No office rate
Use 58920 when a portion of ovarian tissue is removed. Use 58925 when the surgeon excises an ovarian cyst while preserving the surrounding ovary.
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CMS RVU26D · Effective 2026-10-01
58920 Ovarian surgery Medicare reimbursement rates in Michigan
Reports surgical removal of part of an ovary while ovarian tissue remains, rather than cyst-only excision or removal of the entire ovary. Compare 58920 office and facility rates across CMS payment localities in Michigan.
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 58920 in Michigan?
Michigan has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$625.00–$672.17
2 of 2 localities have a supported rate.
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 58920: Partial ovarian tissue removal
Reports surgical removal of part of an ovary while ovarian tissue remains, rather than cyst-only excision or removal of the entire ovary.
A gynecologic surgeon removes a segment of ovarian tissue while leaving some of the ovary in place. The operation may be performed to excise a focal area or as a tissue-sparing ovarian procedure. The operative report should identify the ovary or ovaries treated, the amount and type of tissue removed, and what ovarian tissue remained. This distinguishes partial ovarian removal from taking a biopsy, removing only a cyst, or removing an entire ovary.
Report the service for partial ovarian tissue excision, whether one or both ovaries are treated; CMS pricing already accounts for bilateral work, so modifier 50 does not increase payment. The major-surgery global period includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Assistant-at-surgery services may be paid; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 58920
- 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 RVU11.65 · 62%
- Practice expense (office) RVU5.20 · 28%
- Malpractice RVU2.05 · 11%
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.
58920 compared with similar codes
Office rates for Michigan, from the same CMS release.
No office rate
58940 describes a broader partial or total oophorectomy service. Choose based on the documented extent and nature of the ovarian removal.
No office rate
58900 is for obtaining an ovarian biopsy specimen. It does not describe removal of ovarian tissue as the operative treatment.
Compare 58920 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.
2 of 2 payment localities
Detroit →
Office / nonfacility
Unavailable
Facility
$672.17
Rest Of Michigan →
Office / nonfacility
Unavailable
Facility
$625.00
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58920 billing questions
How is partial ovarian removal different from ovarian cystectomy?
This code describes removal of ovarian tissue itself. For an operation that removes a cyst while preserving the surrounding ovary, consider 58925.
Should modifier 50 be added when both ovaries are treated?
CMS pricing for this code already accounts for bilateral treatment. Modifier 50 does not increase payment.
What should the operative note document?
Document which ovary or ovaries were treated, the ovarian tissue removed, and the tissue that remained. The details should support partial ovarian removal rather than biopsy, cyst-only excision, or complete removal.
Is routine postoperative care separately reported?
Related postoperative care during the 90-day global period is included. The global period also includes the day-before preoperative visit.
How are other procedures in the same session paid?
Under the standard multiple-procedure reduction, the highest-valued procedure is paid in full and other procedures are subject to a 50% reduction.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery services may be paid. Co-surgeons are paid only with supporting documentation; team surgery is not permitted.
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.
6,60558822,,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
6,61158943,,Removal of ovary(s),A,,19.03,10.39,NA,10.39,,4.40,33.82,33.82,0,090,0.12,0.74,0.14,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00