Billing code 33786: Truncus repairMedicare rate & RVUs in Delaware
Definitive truncus arteriosus repair separates pulmonary blood flow from the common arterial trunk and establishes a route from the right ventricle to the lungs.
CMS doesn’t publish an office rate for 33786 in Delaware.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 8 sections
What 33786 covers
This code represents open repair of truncus arteriosus, a congenital defect in which the pulmonary arteries arise from a common arterial trunk. The operation separates the pulmonary arteries from that trunk, directs left ventricular flow through the trunk to the systemic circulation, and establishes right-ventricle-to-pulmonary-artery continuity, commonly with a conduit. A congenital cardiac surgeon typically performs the repair in a hospital operating room, often in infancy or childhood.
Select the code from the definitive operation documented, not from the diagnosis alone. The operative report should identify the arterial anatomy and describe the separation and reconstruction performed. The service has a 90-day global period that includes the day-before preoperative visit and 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% reduction. Report the single repair without modifier 50. Assistant-at-surgery payment may be made; 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.
33786 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | Unavailable | $2,076.21 |
How the 33786 rate is calculated
Each of 33786’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 · 33786
RVUs × geographic indexes × conversion factor
Work40.82
40.82 RVUs× 1.000 GPCI
Practice expense12.03
12.03 RVUs× 1.000 GPCI
Malpractice10.29
10.29 RVUs× 1.000 GPCI
Adjusted RVUs
63.1400
Conversion factor
$33.4009
Medicare rate
$2,108.93
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 33786
33786 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 33786
Truncus repair
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 33786
Truncus 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.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
33786 without 51 · national facility
$2,108.93
Truncus repair
33786-51 · Second procedure: 50%
$1,054.47
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%).
33786 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 33788Pulmonary artery revision
- 33788 is for pulmonary artery revision. Use 33786 for definitive repair of truncus arteriosus, not simply because the operation involves pulmonary arteries.
- 33770TGA repair
- 33770 is a repair for transposition of the great arteries without surgical enlargement of a ventricular septal defect. It is not the truncus arteriosus repair described by 33786.
- 33771TGA repair
- 33771 is a transposition repair involving surgical enlargement of a ventricular septal defect. The underlying anatomy and repair differ from truncus arteriosus repair.
- 33782Nikaidoh repair
- 33782 describes a Nikaidoh procedure for transposition-related anatomy, not repair of a common arterial trunk.
33786 billing questions
How is this distinguished from pulmonary artery revision?
This code describes definitive repair of truncus arteriosus. Code 33788 describes revision of the pulmonary artery, rather than initial repair of the common arterial trunk.
Is closure of the ventricular septal defect separately reported?
The septal closure may be part of the complete truncus repair, which routes left ventricular blood to the systemic artery. Review the operative work and applicable coding edits before considering a separate code.
Should modifier 50 be appended?
No. The operation repairs a single common arterial trunk; report it without modifier 50.
How are other same-session procedures paid?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50% when performed in the same session.
What supports assistant or co-surgeon reporting?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
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
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