No office rate
Both codes address an ovarian abscess, but 58820 is for open drainage and 58822 is for percutaneous drainage.
On this page
CMS RVU26D · Effective 2026-10-01
58820 in Merced
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$305.53
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.
Gynecology surgery
About 58820: Open drainage of ovarian abscess
Open surgical drainage of an ovarian abscess is reported when a gynecologic surgeon evacuates the abscess through direct operative access.
A gynecologic surgeon uses open operative access to reach and drain an ovarian abscess, evacuating the infected collection. The procedure is typically performed in an operating room when direct surgical access is used rather than a percutaneous drainage route. Operative findings should support treatment of an abscess, not simply drainage of an ovarian cyst.
Report the service when the operative record documents the abscess, open approach, side or sides treated, and drainage performed. The 90-day global period includes 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 the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted.
CMS billing rules for 58820
- 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 RVU4.58 · 50%
- Practice expense (office) RVU3.70 · 41%
- Malpractice RVU0.81 · 9%
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.
58820 compared with similar codes
Office rates for Merced, from the same CMS release.
$360.66
Use 58800 for ovarian cyst drainage by vaginal approach. An abscess treated by open operative drainage is reported with 58820.
No office rate
Use 58805 for ovarian cyst drainage by abdominal approach. The diagnosis and treatment of an ovarian abscess distinguish 58820.
The same code, a different location
How does Merced compare?
58820 across payment areas
Same release and payment basis · bars start at $0
Merced · 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 · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Modesto
California · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Napa
California · 58820
Office
Unavailable
Facility
$339.24
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 58820
Office
Unavailable
Facility
$320.19
No comparable office rate is available.
Redding
California · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Rest Of California
California · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 58820
Office
Unavailable
Facility
$314.25
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 58820
Office
Unavailable
Facility
$316.71
No comparable office rate is available.
Salinas
California · 58820
Office
Unavailable
Facility
$315.45
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 58820
Office
Unavailable
Facility
$320.03
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 58820
Office
Unavailable
Facility
$354.18
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 58820
Office
Unavailable
Facility
$353.26
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 58820
Office
Unavailable
Facility
$362.51
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 58820
Office
Unavailable
Facility
$358.75
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 58820
Office
Unavailable
Facility
$310.84
No comparable office rate is available.
Santa Cruz-Watsonville
California · 58820
Office
Unavailable
Facility
$320.84
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 58820
Office
Unavailable
Facility
$315.86
No comparable office rate is available.
Santa Rosa-Petaluma
California · 58820
Office
Unavailable
Facility
$323.83
No comparable office rate is available.
Stockton
California · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Vallejo
California · 58820
Office
Unavailable
Facility
$337.91
No comparable office rate is available.
Visalia
California · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Yuba City
California · 58820
Office
Unavailable
Facility
$305.53
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 58820
Office
Unavailable
Facility
$336.93
No comparable office rate is available.
Miami
Florida · 58820
Office
Unavailable
Facility
$350.05
No comparable office rate is available.
Chicago
Illinois · 58820
Office
Unavailable
Facility
$340.34
No comparable office rate is available.
Manhattan
New York · 58820
Office
Unavailable
Facility
$349.28
No comparable office rate is available.
Alaska*
Alaska · 58820
Office
Unavailable
Facility
$375.99
No comparable office rate is available.
Alabama
Alabama · 58820
Office
Unavailable
Facility
$276.42
No comparable office rate is available.
Arkansas
Arkansas · 58820
Office
Unavailable
Facility
$273.07
No comparable office rate is available.
Arizona
Arizona · 58820
Office
Unavailable
Facility
$295.89
No comparable office rate is available.
Colorado
Colorado · 58820
Office
Unavailable
Facility
$307.43
No comparable office rate is available.
Connecticut
Connecticut · 58820
Office
Unavailable
Facility
$321.87
No comparable office rate is available.
Delaware
Delaware · 58820
Office
Unavailable
Facility
$300.16
No comparable office rate is available.
Fort Lauderdale
Florida · 58820
Office
Unavailable
Facility
$327.08
No comparable office rate is available.
Rest Of Florida
Florida · 58820
Office
Unavailable
Facility
$311.79
No comparable office rate is available.
Atlanta
Georgia · 58820
Office
Unavailable
Facility
$311.49
No comparable office rate is available.
Rest Of Georgia
Georgia · 58820
Office
Unavailable
Facility
$295.46
No comparable office rate is available.
Hawaii, Guam
Hawaii · 58820
Office
Unavailable
Facility
$309.16
No comparable office rate is available.
Iowa
Iowa · 58820
Office
Unavailable
Facility
$276.80
No comparable office rate is available.
Idaho
Idaho · 58820
Office
Unavailable
Facility
$279.47
No comparable office rate is available.
East St. Louis
Illinois · 58820
Office
Unavailable
Facility
$321.16
No comparable office rate is available.
Rest Of Illinois
Illinois · 58820
Office
Unavailable
Facility
$308.09
No comparable office rate is available.
Suburban Chicago
Illinois · 58820
Office
Unavailable
Facility
$328.91
No comparable office rate is available.
Indiana
Indiana · 58820
Office
Unavailable
Facility
$280.69
No comparable office rate is available.
Kansas
Kansas · 58820
Office
Unavailable
Facility
$278.33
No comparable office rate is available.
Kentucky
Kentucky · 58820
Office
Unavailable
Facility
$287.60
No comparable office rate is available.
New Orleans
Louisiana · 58820
Office
Unavailable
Facility
$300.00
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 58820
Office
Unavailable
Facility
$288.27
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 58820
Office
Unavailable
Facility
$330.89
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 58820
Office
Unavailable
Facility
$307.12
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 58820
Office
Unavailable
Facility
$321.50
No comparable office rate is available.
Rest Of Maryland
Maryland · 58820
Office
Unavailable
Facility
$304.41
No comparable office rate is available.
Rest Of Maine
Maine · 58820
Office
Unavailable
Facility
$283.50
No comparable office rate is available.
Southern Maine
Maine · 58820
Office
Unavailable
Facility
$292.52
No comparable office rate is available.
Detroit
Michigan · 58820
Office
Unavailable
Facility
$317.85
No comparable office rate is available.
Rest Of Michigan
Michigan · 58820
Office
Unavailable
Facility
$296.35
No comparable office rate is available.
Minnesota
Minnesota · 58820
Office
Unavailable
Facility
$288.15
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 58820
Office
Unavailable
Facility
$295.45
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 58820
Office
Unavailable
Facility
$297.74
No comparable office rate is available.
Rest Of Missouri
Missouri · 58820
Office
Unavailable
Facility
$285.86
No comparable office rate is available.
Mississippi
Mississippi · 58820
Office
Unavailable
Facility
$279.37
No comparable office rate is available.
Montana**
Montana · 58820
Office
Unavailable
Facility
$303.56
No comparable office rate is available.
North Carolina
North Carolina · 58820
Office
Unavailable
Facility
$285.57
No comparable office rate is available.
North Dakota**
North Dakota · 58820
Office
Unavailable
Facility
$287.54
No comparable office rate is available.
Nebraska
Nebraska · 58820
Office
Unavailable
Facility
$277.27
No comparable office rate is available.
New Hampshire
New Hampshire · 58820
Office
Unavailable
Facility
$305.30
No comparable office rate is available.
Northern Nj
New Jersey · 58820
Office
Unavailable
Facility
$334.86
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 58820
Office
Unavailable
Facility
$323.73
No comparable office rate is available.
New Mexico
New Mexico · 58820
Office
Unavailable
Facility
$298.79
No comparable office rate is available.
Nevada**
Nevada · 58820
Office
Unavailable
Facility
$299.22
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 58820
Office
Unavailable
Facility
$359.95
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 58820
Office
Unavailable
Facility
$327.92
No comparable office rate is available.
Queens
New York · 58820
Office
Unavailable
Facility
$347.86
No comparable office rate is available.
Rest Of New York
New York · 58820
Office
Unavailable
Facility
$289.40
No comparable office rate is available.
Ohio
Ohio · 58820
Office
Unavailable
Facility
$293.08
No comparable office rate is available.
Oklahoma
Oklahoma · 58820
Office
Unavailable
Facility
$284.36
No comparable office rate is available.
Portland
Oregon · 58820
Office
Unavailable
Facility
$312.85
No comparable office rate is available.
Rest Of Oregon
Oregon · 58820
Office
Unavailable
Facility
$295.08
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 58820
Office
Unavailable
Facility
$316.66
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 58820
Office
Unavailable
Facility
$291.99
No comparable office rate is available.
Puerto Rico
Puerto Rico · 58820
Office
Unavailable
Facility
$304.57
No comparable office rate is available.
Rhode Island
Rhode Island · 58820
Office
Unavailable
Facility
$307.68
No comparable office rate is available.
South Carolina
South Carolina · 58820
Office
Unavailable
Facility
$290.16
No comparable office rate is available.
South Dakota**
South Dakota · 58820
Office
Unavailable
Facility
$285.65
No comparable office rate is available.
Tennessee
Tennessee · 58820
Office
Unavailable
Facility
$279.84
No comparable office rate is available.
Austin
Texas · 58820
Office
Unavailable
Facility
$308.00
No comparable office rate is available.
Beaumont
Texas · 58820
Office
Unavailable
Facility
$290.57
No comparable office rate is available.
Brazoria
Texas · 58820
Office
Unavailable
Facility
$297.77
No comparable office rate is available.
Dallas
Texas · 58820
Office
Unavailable
Facility
$300.65
No comparable office rate is available.
Fort Worth
Texas · 58820
Office
Unavailable
Facility
$299.77
No comparable office rate is available.
Galveston
Texas · 58820
Office
Unavailable
Facility
$299.32
No comparable office rate is available.
Houston
Texas · 58820
Office
Unavailable
Facility
$314.15
No comparable office rate is available.
Rest Of Texas
Texas · 58820
Office
Unavailable
Facility
$294.69
No comparable office rate is available.
Utah
Utah · 58820
Office
Unavailable
Facility
$293.44
No comparable office rate is available.
Virginia
Virginia · 58820
Office
Unavailable
Facility
$293.56
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 58820
Office
Unavailable
Facility
$304.57
No comparable office rate is available.
Vermont
Vermont · 58820
Office
Unavailable
Facility
$289.01
No comparable office rate is available.
Rest Of Washington
Washington · 58820
Office
Unavailable
Facility
$305.69
No comparable office rate is available.
Seattle (King Cnty)
Washington · 58820
Office
Unavailable
Facility
$334.37
No comparable office rate is available.
Wisconsin
Wisconsin · 58820
Office
Unavailable
Facility
$279.70
No comparable office rate is available.
West Virginia
West Virginia · 58820
Office
Unavailable
Facility
$299.09
No comparable office rate is available.
Wyoming**
Wyoming · 58820
Office
Unavailable
Facility
$296.58
No comparable office rate is available.
See how rates vary across the country
58820 · 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?
Merced is a Medicare payment area. Our Census mapping connects it to 24 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 58820 in Merced. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$336.08
$305.53 × 110% = $336.08
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 58820 in Merced.
PPRRVU2026_Oct_nonQPP.csv
6,604
- Code
- 58820
- Physician work
- 4.58
- Practice expense
- 3.70
- Malpractice
- 0.81
GPCI2026.csv
15
- Locality
- Merced
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 4.58 | × 1.017 | 4.6579 |
| Practice expense | 3.70 | × 1.096 | 4.0552 |
| Malpractice | 0.81 | × 0.536 | 0.4342 |
| Total RVUs | 9.1472 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Merced$305.53
Open 58820 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 4.58 | 1.017 |
| Practice expense | 3.7 | 1.096 |
| Malpractice | 0.81 | 0.536 |
(4.58 × 1.017 + 3.7 × 1.096 + 0.81 × 0.536) × $33.4009 = $305.53
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
58820 · 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 | $305.53 | RVU26D |
| 2026-07-01 | Not available in this setting | $305.53 | RVU26C |
| 2026-04-01 | Not available in this setting | $305.53 | RVU26B |
| 2026-01-01 | Not available in this setting | $305.53 | RVU26A |
| 2025-10-01 | Not available in this setting | $336.58 | RVU25D |
| 2025-07-01 | Not available in this setting | $336.58 | RVU25C |
| 2025-04-01 | Not available in this setting | $336.58 | RVU25B |
| 2025-01-01 | Not available in this setting | $336.58 | RVU25A |
58820 billing questions
How is this code distinguished from 58822?
Use 58820 for open operative drainage of an ovarian abscess. Code 58822 describes percutaneous drainage of an ovarian abscess.
Can this code be used for drainage of an ovarian cyst?
No. This code is for an ovarian abscess; 58800 or 58805 may apply to ovarian cyst drainage, depending on the approach.
What documentation supports reporting this code?
The operative report should establish that the treated collection was an ovarian abscess and describe the open approach, the side or sides, and the drainage performed.
How is bilateral drainage reported?
When the procedure is bilateral, report modifier 50. CMS pays the bilateral procedure at 150%.
What postoperative care is included?
The 90-day global includes the day-before preoperative visit and related postoperative care through the 90-day period.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted for this code.
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.
6,60158770,,Create new tubal opening,A,,14.40,5.83,NA,5.83,,2.53,22.76,22.76,0,090,0.12,0.74,0.14,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60258800,,Drainage of ovarian cyst(s),A,,4.50,5.29,,3.14,,0.79,10.58,8.43,0,090,0.12,0.74,0.14,2,2,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60358805,,Drainage of ovarian cyst(s),A,,6.26,4.05,NA,4.05,,1.10,11.41,11.41,0,090,0.12,0.74,0.14,2,2,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60458820,,Drain ovary abscess open,A,,4.58,3.70,NA,3.70,,0.81,9.09,9.09,0,090,0.12,0.74,0.14,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60558822,,Drain ovary abscess percut,A,,11.51,5.41,NA,5.41,,2.02,18.94,18.94,0,090,0.12,0.74,0.14,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60658825,,Transposition ovary(s),A,,11.49,5.29,NA,5.29,,2.01,18.79,18.79,0,090,0.12,0.74,0.14,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60758900,,Biopsy of ovary(s),A,,6.43,4.09,NA,4.09,,1.13,11.65,11.65,0,090,0.12,0.74,0.14,2,2,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1201112,CA,57,HANFORD-CORCORAN,1.017,1.096,0.536
1301182,CA,18,LOS ANGELES-LONG BEACH-ANAHEIM (LOS ANGELES/ORANGE CNTY),1.041,1.183,0.664
1401112,CA,58,MADERA,1.017,1.096,0.536
1501112,CA,59,MERCED,1.017,1.096,0.536
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