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CPT code 58920: Ovarian surgery, partial tissue removal2026 Medicare rate & RVUs

Reports surgical removal of part of an ovary while ovarian tissue remains, rather than cyst-only excision or removal of the entire ovary.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $631.28 for 58920 nationally in a facility.

Medicare rate · 58920

Ovarian surgery, partial tissue removal

Office or facility?

Work RVUs
11.65
Total RVUs
18.90
Global days
090

National rate · 2026

$631.28

Facility setting, before claim adjustments.

See every locality for 58920 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 58920 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 58920 covers

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.

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.

Where 58920 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

58920 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$579.85
AlaskaUnavailable$806.38
ArizonaUnavailable$616.03
ArkansasUnavailable$573.58
Atlanta, GAUnavailable$648.99
Austin, TXUnavailable$634.32
Bakersfield, CAUnavailable$628.57
Baltimore area, MDUnavailable$666.41
Beaumont, TXUnavailable$610.78
Brazoria, TXUnavailable$617.76

58920 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
58920 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 58920 rate is calculated

Each of 58920’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

How the rate is built · 58920

RVUs × geographic indexes × conversion factor

Office or facility?

Work11.65

11.65 RVUs× 1.000 GPCI

Practice expense5.20

5.20 RVUs× 1.000 GPCI

Malpractice2.05

2.05 RVUs× 1.000 GPCI

Adjusted RVUs

18.9000

Conversion factor

$33.4009

Medicare rate

$631.28

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 58920

58920 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 58920

Ovarian surgery, partial tissue removal

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)2Already bilateral by definition: paid once at 100%.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.12/0.74/0.14Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 58920

Ovarian surgery, partial tissue removal

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

58920 without 51 · national facility

$631.28

Ovarian surgery, partial tissue removal

58920-51 · Second procedure: 50%

$315.64

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

58920 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 58920

    Ovarian surgery, partial tissue removal11.65 wRVU

    Not priced

  • 58925

    Ovarian cystectomy, cyst removal, ovary preserved12.12 wRVU

    Not priced

  • 58940

    Oophorectomy, partial or total, one or both8.01 wRVU

    Not priced

  • 58900

    Ovarian biopsy, tissue sampling only6.43 wRVU

    Not priced

How to choose

58925Ovarian cystectomyCyst removal, ovary preserved
Use 58920 when a portion of ovarian tissue is removed. Use 58925 when the surgeon excises an ovarian cyst while preserving the surrounding ovary.
58940OophorectomyPartial or total, one or both
58940 describes a broader partial or total oophorectomy service. Choose based on the documented extent and nature of the ovarian removal.
58900Ovarian biopsyTissue sampling only
58900 is for obtaining an ovarian biopsy specimen. It does not describe removal of ovarian tissue as the operative treatment.

Codes related to 58920

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 58920
CodeHow it relatesNational office range
Used instead
58925Ovarian cystectomy, cyst removal, ovary preservedFor removal of an ovarian cyst while preserving surrounding ovarian tissue.No office rate
58940Oophorectomy, partial or total, one or bothFor broader partial or total ovarian removal rather than this partial-removal service.No office rate
58900Ovarian biopsy, tissue sampling onlyFor ovarian tissue sampling by biopsy rather than therapeutic partial removal.No office rate
58950Cancer resection, with BSO and omentectomyFor ovarian malignancy resection when the operative service meets that code's scope.No office rate

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 indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Show the CMS file lines behind this rate
RVUs for 58920PPRRVU2026_Oct_nonQPP.csv, line 6,608 (RVU26D)

Open CMS sourceHow we calculate rates

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