CPT code 33427: Mitral valve repair, congenital valve repair2026 Medicare rate & RVUs in Puerto Rico

In Puerto Rico, Medicare pays $2,273.08 for 33427 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 33427 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 33427 covers

This code represents open surgical repair of a congenitally abnormal mitral valve during an operation using cardiopulmonary bypass. A cardiac surgeon may reconstruct the valve to address congenital leaflet or supporting-structure abnormalities while preserving the patient's native valve. The service is typically performed in a hospital operating room for patients with congenital mitral valve disease; it is distinct from transcatheter repair and valve replacement.

Select the code based on the operation actually performed and documentation identifying the congenital mitral valve problem and repair. The operative report should describe the valve reconstruction and use of bypass. This major surgery includes 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 multiple-procedure reduction. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Report one service for the mitral repair; modifier 50 is not appropriate.

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 Puerto Rico compares for 33427

Across 109 of 109 payment localities, the facility rate for 33427 runs from $2,010.93 in Wisconsin to $2,875.67 in Alaska. Puerto Rico pays $2,273.08. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

33427 rates by state

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

See 33427 in every payment locality

How the 33427 rate is calculated

Each of 33427’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 33427

33427 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 33427

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

How 33427 has changed in Puerto Rico

Price 33427 for an earlier date of service

Where the Puerto Rico rate applies

Puerto Rico is a Medicare payment area, not a city. Our Census mapping connects it to 292 cities and communities in Puerto Rico. Some span more than one payment area; confirm with the service ZIP.

• Aceitunas
• Adjuntas
• Aguada
• Aguadilla
• Aguas Buenas
• Aguas Claras
• Aguilita
• Aibonito

Browse all communities in Puerto Rico

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