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CMS RVU26D · Effective 2026-10-01

33600 Valve closure Medicare reimbursement rates in Missouri

Reports surgical closure of a cardiac valve with cardiopulmonary bypass during an operation to treat congenital heart anatomy. Compare 33600 office and facility rates across CMS payment localities in Missouri.

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 33600 in Missouri?

Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.

Office / nonfacility

No supported rate

Facility setting

$1565.32–$1607.39

3 of 3 localities have a supported rate.

Lowest: Rest Of Missouri

Highest: Metropolitan St. Louis

A spread of $42.07 per service.

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.

Find 33600 in your payment locality →

Where 33600 pays more and less in Missouri

Congenital cardiac surgery

About 33600: Surgical closure of a cardiac valve

Reports surgical closure of a cardiac valve with cardiopulmonary bypass during an operation to treat congenital heart anatomy.

This code describes an operation in which a cardiac surgeon closes a valve opening using cardiopulmonary bypass. It is distinct from an operation that repairs a valve to preserve its function or replaces it with a prosthesis. The operative report should identify the valve, the reason for intentionally closing it, and the surgical approach; the clinical context may be repair or palliation of congenital heart disease.

Report the code when the documented procedure matches valve closure with bypass, rather than the no-bypass variant or a different cardiac repair. CMS assigns a 90-day global period, including 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 payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Modifier 50 is inappropriate for this code.

CMS billing rules for 33600

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 adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
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 RVU29.55 · 61%
  • Practice expense (office) RVU11.68 · 24%
  • Malpractice RVU7.44 · 15%

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.

33600 compared with similar codes

Office rates for Missouri, from the same CMS release.

33602

Valve closure

Pulmonary valve

No office rate

Use 33600 when the valve-closure operation is performed with cardiopulmonary bypass. Use 33602 for the related procedure performed without bypass.

33641

ASD repair

Secundum defect with bypass

No office rate

33641 addresses surgical repair of an atrial septal defect, not closure of a cardiac valve.

Compare 33600 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.

3 of 3 payment localities

Office and facility base rates · shared scale starting at $0

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33600 billing questions

How does 33600 differ from 33602?

33600 is the closure procedure performed with cardiopulmonary bypass; 33602 is the related no-bypass variant. The operative report must support the approach performed.

Is 33600 a valve repair or replacement?

It represents surgical closure of a cardiac valve, not reconstruction to preserve valve function or prosthetic valve replacement. Choose a repair or replacement code when that is what the surgeon performed.

Can modifier 50 be reported?

No. CMS identifies bilateral adjustment as inappropriate for this code.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.

What postoperative care is included?

The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

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.

RVUs for 33600PPRRVU2026_Oct_nonQPP.csv, line 4,008 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet