RVU14A |
| 2013-10-01 | Not available in this setting | Rate data unavailable | RVU13D |
| 2013-07-01 | Not available in this setting | Rate data unavailable | RVU13C |
| 2013-04-01 | Not available in this setting | Rate data unavailable | RVU13B |
| 2013-01-01 | Not available in this setting | Rate data unavailable | RVU13AR |
Where the Vermont rate applies
Vermont is a Medicare payment area, not a city. Our Census mapping connects it to 180 cities and communities in Vermont. Some span more than one payment area; confirm with the service ZIP.
- Albany
- Alburgh
- Algiers
- Arlington
- Ascutney
- Bakersfield
- Barnet
- Barre
66605 billing questions
How is 66605 distinguished from 66600?
66605 describes iris removal through a corneoscleral section. Use 66600 when the operation includes removal of an iris lesion.
How does 66605 differ from 66625, 66630, and 66635?
Those codes describe glaucoma-related peripheral, sector, or total iridectomy procedures. Select among them based on the documented glaucoma procedure and extent rather than using 66605 for those services.
What documentation supports 66605?
The operative report should identify the iris tissue removed and document the corneoscleral-section approach. It should also distinguish the service from lesion removal or a glaucoma-specific iridectomy.
Does the 90-day global period include related follow-up?
Yes. The day-before preoperative visit and 90 days of related postoperative care are included in the global period.
How is bilateral 66605 reported for Medicare?
Use modifier 50 for a bilateral procedure; CMS pays the bilateral service at 150%.
Can an assistant or co-surgeon be paid for 66605?
Medicare does not pay an assistant at surgery for this code. Co-surgeons and team surgery are not permitted.
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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