Billing code 31552: LaryngoplastyMedicare rate & RVUs in Utah

Reports reconstructive laryngoplasty using a graft to enlarge a stenotic larynx in a patient age 12 or older.

CMS RVU26DEffective Oct 1, 20261 payment locality19 Medicare services in 2024

CMS doesn’t publish an office rate for 31552 in Utah.

—Office (non-facility)
$1,283.99Hospital 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 31552 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Utah
  2. What 31552 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 31552 covers

An otolaryngologist performs this operation to reconstruct and widen a narrowed laryngeal airway using a graft. It is selected for laryngeal stenosis when reconstruction with graft material is performed, rather than an endoscopic dilation alone. The procedure is typically done in an operating room for a patient age 12 or older; the operative report should identify the stenosis and describe the graft-based reconstruction.

This is a major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% reduction. Modifier 50 is inappropriate for this code. Assistant-at-surgery payment requires documented medical necessity, and 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.

31552 in Utah

31552 office and facility rates by payment locality
Payment localityOfficeFacility
UtahUnavailable$1,283.99

How the 31552 rate is calculated

Each of 31552’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 · 31552

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 19.99Practice expense 16.84Malpractice 2.92

39.7500 adjusted RVUs×$33.4009 conversion factor=$1,327.69

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 31552

31552 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 31552

Laryngoplasty

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)0Not paid without supporting documentation.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.76/0.14Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 31552

Laryngoplasty

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.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned 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

31552 without 51 · national facility

$1,327.69

Laryngoplasty

31552-51 · Second procedure: 50%

$663.85

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

31552 compared with similar codes

Compare codes

31552 vs 31551 vs 31553 vs 31554 vs 31528: national Medicare rates

Swap in your local Medicare rate.

  • 31552
    Laryngoplasty · 19.99 wRVU
    —
  • 31551
    Laryngoplasty · 20.96 wRVU
    —
  • 31553
    Laryngoplasty · 21.45 wRVU
    —
  • 31554
    Laryngoplasty · 21.45 wRVU
    —
  • 31528
    Laryngoscopy dilation · 2.31 wRVU
    —

How to choose

31551Laryngoplasty
Use 31551 for laryngeal stenosis reconstruction in a patient age 12 or older when no graft is used; 31552 is the graft-based option.
31553Laryngoplasty
31553 is the no-graft stenosis reconstruction code for a patient younger than 12. This code is for patients age 12 or older and includes graft use.
31554Laryngoplasty
31554 also involves graft-based laryngeal stenosis reconstruction, but for patients younger than 12.
31528Laryngoscopy dilation
31528 represents endoscopic dilation of the larynx; 31552 represents graft-based reconstructive surgery for stenosis.

31552 billing questions

How does this differ from 31551?

Both address laryngeal stenosis in patients age 12 or older. Report 31552 when the reconstruction uses a graft; 31551 is the corresponding option without a graft.

When would 31528 be considered instead?

31528 describes laryngoscopy with dilation. It is the endoscopic dilation approach, rather than graft-based reconstructive laryngoplasty.

Can modifier 50 be used for bilateral stenosis?

No. CMS identifies bilateral adjustment as inappropriate for this code, so modifier 50 is not used.

What documentation supports reporting 31552?

The operative report should establish laryngeal stenosis, the patient's age, and that graft material was used in the laryngeal reconstruction.

How are assistant and co-surgeon services handled?

Assistant-at-surgery payment requires documentation of medical necessity. Co-surgeon payment requires supporting documentation, and 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
RVUs for 31552PPRRVU2026_Oct_nonQPP.csv, line 3,597 (RVU26D)
Geographic factors for UtahGPCI2026.csv, line 104 (RVU26D)

Open CMS sourceHow we calculate rates

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