CPT code 21743: Nuss repair, with thoracoscopy2026 Medicare rate & RVUs in Illinois

Thoracoscopic Nuss repair corrects pectus deformity through minimally invasive chest-wall reshaping and is reported when thoracoscopy is used.

CMS RVU26DEffective Oct 1, 20264 payment localities

CMS doesn’t publish an office rate for 21743 in Illinois.

—Office (non-facility)
—Hospital 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.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 9 sections
  1. Rate in Illinois
  2. What 21743 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 21743 covers

This code reports minimally invasive repair of pectus excavatum or carinatum using the Nuss approach with thoracoscopic visualization. The surgeon reshapes the chest wall by placing a curved support bar behind the sternum under thoracoscopic guidance. A thoracic or pediatric surgeon typically performs the operation in an operating room. Thoracoscopy distinguishes this service from the Nuss repair reported without thoracoscopy.

Medicare assigns physician fee schedule status C: no national payment amount is published, and the Medicare Administrative Contractor prices each claim. The operation has a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and the standard multiple-procedure reduction applies to the others. Modifier 50 is inappropriate; an assistant at surgery may be paid, and co-surgeons require 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.

Where 21743 pays more and less in Illinois

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

21743 office and facility rates by payment locality
Payment localityOfficeFacility
Chicago, ILUnavailableUnavailable
East St. Louis, ILUnavailableUnavailable
Rest of IllinoisUnavailableUnavailable
Suburban Chicago, ILUnavailableUnavailable

How the 21743 rate is calculated

Each of 21743’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 · 21743

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense0.00

0.00 RVUs× 1.000 GPCI

Malpractice0.00

0.00 RVUs× 1.000 GPCI

Adjusted RVUs

0.0000

Conversion factor

$33.4009

Medicare rate

$0.00

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

Payment rules and modifiers for 21743

21743 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 21743

Nuss repair, with thoracoscopy

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)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 21743

Nuss repair, with thoracoscopy

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

21743 without 51 · national facility

$0.00

Nuss repair, with thoracoscopy

21743-51 · Second procedure: 50%

$0.00

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

21743 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 21743

    Nuss repair, with thoracoscopy0 wRVU

    Not priced

  • 21742

    Nuss repair, without thoracoscopy0 wRVU

    Not priced

  • 21740

    Sternal reconstruction, open reconstruction17.13 wRVU

    Not priced

  • 21750

    Sternal repair, postoperative separation11.12 wRVU

    Not priced

How to choose

21742Nuss repairWithout thoracoscopy
Choose 21743 when thoracoscopy is used during the Nuss repair; 21742 describes the Nuss approach without thoracoscopy.
21740Sternal reconstructionOpen reconstruction
21740 describes sternal reconstruction for deformity without specifying the minimally invasive Nuss approach. Use 21743 for thoracoscopically assisted Nuss repair.
21750Sternal repairPostoperative separation
21750 addresses separation of the sternum, not repair of a pectus deformity using a Nuss procedure.

21743 billing questions

How does 21743 differ from 21742?

Both describe a minimally invasive Nuss repair. Use 21743 when thoracoscopy is used; 21742 is the corresponding code without thoracoscopy.

Is thoracoscopy separately reported with 21743?

Thoracoscopy is part of the procedure described by 21743. Do not use 21742 for the same repair when thoracoscopy is performed.

Does Medicare publish a national payment amount for 21743?

No. Physician fee schedule status C means the Medicare Administrative Contractor prices the claim.

What global period applies?

The procedure has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care.

Can modifier 50 be used?

No. Medicare's bilateral adjustment does not apply to this code, and modifier 50 is inappropriate.

Can an assistant or co-surgeon be reported?

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

Open CMS sourceHow we calculate rates

Did this answer your question about what 21743 pays in Illinois?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put 21743 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist