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 Ovarian abscess drainage Medicare reimbursement rates in Rhode Island
Open surgical drainage of an ovarian abscess is reported when a gynecologic surgeon evacuates the abscess through direct operative access. Compare 58820 office and facility rates across CMS payment localities in Rhode Island.
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 58820 in Rhode Island?
Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$307.68
1 of 1 localities have a supported rate.
Payment area: Rhode Island
One mapped payment locality.
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.
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 Rhode Island, from the same CMS release.
$359.22
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.
Compare 58820 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.
1 of 1 payment localities
Rhode Island →
Office / nonfacility
Unavailable
Facility
$307.68
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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 Rhode Island.
PPRRVU2026_Oct_nonQPP.csv
6,604
- Code
- 58820
- Physician work
- 4.58
- Practice expense
- 3.70
- Malpractice
- 0.81
GPCI2026.csv
92
- Locality
- Rhode Island
- Physician work
- 1.019
- Practice expense
- 1.033
- Malpractice
- 0.892
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 4.58 | × 1.019 | 4.6670 |
| Practice expense | 3.70 | × 1.033 | 3.8221 |
| Malpractice | 0.81 | × 0.892 | 0.7225 |
| Total RVUs | 9.2116 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Rhode Island$307.68
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 4.58 | 1.019 |
| Practice expense | 3.7 | 1.033 |
| Malpractice | 0.81 | 0.892 |
(4.58 × 1.019 + 3.7 × 1.033 + 0.81 × 0.892) × $33.4009 = $307.68
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.
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
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193
9012502,PA,99,REST OF PENNSYLVANIA,1.000,0.918,0.945
9109202,PR,20,PUERTO RICO,1.000,1.011,0.985
9214412,RI,01,RHODE ISLAND,1.019,1.033,0.892
9311202,SC,01,SOUTH CAROLINA,1.000,0.924,0.850
9403402,SD,02,SOUTH DAKOTA**,1.000,1.000,0.336
9510312,TN,35,TENNESSEE,1.000,0.909,0.537