No office rate
Both involve an aqueous shunt to an extraocular reservoir; choose 66180 when a graft is used to cover the tube and 66179 when the shunt is placed without a graft.
On this page
CMS RVU26D · Effective 2026-10-01
66180 in Redding
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$1003.32
Base rate per service
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.
Ophthalmology surgery
About 66180: Aqueous shunt with graft
Reports glaucoma drainage-device placement to an extraocular reservoir with a graft covering the tube, typically for glaucoma requiring surgical pressure control.
An ophthalmologist places a drainage tube into the eye and connects it to a reservoir positioned outside the eye to divert aqueous fluid and lower intraocular pressure. A graft covers the exposed tube. This operation is generally selected for glaucoma that needs a drainage implant, including cases in which other pressure-lowering treatment has not provided adequate control. It is commonly performed in a hospital outpatient department or ambulatory surgery center.
Report this code when the procedure includes both the aqueous shunt to an extraocular reservoir and the graft. The operative report should support the glaucoma indication, shunt placement, and graft use; a shunt placement without a graft is distinguished by 66179. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For bilateral surgery, modifier 50 is paid at 150%. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are reduced to 50%. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted.
CMS billing rules for 66180
- 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 not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU14.63 · 50%
- Practice expense (office) RVU13.26 · 46%
- Malpractice RVU1.17 · 4%
14.9K
Medicare services in 2024 · #1255 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.
66180 compared with similar codes
Office rates for Redding, from the same CMS release.
No office rate
66183 is for an anterior-segment drainage device without an extraocular reservoir. 66180 involves a shunt connected to an extraocular reservoir and includes a graft.
No office rate
66184 is for revision of an existing aqueous shunt, not initial shunt placement with a graft.
No office rate
66185 is for revision of an existing aqueous shunt with a graft; 66180 reports placement of a shunt with a graft.
The same code, a different location
How does Redding compare?
66180 across payment areas
Same release and payment basis · bars start at $0
Redding · This locality
Unavailable
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
No comparable rate is available in this setting.
Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.
The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.
Compare all 108 other payment areas
Madera
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Merced
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Modesto
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Napa
California · 66180
Office
Unavailable
Facility
$1123.03
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 66180
Office
Unavailable
Facility
$1050.19
No comparable office rate is available.
Rest Of California
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 66180
Office
Unavailable
Facility
$1016.20
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 66180
Office
Unavailable
Facility
$1042.28
No comparable office rate is available.
Salinas
California · 66180
Office
Unavailable
Facility
$1038.07
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 66180
Office
Unavailable
Facility
$1054.20
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 66180
Office
Unavailable
Facility
$1177.50
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 66180
Office
Unavailable
Facility
$1176.17
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 66180
Office
Unavailable
Facility
$1202.01
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 66180
Office
Unavailable
Facility
$1196.58
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 66180
Office
Unavailable
Facility
$1022.37
No comparable office rate is available.
Santa Cruz-Watsonville
California · 66180
Office
Unavailable
Facility
$1057.98
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 66180
Office
Unavailable
Facility
$1039.70
No comparable office rate is available.
Santa Rosa-Petaluma
California · 66180
Office
Unavailable
Facility
$1068.14
No comparable office rate is available.
Stockton
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Vallejo
California · 66180
Office
Unavailable
Facility
$1121.11
No comparable office rate is available.
Visalia
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Yuba City
California · 66180
Office
Unavailable
Facility
$1003.32
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 66180
Office
Unavailable
Facility
$1080.27
No comparable office rate is available.
Miami
Florida · 66180
Office
Unavailable
Facility
$1048.54
No comparable office rate is available.
Chicago
Illinois · 66180
Office
Unavailable
Facility
$1026.87
No comparable office rate is available.
Manhattan
New York · 66180
Office
Unavailable
Facility
$1096.55
No comparable office rate is available.
Alaska*
Alaska · 66180
Office
Unavailable
Facility
$1226.20
No comparable office rate is available.
Alabama
Alabama · 66180
Office
Unavailable
Facility
$898.31
No comparable office rate is available.
Arkansas
Arkansas · 66180
Office
Unavailable
Facility
$889.23
No comparable office rate is available.
Arizona
Arizona · 66180
Office
Unavailable
Facility
$951.27
No comparable office rate is available.
Colorado
Colorado · 66180
Office
Unavailable
Facility
$996.28
No comparable office rate is available.
Connecticut
Connecticut · 66180
Office
Unavailable
Facility
$1022.71
No comparable office rate is available.
Delaware
Delaware · 66180
Office
Unavailable
Facility
$963.81
No comparable office rate is available.
Fort Lauderdale
Florida · 66180
Office
Unavailable
Facility
$1007.96
No comparable office rate is available.
Rest Of Florida
Florida · 66180
Office
Unavailable
Facility
$970.80
No comparable office rate is available.
Atlanta
Georgia · 66180
Office
Unavailable
Facility
$987.04
No comparable office rate is available.
Rest Of Georgia
Georgia · 66180
Office
Unavailable
Facility
$930.30
No comparable office rate is available.
Hawaii, Guam
Hawaii · 66180
Office
Unavailable
Facility
$1014.85
No comparable office rate is available.
Iowa
Iowa · 66180
Office
Unavailable
Facility
$909.42
No comparable office rate is available.
Idaho
Idaho · 66180
Office
Unavailable
Facility
$914.60
No comparable office rate is available.
East St. Louis
Illinois · 66180
Office
Unavailable
Facility
$974.82
No comparable office rate is available.
Rest Of Illinois
Illinois · 66180
Office
Unavailable
Facility
$954.10
No comparable office rate is available.
Suburban Chicago
Illinois · 66180
Office
Unavailable
Facility
$1016.18
No comparable office rate is available.
Indiana
Indiana · 66180
Office
Unavailable
Facility
$918.21
No comparable office rate is available.
Kansas
Kansas · 66180
Office
Unavailable
Facility
$908.73
No comparable office rate is available.
Kentucky
Kentucky · 66180
Office
Unavailable
Facility
$918.15
No comparable office rate is available.
New Orleans
Louisiana · 66180
Office
Unavailable
Facility
$949.81
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 66180
Office
Unavailable
Facility
$918.06
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 66180
Office
Unavailable
Facility
$1072.29
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 66180
Office
Unavailable
Facility
$993.99
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 66180
Office
Unavailable
Facility
$1020.04
No comparable office rate is available.
Rest Of Maryland
Maryland · 66180
Office
Unavailable
Facility
$977.63
No comparable office rate is available.
Rest Of Maine
Maine · 66180
Office
Unavailable
Facility
$920.43
No comparable office rate is available.
Southern Maine
Maine · 66180
Office
Unavailable
Facility
$952.22
No comparable office rate is available.
Detroit
Michigan · 66180
Office
Unavailable
Facility
$981.94
No comparable office rate is available.
Rest Of Michigan
Michigan · 66180
Office
Unavailable
Facility
$937.14
No comparable office rate is available.
Minnesota
Minnesota · 66180
Office
Unavailable
Facility
$955.96
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 66180
Office
Unavailable
Facility
$942.71
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 66180
Office
Unavailable
Facility
$949.45
No comparable office rate is available.
Rest Of Missouri
Missouri · 66180
Office
Unavailable
Facility
$908.49
No comparable office rate is available.
Mississippi
Mississippi · 66180
Office
Unavailable
Facility
$898.87
No comparable office rate is available.
Montana**
Montana · 66180
Office
Unavailable
Facility
$970.55
No comparable office rate is available.
North Carolina
North Carolina · 66180
Office
Unavailable
Facility
$926.85
No comparable office rate is available.
North Dakota**
North Dakota · 66180
Office
Unavailable
Facility
$947.42
No comparable office rate is available.
Nebraska
Nebraska · 66180
Office
Unavailable
Facility
$912.22
No comparable office rate is available.
New Hampshire
New Hampshire · 66180
Office
Unavailable
Facility
$983.90
No comparable office rate is available.
Northern Nj
New Jersey · 66180
Office
Unavailable
Facility
$1074.94
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 66180
Office
Unavailable
Facility
$1034.71
No comparable office rate is available.
New Mexico
New Mexico · 66180
Office
Unavailable
Facility
$941.72
No comparable office rate is available.
Nevada**
Nevada · 66180
Office
Unavailable
Facility
$964.55
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 66180
Office
Unavailable
Facility
$1119.10
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 66180
Office
Unavailable
Facility
$1042.90
No comparable office rate is available.
Queens
New York · 66180
Office
Unavailable
Facility
$1099.78
No comparable office rate is available.
Rest Of New York
New York · 66180
Office
Unavailable
Facility
$936.88
No comparable office rate is available.
Ohio
Ohio · 66180
Office
Unavailable
Facility
$932.41
No comparable office rate is available.
Oklahoma
Oklahoma · 66180
Office
Unavailable
Facility
$914.53
No comparable office rate is available.
Portland
Oregon · 66180
Office
Unavailable
Facility
$1017.61
No comparable office rate is available.
Rest Of Oregon
Oregon · 66180
Office
Unavailable
Facility
$957.25
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 66180
Office
Unavailable
Facility
$1005.13
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 66180
Office
Unavailable
Facility
$932.16
No comparable office rate is available.
Puerto Rico
Puerto Rico · 66180
Office
Unavailable
Facility
$974.92
No comparable office rate is available.
Rhode Island
Rhode Island · 66180
Office
Unavailable
Facility
$990.31
No comparable office rate is available.
South Carolina
South Carolina · 66180
Office
Unavailable
Facility
$931.11
No comparable office rate is available.
South Dakota**
South Dakota · 66180
Office
Unavailable
Facility
$944.68
No comparable office rate is available.
Tennessee
Tennessee · 66180
Office
Unavailable
Facility
$912.23
No comparable office rate is available.
Austin
Texas · 66180
Office
Unavailable
Facility
$992.84
No comparable office rate is available.
Beaumont
Texas · 66180
Office
Unavailable
Facility
$927.99
No comparable office rate is available.
Brazoria
Texas · 66180
Office
Unavailable
Facility
$961.96
No comparable office rate is available.
Dallas
Texas · 66180
Office
Unavailable
Facility
$967.71
No comparable office rate is available.
Fort Worth
Texas · 66180
Office
Unavailable
Facility
$963.79
No comparable office rate is available.
Galveston
Texas · 66180
Office
Unavailable
Facility
$964.72
No comparable office rate is available.
Houston
Texas · 66180
Office
Unavailable
Facility
$986.13
No comparable office rate is available.
Rest Of Texas
Texas · 66180
Office
Unavailable
Facility
$944.25
No comparable office rate is available.
Utah
Utah · 66180
Office
Unavailable
Facility
$940.07
No comparable office rate is available.
Virginia
Virginia · 66180
Office
Unavailable
Facility
$951.61
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 66180
Office
Unavailable
Facility
$974.92
No comparable office rate is available.
Vermont
Vermont · 66180
Office
Unavailable
Facility
$946.90
No comparable office rate is available.
Rest Of Washington
Washington · 66180
Office
Unavailable
Facility
$991.12
No comparable office rate is available.
Seattle (King Cnty)
Washington · 66180
Office
Unavailable
Facility
$1088.45
No comparable office rate is available.
Wisconsin
Wisconsin · 66180
Office
Unavailable
Facility
$924.99
No comparable office rate is available.
West Virginia
West Virginia · 66180
Office
Unavailable
Facility
$929.45
No comparable office rate is available.
Wyoming**
Wyoming · 66180
Office
Unavailable
Facility
$960.47
No comparable office rate is available.
See how rates vary across the country
66180 · 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.
View all state and territory rates as a table
| State / territory | 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 |
Where does this rate apply?
Redding is a Medicare payment area. Our Census mapping connects it to 32 cities and communities in California, including the examples shown here.
Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 66180 in Redding. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$1103.65
$1003.32 × 110% = $1103.65
A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.
Working with a whole code list?
Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.
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 66180 in Redding.
PPRRVU2026_Oct_nonQPP.csv
7,371
- Code
- 66180
- Physician work
- 14.63
- Practice expense
- 13.26
- Malpractice
- 1.17
GPCI2026.csv
19
- Locality
- Redding
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 14.63 | × 1.017 | 14.8787 |
| Practice expense | 13.26 | × 1.096 | 14.5330 |
| Malpractice | 1.17 | × 0.536 | 0.6271 |
| Total RVUs | 30.0388 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Redding$1003.32
Open 66180 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 14.63 | 1.017 |
| Practice expense | 13.26 | 1.096 |
| Malpractice | 1.17 | 0.536 |
(14.63 × 1.017 + 13.26 × 1.096 + 1.17 × 0.536) × $33.4009 = $1003.32
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.
How this rate has changed
66180 · 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
Explore release dates and calculate this code in an earlier period →
Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.
Inspect every release and its CMS source
| Effective from | Office / nonfacility | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $1003.32 | RVU26D |
| 2026-07-01 | Not available in this setting | $1003.32 | RVU26C |
| 2026-04-01 | Not available in this setting | $1003.32 | RVU26B |
| 2026-01-01 | Not available in this setting | $1003.32 | RVU26A |
| 2025-10-01 | Not available in this setting | $1134.89 | RVU25D |
| 2025-07-01 | Not available in this setting | $1134.89 | RVU25C |
| 2025-04-01 | Not available in this setting | $1134.89 | RVU25B |
| 2025-01-01 | Not available in this setting | $1134.89 | RVU25A |
66180 billing questions
How does 66180 differ from 66179?
66180 describes aqueous shunt placement with a graft covering the tube. Use 66179 for the corresponding shunt procedure without a graft.
Is the graft separately reported?
The graft is included in 66180 when used as part of the shunt operation. The operative report should document its use and placement.
When is 66183 a better fit?
66183 describes placement of an anterior-segment drainage device without an extraocular reservoir. 66180 is for a shunt connected to an extraocular reservoir with a graft.
How should bilateral surgery be reported?
Report bilateral surgery with modifier 50. CMS pays this bilateral procedure at 150%.
What postoperative care is included?
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.
7,36866174,,Trluml dil aq o/f can w/o st,A,,7.43,8.17,NA,8.17,,0.58,16.18,16.18,0,090,0.10,0.70,0.20,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,36966175,,Trluml dil aq o/f can w/st,A,,9.11,8.74,NA,8.74,,0.72,18.57,18.57,0,090,0.10,0.70,0.20,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,37066179,,Aqueous shunt eye w/o graft,A,,13.65,12.91,NA,12.91,,1.09,27.65,27.65,0,090,0.10,0.70,0.20,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,37166180,,Aqueous shunt eye w/graft,A,,14.63,13.26,NA,13.26,,1.17,29.06,29.06,0,090,0.10,0.70,0.20,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,37266183,,Insert ant drainage device,A,,12.87,12.48,NA,12.48,,1.04,26.39,26.39,0,090,0.10,0.80,0.10,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,37366184,,Revision of aqueous shunt,A,,9.34,10.47,NA,10.47,,0.75,20.56,20.56,0,090,0.10,0.70,0.20,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,37466185,,Revise aqueous shunt eye,A,,10.32,10.81,NA,10.81,,0.83,21.96,21.96,0,090,0.10,0.70,0.20,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1601112,CA,60,MODESTO,1.017,1.096,0.536
1701112,CA,51,NAPA,1.063,1.318,0.508
1801182,CA,17,OXNARD-THOUSAND OAKS-VENTURA,1.028,1.182,0.623
1901112,CA,61,REDDING,1.017,1.096,0.536
2001112,CA,62,RIVERSIDE-SAN BERNARDINO-ONTARIO,1.018,1.096,0.853
2101112,CA,63,SACRAMENTO-ROSEVILLE-FOLSOM,1.036,1.163,0.536
2201112,CA,64,SALINAS,1.031,1.159,0.536