No office rate
58900 samples ovarian tissue for diagnosis. 58920 describes removal of part of an ovary.
On this page
CMS RVU26D · Effective 2026-10-01
58900 Ovarian biopsy Medicare reimbursement rates in Wyoming
Surgical sampling of ovarian tissue for pathologic diagnosis, reported when a limited biopsy is performed rather than cyst removal or ovarian resection. Compare 58900 office and facility rates across CMS payment localities in Wyoming.
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 58900 in Wyoming?
Wyoming 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
$379.31
1 of 1 localities have a supported rate.
Payment area: Wyoming**
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.
Gynecologic surgery
About 58900: Ovarian tissue biopsy
Surgical sampling of ovarian tissue for pathologic diagnosis, reported when a limited biopsy is performed rather than cyst removal or ovarian resection.
An ovarian biopsy removes a limited piece of ovarian tissue for histologic evaluation rather than removing a cyst or part or all of the ovary. A gynecologist or gynecologic oncologist may obtain the sample during an abdominal or pelvic operation when tissue diagnosis is needed, such as evaluation of a suspicious ovarian lesion. The specimen is sent for pathologic examination; this code represents the surgeon’s sampling service, not the pathology interpretation.
Report 58900 when the operative record supports a distinct ovarian tissue biopsy and the work is not simply part of a more extensive removal. Document the sampled ovary, indication, approach, and specimen. CMS prices the code as bilateral, so modifier 50 does not increase payment. It has a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and the others at 50%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 58900
- 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
- The code is already priced as bilateral; modifier 50 does not increase payment.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU6.43 · 55%
- Practice expense (office) RVU4.09 · 35%
- Malpractice RVU1.13 · 10%
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.
58900 compared with similar codes
Office rates for Wyoming, from the same CMS release.
No office rate
Choose 58925 when the surgeon removes an ovarian cyst; 58900 is for limited tissue sampling, not cyst removal.
No office rate
58940 is for removing an ovary. 58900 is for sampling tissue while leaving the ovary in place.
Compare 58900 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
Wyoming** →
Office / nonfacility
Unavailable
Facility
$379.31
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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 58900 in Wyoming**.
PPRRVU2026_Oct_nonQPP.csv
6,607
- Code
- 58900
- Physician work
- 6.43
- Practice expense
- 4.09
- Malpractice
- 1.13
GPCI2026.csv
112
- Locality
- Wyoming**
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.740
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 6.43 | × 1.000 | 6.4300 |
| Practice expense | 4.09 | × 1.000 | 4.0900 |
| Malpractice | 1.13 | × 0.740 | 0.8362 |
| Total RVUs | 11.3562 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Wyoming**$379.31
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 6.43 | 1 |
| Practice expense | 4.09 | 1 |
| Malpractice | 1.13 | 0.74 |
(6.43 × 1 + 4.09 × 1 + 1.13 × 0.74) × $33.4009 = $379.31
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.
58900 billing questions
When should 58900 be used instead of an ovarian cystectomy?
Use 58900 for limited tissue sampling for diagnosis. Use 58925 when the surgeon removes an ovarian cyst rather than taking a biopsy sample.
Can the biopsy be reported separately during an oophorectomy?
Do not separately report a biopsy that is part of the same ovarian removal. The removal captures the tissue-taking work from that ovary.
Should modifier 50 be added when both ovaries are biopsied?
No. CMS prices 58900 as bilateral, and modifier 50 does not increase payment.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
What documentation supports 58900 and co-surgeon billing?
Record the clinical reason for sampling, the ovary sampled, the biopsy performed, and the specimen submitted. Co-surgeon payment requires supporting documentation; assistant-at-surgery payment may be made.
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.
6,60458820,,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
6,60858920,,Partial removal of ovary(s),A,,11.65,5.20,NA,5.20,,2.05,18.90,18.90,0,090,0.12,0.74,0.14,2,2,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,60958925,,Removal of ovarian cyst(s),A,,12.12,6.37,NA,6.37,,2.41,20.90,20.90,0,090,0.12,0.74,0.14,2,2,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,61058940,,Removal of ovary(s),A,,8.01,5.75,NA,5.75,,1.67,15.43,15.43,0,090,0.12,0.74,0.14,2,2,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
10902402,WA,99,REST OF WASHINGTON,1.013,1.053,0.761
11011402,WV,16,WEST VIRGINIA,1.000,0.869,1.431
11106302,WI,00,WISCONSIN,1.000,0.958,0.308
11203602,WY,21,WYOMING**,1.000,1.000,0.740
113"MAC Assignments as of November 22, 2023",,,,,,
114,,,,,,
115*Work GPCI reflects a 1.5 floor in Alaska established by the MIPPA.,,,,,,