CPT code 33413: Aortic valve replacement, annular enlargement, transventricular approach2026 Medicare rate & RVUs in Connecticut

In Connecticut, Medicare pays $3,198.33 for 33413 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 33413 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 33413 covers

This code describes open surgical replacement of the aortic valve combined with enlargement of the aortic annulus using a transventricular approach. A cardiothoracic surgeon may perform this operation when the annulus must be enlarged to accommodate the replacement valve. The procedure involves work beyond replacing the valve alone, including the annular enlargement and ventricular approach.

Report 33413 when the operative report supports both annular enlargement and the transventricular approach; valve replacement by itself does not establish this code. Documentation should identify the replacement, the enlargement, and the approach. Medicare assigns a 90-day global period, including the day-before preoperative visit and related postoperative care for 90 days. 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 multiple procedure reduction. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation. 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 Connecticut compares for 33413

Across 109 of 109 payment localities, the facility rate for 33413 runs from $2,666.40 in Wisconsin to $3,818.81 in Alaska. Connecticut pays $3,198.33. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

33413 rates by state

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

See 33413 in every payment locality

How the 33413 rate is calculated

Each of 33413’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 33413

33413 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 33413

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

How 33413 has changed in Connecticut

Price 33413 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

• Ansonia
• Ball Pond
• Baltic
• Bantam
• Bethel
• Bethlehem Village
• Bigelow Corners
• Blue Hills

Browse all communities in Connecticut

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