CPT code 58956: Ovarian cancer surgery, with hysterectomy and omentectomy2026 Medicare rate & RVUs in Montana

In Montana, Medicare pays $1,260.23 for 58956 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 58956 nationwide

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

What 58956 covers

A gynecologic oncologist typically performs this abdominal operation to remove a primary malignancy involving the ovary, fallopian tube, or peritoneal surface. The operative work includes removing both tubes and ovaries, the omentum, and the uterus through an abdominal approach. It is used when the planned cancer operation includes all of these components, rather than an isolated ovarian removal or a more extensive radical debulking procedure.

Select the code from the documented operation, not diagnosis alone: the record should support resection of the primary tumor and each included operative component. The code represents bilateral removal already, so modifier 50 does not increase payment. It has a 90-day global period, including 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 other procedures are subject to the standard 50% reduction. Assistant-at-surgery payment may be available; co-surgeon payment requires 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.

How Montana compares for 58956

Across 109 of 109 payment localities, the facility rate for 58956 runs from $1,132.81 in Arkansas to $1,583.75 in Alaska. Montana pays $1,260.23. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

58956 rates by state

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

See 58956 in every payment locality

How the 58956 rate is calculated

Each of 58956’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.

Payment rules and modifiers for 58956

58956 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 51

Codes related to 58956

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

How 58956 has changed in Montana

Price 58956 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

• Absarokee
• Acton
• Alberton
• Alder
• Alzada
• Amsterdam
• Anaconda-Deer Lodge County
• Antelope

Browse all communities in Montana

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

Open CMS sourceHow we calculate rates