CPT code 66720: Ciliary body destruction, cyclocryotherapy2026 Medicare rate & RVUs
Report cyclocryotherapy when an ophthalmologist freezes ciliary body tissue to reduce aqueous production, typically to manage glaucoma inadequately controlled by other treatment.
Medicare pays $473.62 for 66720 nationally in the office and $361.73 in a hospital or facility. Local office rates run $424.40–$620.43.
Medicare rate · 66720
Ciliary body destruction, cyclocryotherapy
- Work RVUs
- 4.63
- Total RVUs
- 14.18
- Global days
- 090
National rate · 2026
$473.62
Office setting, before claim adjustments.
See every locality for 66720 →Billed by an NP, PA or therapist? →
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 10 sections
What 66720 covers
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.
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.
Where 66720 pays more and less
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
109 payment localities
$424.40 to $620.43
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | $429.93 | $332.03 |
| Alaska | $565.33 | $446.16 |
| Arizona | $462.34 | $353.92 |
| Arkansas | $424.40 | $328.28 |
| Atlanta, GA | $481.48 | $367.80 |
| Austin, TX | $490.31 | $371.93 |
| Bakersfield, CA | $501.17 | $378.53 |
| Baltimore area, MD | $501.41 | $381.35 |
| Beaumont, TX | $445.15 | $343.33 |
| Brazoria, TX | $469.38 | $358.50 |
| Chicago, IL | $492.24 | $379.79 |
| Chico, CA | $499.96 | $377.32 |
| Colorado | $492.40 | $373.34 |
| Connecticut | $502.92 | $382.41 |
| Dallas, TX | $472.04 | $360.59 |
| Delaware | $469.47 | $358.92 |
| Detroit, MI | $471.37 | $363.39 |
| East St. Louis, IL | $461.63 | $358.68 |
| El Centro, CA | $500.02 | $377.38 |
| Fort Lauderdale, FL | $487.60 | $374.25 |
| Fort Worth, TX | $469.13 | $358.80 |
| Fresno, CA | $499.96 | $377.32 |
| Galveston, TX | $470.59 | $359.48 |
| Hanford, CA | $499.96 | $377.32 |
| Hawaii, Guam, HI | $510.43 | $383.21 |
| Houston, TX | $477.36 | $366.25 |
| Idaho | $442.58 | $339.64 |
| Indiana | $444.89 | $341.16 |
| Iowa | $440.11 | $337.73 |
| Kansas | $438.06 | $336.91 |
| Kentucky | $438.54 | $339.07 |
| King County, WA | $548.70 | $411.41 |
| Los Angeles, CA | $531.92 | $399.55 |
| Madera, CA | $499.96 | $377.32 |
| Manhattan, NY | $540.44 | $410.42 |
| Marin County, CA | $607.34 | $449.58 |
| Merced, CA | $499.96 | $377.32 |
| Metropolitan Boston, MA | $538.09 | $404.49 |
| Metropolitan Kansas City, MO | $454.64 | $349.57 |
| Metropolitan Philadelphia, PA | $491.36 | $374.88 |
| Metropolitan St. Louis, MO | $458.93 | $352.41 |
| Miami, FL | $505.09 | $388.61 |
| Minnesota | $473.82 | $358.68 |
| Mississippi | $427.78 | $331.44 |
| Modesto, CA | $499.96 | $377.32 |
| Montana | $473.60 | $361.71 |
| Napa, CA | $574.79 | $427.32 |
| Nebraska | $442.33 | $339.05 |
| Nevada | $471.87 | $359.86 |
| New Hampshire | $484.65 | $368.17 |
| New Mexico | $450.66 | $348.05 |
| New Orleans, LA | $457.21 | $351.92 |
| North Carolina | $448.62 | $344.22 |
| North Dakota | $466.28 | $354.39 |
| Northern New Jersey | $533.27 | $403.47 |
| NYC suburbs and Long Island, NY | $552.06 | $419.02 |
| Ohio | $447.05 | $344.89 |
| Oklahoma | $438.06 | $338.14 |
| Oxnard, CA | $529.10 | $396.84 |
| Portland, OR | $506.97 | $382.66 |
| Poughkeepsie and northern NYC suburbs, NY | $512.31 | $389.79 |
| Puerto Rico | $476.81 | $363.69 |
| Queens, NY | $544.79 | $412.53 |
| Redding, CA | $499.96 | $377.32 |
| Rest of California | $499.96 | $377.32 |
| Rest of Florida | $466.35 | $359.38 |
| Rest of Georgia | $442.88 | $343.07 |
| Rest of Illinois | $453.91 | $351.75 |
| Rest of Louisiana | $437.84 | $338.82 |
| Rest of Maine | $444.42 | $341.48 |
| Rest of Maryland | $477.84 | $364.60 |
| Rest of Massachusetts | $489.84 | $372.02 |
| Rest of Michigan | $448.54 | $346.38 |
| Rest of Missouri | $430.99 | $334.54 |
| Rest of New Jersey | $509.22 | $387.03 |
| Rest of New York | $454.62 | $348.32 |
| Rest of Oregon | $468.73 | $357.28 |
| Rest of Pennsylvania | $447.80 | $345.08 |
| Rest of Texas | $456.79 | $350.60 |
| Rest of Washington | $488.93 | $371.11 |
| Rhode Island | $485.35 | $369.76 |
| Riverside, CA | $504.03 | $381.39 |
| Sacramento, CA | $523.44 | $393.31 |
| Salinas, CA | $521.44 | $391.75 |
| San Benito County, CA | $620.43 | $459.08 |
| San Diego, CA | $532.70 | $398.88 |
| San Francisco, CA | $606.92 | $449.16 |
| San Luis Obispo, CA | $513.14 | $385.69 |
| Santa Clara County, CA | $618.71 | $457.36 |
| Santa Cruz, CA | $537.06 | $401.11 |
| Santa Maria, CA | $523.12 | $392.65 |
| Santa Rosa, CA | $542.44 | $405.03 |
| South Carolina | $448.47 | $345.08 |
| South Dakota | $465.42 | $353.53 |
| Southern Maine, ME | $466.30 | $355.42 |
| Stockton, CA | $499.96 | $377.32 |
| Suburban Chicago, IL | $492.53 | $377.61 |
| Tennessee | $440.00 | $338.29 |
| Utah | $453.97 | $348.79 |
| Vallejo, CA | $574.19 | $426.71 |
| Vermont | $464.45 | $353.68 |
| Virgin Islands, VI | $476.81 | $363.69 |
| Virginia | $464.78 | $354.79 |
| Visalia, CA | $499.96 | $377.32 |
| Washington, DC area | $537.95 | $406.14 |
| West Virginia | $438.78 | $341.55 |
| Wisconsin | $452.19 | $345.00 |
| Wyoming | $470.41 | $358.52 |
| Yuba City, CA | $499.96 | $377.32 |
66720 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.
$424.40
$565.33
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office 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 |
How the 66720 rate is calculated
Each of 66720’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 · 66720
RVUs × geographic indexes × conversion factor
Work4.63
4.63 RVUs× 1.000 GPCI
Practice expense9.18
9.18 RVUs× 1.000 GPCI
Malpractice0.37
0.37 RVUs× 1.000 GPCI
Adjusted RVUs
14.1800
Conversion factor
$33.4009
Medicare rate
$473.62
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 66720
66720 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 66720
Ciliary body destruction, cyclocryotherapy
| 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 · 66720
Ciliary body destruction, cyclocryotherapy
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
66720 without 50 · national office
$473.62
Ciliary body destruction, cyclocryotherapy
66720-50 · Bilateral: 150%
$710.43
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).
66720 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 66700Ciliary body destructionDiathermy
- Use 66720 when the ciliary body is treated with a cryoprobe. Code 66700 represents diathermy treatment.
- 66710Ciliary body treatmentTransscleral laser
- 66710 is for transscleral cyclophotocoagulation using laser energy; 66720 is for cryotherapy.
- 66711Endoscopic cyclophotocoagulationCiliary body destruction
- 66711 represents endoscopic cyclophotocoagulation. Select 66720 when the documented ciliary body treatment is cyclocryotherapy.
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 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
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