Choose 66625 for an iridectomy performed to treat glaucoma. Code 66630 is for a non-glaucoma indication.
On this page
CMS RVU26D · Effective 2026-10-01
66630 in Modesto
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$503.79
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.
Ophthalmic surgery
About 66630: Non-glaucoma surgical iridectomy
Reports surgical removal of iris tissue through a corneoscleral incision when the documented indication is other than glaucoma or removal of an iris lesion.
An ophthalmologist removes a portion of iris through a corneoscleral incision for a documented indication other than glaucoma. The operation is performed in an operating room. The operative report should identify the non-glaucoma reason for surgery, the eye treated, the approach, and the iris tissue removed. A lesion-directed procedure is distinguished by its specific lesion-removal purpose.
Report 66630 when the procedure and indication match this non-glaucoma iridectomy, rather than a glaucoma-directed or lesion-removal code. CMS assigns a 90-day major-surgery global period, including the day-before preoperative visit and 90 days of related postoperative care. When other procedures are performed in the same session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. CMS does not pay an assistant at surgery and does not permit co-surgeons or team surgery for this code.
CMS billing rules for 66630
- 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 RVU7.10 · 49%
- Practice expense (office) RVU6.90 · 47%
- Malpractice RVU0.56 · 4%
43
Medicare services in 2024 · #5457 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.
66630 compared with similar codes
Office rates for Modesto, from the same CMS release.
Choose 66600 when the operation removes an iris lesion. Code 66630 is for a non-glaucoma iridectomy not directed at lesion removal.
Code 66680 describes repair involving the iris and ciliary body; 66630 removes iris tissue instead of reconstructing those structures.
The same code, a different location
How does Modesto compare?
66630 across payment areas
Same release and payment basis · bars start at $0
Modesto · 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 · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Merced
California · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Napa
California · 66630
Office
Unavailable
Facility
$565.34
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 66630
Office
Unavailable
Facility
$527.85
No comparable office rate is available.
Redding
California · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Rest Of California
California · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 66630
Office
Unavailable
Facility
$509.96
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 66630
Office
Unavailable
Facility
$523.74
No comparable office rate is available.
Salinas
California · 66630
Office
Unavailable
Facility
$521.63
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 66630
Office
Unavailable
Facility
$530.04
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 66630
Office
Unavailable
Facility
$593.22
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 66630
Office
Unavailable
Facility
$592.58
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 66630
Office
Unavailable
Facility
$605.59
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 66630
Office
Unavailable
Facility
$602.99
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 66630
Office
Unavailable
Facility
$513.70
No comparable office rate is available.
Santa Cruz-Watsonville
California · 66630
Office
Unavailable
Facility
$532.17
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 66630
Office
Unavailable
Facility
$522.54
No comparable office rate is available.
Santa Rosa-Petaluma
California · 66630
Office
Unavailable
Facility
$537.30
No comparable office rate is available.
Stockton
California · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Vallejo
California · 66630
Office
Unavailable
Facility
$564.43
No comparable office rate is available.
Visalia
California · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Yuba City
California · 66630
Office
Unavailable
Facility
$503.79
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 66630
Office
Unavailable
Facility
$542.26
No comparable office rate is available.
Miami
Florida · 66630
Office
Unavailable
Facility
$524.37
No comparable office rate is available.
Chicago
Illinois · 66630
Office
Unavailable
Facility
$513.35
No comparable office rate is available.
Manhattan
New York · 66630
Office
Unavailable
Facility
$549.79
No comparable office rate is available.
Alaska*
Alaska · 66630
Office
Unavailable
Facility
$611.47
No comparable office rate is available.
Alabama
Alabama · 66630
Office
Unavailable
Facility
$449.39
No comparable office rate is available.
Arkansas
Arkansas · 66630
Office
Unavailable
Facility
$444.75
No comparable office rate is available.
Arizona
Arizona · 66630
Office
Unavailable
Facility
$476.48
No comparable office rate is available.
Colorado
Colorado · 66630
Office
Unavailable
Facility
$499.82
No comparable office rate is available.
Connecticut
Connecticut · 66630
Office
Unavailable
Facility
$512.73
No comparable office rate is available.
Delaware
Delaware · 66630
Office
Unavailable
Facility
$482.85
No comparable office rate is available.
Fort Lauderdale
Florida · 66630
Office
Unavailable
Facility
$504.43
No comparable office rate is available.
Rest Of Florida
Florida · 66630
Office
Unavailable
Facility
$485.58
No comparable office rate is available.
Atlanta
Georgia · 66630
Office
Unavailable
Facility
$494.48
No comparable office rate is available.
Rest Of Georgia
Georgia · 66630
Office
Unavailable
Facility
$465.02
No comparable office rate is available.
Hawaii, Guam
Hawaii · 66630
Office
Unavailable
Facility
$510.02
No comparable office rate is available.
Iowa
Iowa · 66630
Office
Unavailable
Facility
$455.45
No comparable office rate is available.
Idaho
Idaho · 66630
Office
Unavailable
Facility
$458.02
No comparable office rate is available.
East St. Louis
Illinois · 66630
Office
Unavailable
Facility
$486.85
No comparable office rate is available.
Rest Of Illinois
Illinois · 66630
Office
Unavailable
Facility
$476.80
No comparable office rate is available.
Suburban Chicago
Illinois · 66630
Office
Unavailable
Facility
$508.64
No comparable office rate is available.
Indiana
Indiana · 66630
Office
Unavailable
Facility
$459.88
No comparable office rate is available.
Kansas
Kansas · 66630
Office
Unavailable
Facility
$454.91
No comparable office rate is available.
Kentucky
Kentucky · 66630
Office
Unavailable
Facility
$459.15
No comparable office rate is available.
New Orleans
Louisiana · 66630
Office
Unavailable
Facility
$475.26
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 66630
Office
Unavailable
Facility
$459.03
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 66630
Office
Unavailable
Facility
$538.69
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 66630
Office
Unavailable
Facility
$498.53
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 66630
Office
Unavailable
Facility
$511.37
No comparable office rate is available.
Rest Of Maryland
Maryland · 66630
Office
Unavailable
Facility
$489.92
No comparable office rate is available.
Rest Of Maine
Maine · 66630
Office
Unavailable
Facility
$460.81
No comparable office rate is available.
Southern Maine
Maine · 66630
Office
Unavailable
Facility
$477.34
No comparable office rate is available.
Detroit
Michigan · 66630
Office
Unavailable
Facility
$491.08
No comparable office rate is available.
Rest Of Michigan
Michigan · 66630
Office
Unavailable
Facility
$468.68
No comparable office rate is available.
Minnesota
Minnesota · 66630
Office
Unavailable
Facility
$479.83
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 66630
Office
Unavailable
Facility
$471.83
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 66630
Office
Unavailable
Facility
$475.29
No comparable office rate is available.
Rest Of Missouri
Missouri · 66630
Office
Unavailable
Facility
$454.03
No comparable office rate is available.
Mississippi
Mississippi · 66630
Office
Unavailable
Facility
$449.40
No comparable office rate is available.
Montana**
Montana · 66630
Office
Unavailable
Facility
$486.28
No comparable office rate is available.
North Carolina
North Carolina · 66630
Office
Unavailable
Facility
$464.12
No comparable office rate is available.
North Dakota**
North Dakota · 66630
Office
Unavailable
Facility
$475.21
No comparable office rate is available.
Nebraska
Nebraska · 66630
Office
Unavailable
Facility
$456.94
No comparable office rate is available.
New Hampshire
New Hampshire · 66630
Office
Unavailable
Facility
$493.43
No comparable office rate is available.
Northern Nj
New Jersey · 66630
Office
Unavailable
Facility
$539.40
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 66630
Office
Unavailable
Facility
$518.82
No comparable office rate is available.
New Mexico
New Mexico · 66630
Office
Unavailable
Facility
$470.95
No comparable office rate is available.
Nevada**
Nevada · 66630
Office
Unavailable
Facility
$483.42
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 66630
Office
Unavailable
Facility
$561.08
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 66630
Office
Unavailable
Facility
$522.81
No comparable office rate is available.
Queens
New York · 66630
Office
Unavailable
Facility
$551.71
No comparable office rate is available.
Rest Of New York
New York · 66630
Office
Unavailable
Facility
$469.24
No comparable office rate is available.
Ohio
Ohio · 66630
Office
Unavailable
Facility
$466.42
No comparable office rate is available.
Oklahoma
Oklahoma · 66630
Office
Unavailable
Facility
$457.49
No comparable office rate is available.
Portland
Oregon · 66630
Office
Unavailable
Facility
$510.90
No comparable office rate is available.
Rest Of Oregon
Oregon · 66630
Office
Unavailable
Facility
$479.84
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 66630
Office
Unavailable
Facility
$503.64
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 66630
Office
Unavailable
Facility
$466.39
No comparable office rate is available.
Puerto Rico
Puerto Rico · 66630
Office
Unavailable
Facility
$488.57
No comparable office rate is available.
Rhode Island
Rhode Island · 66630
Office
Unavailable
Facility
$496.41
No comparable office rate is available.
South Carolina
South Carolina · 66630
Office
Unavailable
Facility
$466.00
No comparable office rate is available.
South Dakota**
South Dakota · 66630
Office
Unavailable
Facility
$473.90
No comparable office rate is available.
Tennessee
Tennessee · 66630
Office
Unavailable
Facility
$456.68
No comparable office rate is available.
Austin
Texas · 66630
Office
Unavailable
Facility
$498.03
No comparable office rate is available.
Beaumont
Texas · 66630
Office
Unavailable
Facility
$464.25
No comparable office rate is available.
Brazoria
Texas · 66630
Office
Unavailable
Facility
$482.03
No comparable office rate is available.
Dallas
Texas · 66630
Office
Unavailable
Facility
$484.87
No comparable office rate is available.
Fort Worth
Texas · 66630
Office
Unavailable
Facility
$482.81
No comparable office rate is available.
Galveston
Texas · 66630
Office
Unavailable
Facility
$483.38
No comparable office rate is available.
Houston
Texas · 66630
Office
Unavailable
Facility
$493.63
No comparable office rate is available.
Rest Of Texas
Texas · 66630
Office
Unavailable
Facility
$472.75
No comparable office rate is available.
Utah
Utah · 66630
Office
Unavailable
Facility
$470.58
No comparable office rate is available.
Virginia
Virginia · 66630
Office
Unavailable
Facility
$476.90
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 66630
Office
Unavailable
Facility
$488.57
No comparable office rate is available.
Vermont
Vermont · 66630
Office
Unavailable
Facility
$474.77
No comparable office rate is available.
Rest Of Washington
Washington · 66630
Office
Unavailable
Facility
$497.14
No comparable office rate is available.
Seattle (King Cnty)
Washington · 66630
Office
Unavailable
Facility
$547.07
No comparable office rate is available.
Wisconsin
Wisconsin · 66630
Office
Unavailable
Facility
$463.69
No comparable office rate is available.
West Virginia
West Virginia · 66630
Office
Unavailable
Facility
$464.19
No comparable office rate is available.
Wyoming**
Wyoming · 66630
Office
Unavailable
Facility
$481.45
No comparable office rate is available.
See how rates vary across the country
66630 · 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?
Modesto is a Medicare payment area. Our Census mapping connects it to 33 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 66630 in Modesto. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$554.17
$503.79 × 110% = $554.17
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 66630 in Modesto.
PPRRVU2026_Oct_nonQPP.csv
7,382
- Code
- 66630
- Physician work
- 7.10
- Practice expense
- 6.90
- Malpractice
- 0.56
GPCI2026.csv
16
- Locality
- Modesto
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 7.10 | × 1.017 | 7.2207 |
| Practice expense | 6.90 | × 1.096 | 7.5624 |
| Malpractice | 0.56 | × 0.536 | 0.3002 |
| Total RVUs | 15.0833 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Modesto$503.79
Open 66630 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 7.1 | 1.017 |
| Practice expense | 6.9 | 1.096 |
| Malpractice | 0.56 | 0.536 |
(7.1 × 1.017 + 6.9 × 1.096 + 0.56 × 0.536) × $33.4009 = $503.79
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
66630 · 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 | $503.79 | RVU26D |
| 2026-07-01 | Not available in this setting | $503.79 | RVU26C |
| 2026-04-01 | Not available in this setting | $503.79 | RVU26B |
| 2026-01-01 | Not available in this setting | $503.79 | RVU26A |
| 2025-10-01 | Not available in this setting | $567.12 | RVU25D |
| 2025-07-01 | Not available in this setting | $567.12 | RVU25C |
| 2025-04-01 | Not available in this setting | $567.12 | RVU25B |
| 2025-01-01 | Not available in this setting | $567.12 | RVU25A |
66630 billing questions
How is 66630 distinguished from 66625?
Use 66630 when the iridectomy is for a documented indication other than glaucoma. Code 66625 is the glaucoma-directed iridectomy in this family.
When is 66600 a better choice?
Use 66600 when the procedure is specifically for removal of an iris lesion. Code 66630 describes an iridectomy for a non-glaucoma indication other than lesion removal.
What documentation supports 66630?
The operative report should state the non-glaucoma indication, identify the eye and surgical approach, and describe the iris tissue removed.
How are bilateral procedures reported?
CMS identifies this as a bilateral procedure; reporting modifier 50 is paid at 150%.
Are the preoperative visit and postoperative care separately 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.
