Billing code 42500: Duct repairMedicare rate & RVUs in Utah

Repair of an injured or disrupted salivary duct, reported when the surgeon restores duct continuity rather than creating a diversion.

CMS RVU26DEffective Oct 1, 20261 payment locality258 Medicare services in 2024

Medicare pays $429.74 for 42500 in the office in Utah (Utah). Which amount applies depends on the service address.

$429.74Office (non-facility)
$302.27Hospital 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 42500 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Utah
  2. What 42500 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 42500 covers

The surgeon repairs a damaged salivary duct to restore the flow of saliva, such as after a duct injury near the cheek or inside the mouth. Otolaryngologists, oral and maxillofacial surgeons, and other surgeons familiar with salivary duct anatomy may perform the repair, commonly in an operating room. The operative report should identify the duct and describe the injury and repair performed.

Report this code for the duct repair itself, not for a procedure that redirects the duct to a different opening. The record should support the need for repair and the work performed. This major surgery code 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 50% multiple procedure reduction. Modifier 50 is inappropriate for this code. An assistant at surgery is paid only when medical necessity is documented; co-surgeons and team surgery are 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.

42500 in Utah

42500 office and facility rates by payment locality
Payment localityOfficeFacility
Utah$429.74$302.27

How the 42500 rate is calculated

Each of 42500’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 · 42500

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 4.31Practice expense 8.51Malpractice 0.62

13.4400 adjusted RVUs×$33.4009 conversion factor=$448.91

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

Payment rules and modifiers for 42500

42500 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 42500

Duct 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)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.09/0.81/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 42500

Duct 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.

  • 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

42500 without 51 · national office

$448.91

Duct repair

42500-51 · Second procedure: 50%

$224.46

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

42500 compared with similar codes

Compare codes

42500 vs 42505 vs 42507 vs 42509: national Medicare rates

Swap in your local Medicare rate.

  • 42500
    Duct repair · 4.31 wRVU
    $448.91
  • 42505
    Salivary duct repair · 6.16 wRVU
    $574.16+$125.25
  • 42507
    Parotid duct diversion · 6.09 wRVU
    —
  • 42509
    Parotid duct diversion · 11.47 wRVU
    —

How to choose

42505Salivary duct repair
Both codes concern salivary duct repair. Choose based on the specific repair performed and the applicable code descriptor, rather than treating the codes as interchangeable.
42507Parotid duct diversion
This code is for duct diversion, which redirects salivary flow. Use 42500 when the surgeon repairs the duct itself.
42509Parotid duct diversion
This is a diversion procedure, not a repair. The operative report should show whether the duct was redirected or restored.

42500 billing questions

How is duct repair different from parotid duct diversion?

Repair restores an injured or disrupted duct. Diversion redirects the duct to a different opening, so select the code that matches the operation documented.

What documentation supports this code?

Document the affected duct, the injury or defect, and the steps taken to restore duct continuity. The operative note should distinguish repair from redirection.

Can modifier 50 be reported?

No. Modifier 50 is inappropriate for this code based on its descriptor and anatomy.

What postoperative care is included?

The major-surgery global period includes the day-before preoperative visit and 90 days of related postoperative care.

Can an assistant surgeon or co-surgeon be reported?

Assistant-at-surgery payment requires documentation of medical necessity. Co-surgeons and team surgery are not permitted for this code.

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 42500PPRRVU2026_Oct_nonQPP.csv, line 5,042 (RVU26D)
Geographic factors for UtahGPCI2026.csv, line 104 (RVU26D)

Open CMS sourceHow we calculate rates

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