Billing code 33720: Heart defect repairMedicare rate & RVUs in Oklahoma

Reports surgical repair of a heart defect when the operative service matches billing code 33720’s defined procedure and the record supports the work performed.

CMS RVU26DEffective Oct 1, 20261 payment locality62 Medicare services in 2024

CMS doesn’t publish an office rate for 33720 in Oklahoma.

—Office (non-facility)
$1,377.29Hospital or facility

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

We’ll open 33720 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Oklahoma
  2. What 33720 covers
  3. By payment locality
  4. How it’s calculated
  5. Payment rules
  6. Similar codes
  7. Related codes
  8. Billing questions
  9. Sources

What 33720 covers

billing code 33720 represents operative repair of a heart defect. The cardiothoracic surgeon corrects the structural abnormality during a surgical encounter; Medicare reported 2024 volume for this code was in the facility setting. The operative report should identify the defect and explain the repair performed, so the service can be matched to this code rather than another congenital heart repair code.

This major surgery 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% multiple-procedure reduction. Modifier 50 is inappropriate for this code. An assistant at surgery 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.

33720 in Oklahoma

33720 office and facility rates by payment locality
Payment localityOfficeFacility
OklahomaUnavailable$1,377.29

How the 33720 rate is calculated

Each of 33720’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 · 33720

RVUs × geographic indexes × conversion factor

Work26.58

26.58 RVUs× 1.000 GPCI

Practice expense10.59

10.59 RVUs× 1.000 GPCI

Malpractice6.69

6.69 RVUs× 1.000 GPCI

Adjusted RVUs

43.8600

Conversion factor

$33.4009

Medicare rate

$1,464.96

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

Payment rules and modifiers for 33720

33720 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 33720

Heart defect repair

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)0The 150% bilateral adjustment doesn’t apply.
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)0.09/0.84/0.07Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 33720

Heart defect repair

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

33720 without 51 · national facility

$1,464.96

Heart defect repair

33720-51 · Second procedure: 50%

$732.48

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

33720 compared with similar codes

Compare codes · National

4 codes, side by side

  • 33720

    Heart defect repair26.58 wRVU

    Not priced

  • 33702

    Heart defect repair26.56 wRVU

    Not priced

  • 33710

    Heart defect repair36.56 wRVU

    Not priced

  • 33726

    Pulmonary vein repair36.19 wRVU

    Not priced

How to choose

33702Heart defect repair
Both short CMS labels refer broadly to heart-defect repair. Use the complete billing code descriptor and operative details to distinguish the defined procedures.
33710Heart defect repair
This is another separately defined heart-defect repair code. The specific defect and repair documented in the operative report determine which descriptor fits.
33726Pulmonary vein repair
33726 identifies repair of pulmonary venous stenosis. Choose it when that specific lesion and repair are documented, rather than relying on the broader short label for 33720.

33720 billing questions

How do I choose 33720 over 33702 or 33710?

Match the documented defect and operative technique to the complete billing code descriptor for each code. The short CMS label alone is not enough to distinguish these heart-defect repair codes.

What documentation supports reporting 33720?

The operative report should identify the heart defect and describe the repair performed. That detail supports code selection among separately defined congenital heart procedures.

Can related postoperative visits be billed separately?

Related postoperative care during the 90-day global period is included. The day-before preoperative visit is also included.

Can an assistant or co-surgeon be reported?

An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation, while team surgery is not permitted.

Should modifier 50 be used for bilateral repair?

No. The descriptor and anatomy make modifier 50 inappropriate for 33720.

How are other procedures in the same session paid?

The highest-valued procedure is paid in full, and other procedures performed in that session are subject to the standard multiple-procedure reduction.

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 33720PPRRVU2026_Oct_nonQPP.csv, line 4,040 (RVU26D)
Geographic factors for OklahomaGPCI2026.csv, line 86 (RVU26D)

Open CMS sourceHow we calculate rates

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