Use 66720 when the ciliary body is treated with a cryoprobe. Code 66700 represents diathermy treatment.
On this page
CMS RVU26D · Effective 2026-10-01
66720 Ciliary body destruction Medicare reimbursement rates
Report cyclocryotherapy when an ophthalmologist freezes ciliary body tissue to reduce aqueous production, typically to manage glaucoma inadequately controlled by other treatment. Compare 66720 office and facility rates across CMS payment localities.
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 66720?
The service location and office or facility setting determine which base rate applies. These are the supported base rates for the 109 payment areas shown below, using the same CMS release.
Office / nonfacility
$424.40–$620.43
109 of 109 localities have a supported rate.
Lowest: Arkansas
Highest: San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
A spread of $196.03 per service.
Facility setting
$328.28–$459.08
109 of 109 localities have a supported rate.
Lowest: Arkansas
Highest: San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
A spread of $130.80 per service.
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.
Where 66720 pays more and less
109 payment localities
$424.40 to $620.43
Ophthalmic surgery
About 66720: Ciliary body cryotherapy for glaucoma
Report cyclocryotherapy when an ophthalmologist freezes ciliary body tissue to reduce aqueous production, typically to manage glaucoma inadequately controlled by other treatment.
An ophthalmologist uses a cryoprobe applied externally over the ciliary body to freeze targeted tissue and reduce aqueous humor production. This cyclocryotherapy procedure is used most often for glaucoma that remains difficult to control, including situations in which conventional pressure-lowering treatment has not achieved adequate control. It is generally performed as an eye surgery in an operating room or ambulatory surgery setting.
Choose this code for the cryotherapy technique, not for ciliary body treatment performed with diathermy or laser. The operative report should identify the treated eye, the ciliary body cryotherapy performed, and the clinical indication. CMS 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% reduction. For bilateral treatment reported with modifier 50, CMS pays 150%. Assistant-at-surgery payment is restricted; co-surgeons and team surgery are not permitted.
CMS billing rules for 66720
- 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 RVU4.63 · 33%
- Practice expense (office) RVU9.18 · 65%
- Malpractice RVU0.37 · 3%
115
Medicare services in 2024 · #4774 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.
66720 compared with similar codes
Office rate ranges across all CMS payment localities, from the same CMS release.
66710 is for transscleral cyclophotocoagulation using laser energy; 66720 is for cryotherapy.
66711 represents endoscopic cyclophotocoagulation. Select 66720 when the documented ciliary body treatment is cyclocryotherapy.
See how rates vary across the country
66720 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
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.
$424.40
$565.33
Color shows the midpoint of each state’s locality range.
View all state and territory rates as a table
| State / territory | Rate range | Localities |
|---|---|---|
| AK | $565.33 | 1 |
| AL | $429.93 | 1 |
| AR | $424.40 | 1 |
| AZ | $462.34 | 1 |
| CA | $499.96–$620.43 | 29 |
| CO | $492.40 | 1 |
| CT | $502.92 | 1 |
| DC | $537.95 | 1 |
| DE | $469.47 | 1 |
| FL | $466.35–$505.09 | 3 |
| GA | $442.88–$481.48 | 2 |
| GU | $510.43 | 1 |
| HI | $510.43 | 1 |
| IA | $440.11 | 1 |
| ID | $442.58 | 1 |
| IL | $453.91–$492.53 | 4 |
| IN | $444.89 | 1 |
| KS | $438.06 | 1 |
| KY | $438.54 | 1 |
| LA | $437.84–$457.21 | 2 |
| MA | $489.84–$538.09 | 2 |
| MD | $477.84–$537.95 | 3 |
| ME | $444.42–$466.30 | 2 |
| MI | $448.54–$471.37 | 2 |
| MN | $473.82 | 1 |
| MO | $430.99–$458.93 | 3 |
| MS | $427.78 | 1 |
| MT | $473.60 | 1 |
| NC | $448.62 | 1 |
| ND | $466.28 | 1 |
| NE | $442.33 | 1 |
| NH | $484.65 | 1 |
| NJ | $509.22–$533.27 | 2 |
| NM | $450.66 | 1 |
| NV | $471.87 | 1 |
| NY | $454.62–$552.06 | 5 |
| OH | $447.05 | 1 |
| OK | $438.06 | 1 |
| OR | $468.73–$506.97 | 2 |
| PA | $447.80–$491.36 | 2 |
| PR | $476.81 | 1 |
| RI | $485.35 | 1 |
| SC | $448.47 | 1 |
| SD | $465.42 | 1 |
| TN | $440.00 | 1 |
| TX | $445.15–$490.31 | 8 |
| UT | $453.97 | 1 |
| VA | $464.78–$537.95 | 2 |
| VI | $476.81 | 1 |
| VT | $464.45 | 1 |
| WA | $488.93–$548.70 | 2 |
| WI | $452.19 | 1 |
| WV | $438.78 | 1 |
| WY | $470.41 | 1 |
Compare 66720 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.
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | Office $429.93 | Facility $332.03 |
| Alaska* | Office $565.33 | Facility $446.16 |
| Arizona | Office $462.34 | Facility $353.92 |
| Arkansas | Office $424.40 | Facility $328.28 |
| Atlanta | Office $481.48 | Facility $367.80 |
| Austin | Office $490.31 | Facility $371.93 |
| Bakersfield | Office $501.17 | Facility $378.53 |
| Baltimore/Surr. Cntys | Office $501.41 | Facility $381.35 |
| Beaumont | Office $445.15 | Facility $343.33 |
| Brazoria | Office $469.38 | Facility $358.50 |
| Chicago | Office $492.24 | Facility $379.79 |
| Chico | Office $499.96 | Facility $377.32 |
| Colorado | Office $492.40 | Facility $373.34 |
| Connecticut | Office $502.92 | Facility $382.41 |
| Dallas | Office $472.04 | Facility $360.59 |
| Dc + Md/Va Suburbs | Office $537.95 | Facility $406.14 |
| Delaware | Office $469.47 | Facility $358.92 |
| Detroit | Office $471.37 | Facility $363.39 |
| East St. Louis | Office $461.63 | Facility $358.68 |
| El Centro | Office $500.02 | Facility $377.38 |
| Fort Lauderdale | Office $487.60 | Facility $374.25 |
| Fort Worth | Office $469.13 | Facility $358.80 |
| Fresno | Office $499.96 | Facility $377.32 |
| Galveston | Office $470.59 | Facility $359.48 |
| Hanford-Corcoran | Office $499.96 | Facility $377.32 |
| Hawaii, Guam | Office $510.43 | Facility $383.21 |
| Houston | Office $477.36 | Facility $366.25 |
| Idaho | Office $442.58 | Facility $339.64 |
| Indiana | Office $444.89 | Facility $341.16 |
| Iowa | Office $440.11 | Facility $337.73 |
| Kansas | Office $438.06 | Facility $336.91 |
| Kentucky | Office $438.54 | Facility $339.07 |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | Office $531.92 | Facility $399.55 |
| Madera | Office $499.96 | Facility $377.32 |
| Manhattan | Office $540.44 | Facility $410.42 |
| Merced | Office $499.96 | Facility $377.32 |
| Metropolitan Boston | Office $538.09 | Facility $404.49 |
| Metropolitan Kansas City | Office $454.64 | Facility $349.57 |
| Metropolitan Philadelphia | Office $491.36 | Facility $374.88 |
| Metropolitan St. Louis | Office $458.93 | Facility $352.41 |
| Miami | Office $505.09 | Facility $388.61 |
| Minnesota | Office $473.82 | Facility $358.68 |
| Mississippi | Office $427.78 | Facility $331.44 |
| Modesto | Office $499.96 | Facility $377.32 |
| Montana** | Office $473.60 | Facility $361.71 |
| Napa | Office $574.79 | Facility $427.32 |
| Nebraska | Office $442.33 | Facility $339.05 |
| Nevada** | Office $471.87 | Facility $359.86 |
| New Hampshire | Office $484.65 | Facility $368.17 |
| New Mexico | Office $450.66 | Facility $348.05 |
| New Orleans | Office $457.21 | Facility $351.92 |
| North Carolina | Office $448.62 | Facility $344.22 |
| North Dakota** | Office $466.28 | Facility $354.39 |
| Northern Nj | Office $533.27 | Facility $403.47 |
| Nyc Suburbs/Long Island | Office $552.06 | Facility $419.02 |
| Ohio | Office $447.05 | Facility $344.89 |
| Oklahoma | Office $438.06 | Facility $338.14 |
| Oxnard-Thousand Oaks-Ventura | Office $529.10 | Facility $396.84 |
| Portland | Office $506.97 | Facility $382.66 |
| Poughkpsie/N Nyc Suburbs | Office $512.31 | Facility $389.79 |
| Puerto Rico | Office $476.81 | Facility $363.69 |
| Queens | Office $544.79 | Facility $412.53 |
| Redding | Office $499.96 | Facility $377.32 |
| Rest Of California | Office $499.96 | Facility $377.32 |
| Rest Of Florida | Office $466.35 | Facility $359.38 |
| Rest Of Georgia | Office $442.88 | Facility $343.07 |
| Rest Of Illinois | Office $453.91 | Facility $351.75 |
| Rest Of Louisiana | Office $437.84 | Facility $338.82 |
| Rest Of Maine | Office $444.42 | Facility $341.48 |
| Rest Of Maryland | Office $477.84 | Facility $364.60 |
| Rest Of Massachusetts | Office $489.84 | Facility $372.02 |
| Rest Of Michigan | Office $448.54 | Facility $346.38 |
| Rest Of Missouri | Office $430.99 | Facility $334.54 |
| Rest Of New Jersey | Office $509.22 | Facility $387.03 |
| Rest Of New York | Office $454.62 | Facility $348.32 |
| Rest Of Oregon | Office $468.73 | Facility $357.28 |
| Rest Of Pennsylvania | Office $447.80 | Facility $345.08 |
| Rest Of Texas | Office $456.79 | Facility $350.60 |
| Rest Of Washington | Office $488.93 | Facility $371.11 |
| Rhode Island | Office $485.35 | Facility $369.76 |
| Riverside-San Bernardino-Ontario | Office $504.03 | Facility $381.39 |
| Sacramento-Roseville-Folsom | Office $523.44 | Facility $393.31 |
| Salinas | Office $521.44 | Facility $391.75 |
| San Diego-Chula Vista-Carlsbad | Office $532.70 | Facility $398.88 |
| San Francisco-Oakland-Berkeley (Marin Cnty) | Office $607.34 | Facility $449.58 |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | Office $606.92 | Facility $449.16 |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | Office $620.43 | Facility $459.08 |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | Office $618.71 | Facility $457.36 |
| San Luis Obispo-Paso Robles | Office $513.14 | Facility $385.69 |
| Santa Cruz-Watsonville | Office $537.06 | Facility $401.11 |
| Santa Maria-Santa Barbara | Office $523.12 | Facility $392.65 |
| Santa Rosa-Petaluma | Office $542.44 | Facility $405.03 |
| Seattle (King Cnty) | Office $548.70 | Facility $411.41 |
| South Carolina | Office $448.47 | Facility $345.08 |
| South Dakota** | Office $465.42 | Facility $353.53 |
| Southern Maine | Office $466.30 | Facility $355.42 |
| Stockton | Office $499.96 | Facility $377.32 |
| Suburban Chicago | Office $492.53 | Facility $377.61 |
| Tennessee | Office $440.00 | Facility $338.29 |
| Utah | Office $453.97 | Facility $348.79 |
| Vallejo | Office $574.19 | Facility $426.71 |
| Vermont | Office $464.45 | Facility $353.68 |
| Virgin Islands | Office $476.81 | Facility $363.69 |
| Virginia | Office $464.78 | Facility $354.79 |
| Visalia | Office $499.96 | Facility $377.32 |
| West Virginia | Office $438.78 | Facility $341.55 |
| Wisconsin | Office $452.19 | Facility $345.00 |
| Wyoming** | Office $470.41 | Facility $358.52 |
| Yuba City | Office $499.96 | Facility $377.32 |
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66720 billing questions
How is 66720 different from transscleral cyclophotocoagulation?
66720 represents ciliary body destruction by freezing with a cryoprobe. Transscleral cyclophotocoagulation uses laser energy and is reported with 66710.
What should the operative note document?
Document the glaucoma indication, the cryotherapy technique, and the eye treated. The record should make clear that ciliary body tissue was treated with cryotherapy rather than diathermy or laser.
Can both eyes be reported on the same date?
For bilateral treatment, report modifier 50; CMS pays the bilateral procedure at 150%. The operative documentation should support treatment of both eyes.
How does the 90-day global period affect postoperative billing?
The day-before preoperative visit and 90 days of related postoperative care are included in the global period.
Can an assistant surgeon or co-surgeon be billed?
CMS does not pay an assistant at surgery for this code. Co-surgeons and team surgery are not permitted.
What happens when another procedure is performed in the same session?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple procedure reduction, with payment 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.
