HCPCS Q4157: Wound productMedicare rate & RVUs in Guam

Report Q4157 for each square centimeter of Revitalon supplied for wound coverage, alongside the primary procedure associated with its application.

CMS RVU26DEffective Oct 1, 20261 payment locality

Medicare pays $144.69 for Q4157 in the office in Guam (Hawaii, Guam). Which amount applies depends on the service address.

$144.69Office (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.

We’ll open Q4157 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Guam
  2. What Q4157 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 Q4157 covers

Q4157 identifies Revitalon by the square centimeter for wound-care use. It represents the product rather than the work of preparing or treating the wound. A wound-care clinician may use it when Revitalon is supplied as part of a wound-coverage service; the application procedure and the product are distinct reporting elements. The record should identify Revitalon and document the wound and the area for which the product was supplied.

Report the quantity in square-centimeter units and bill Q4157 only with a primary procedure. The CMS payment rule places payment for this add-on within the primary procedure’s global period, rather than treating the product code as a standalone service. Q4157 is a technical-component-only code; a separate code covers interpretation. Documentation should support the product billed, the measured area, and the associated primary procedure.

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.

Q4157 in Hawaii, Guam

Q4157 office and facility rates by payment locality
Payment localityOfficeFacility
Hawaii, Guam$144.69Unavailable

How the Q4157 rate is calculated

Each of Q4157’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 · Q4157

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 0.00Practice expense 3.81Malpractice 0.00

3.8100 adjusted RVUs×$33.4009 conversion factor=$127.26

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

Payment rules and modifiers for Q4157

The CMS indicators that decide how Q4157 is paid alongside other services.

CMS payment indicators · Q4157

Wound product

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
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/technical3Technical component only.

Q4157 compared with similar codes

Compare codes

Q4157 vs Q4158 vs Q4159 vs Q4152: national Medicare rates

Swap in your local Medicare rate.

  • Q4157
    Wound product · 0 wRVU
    $127.26
  • Q4158
    Wound matrix · 0 wRVU
    $127.26+$0.00
  • Q4159
    Wound product · 0 wRVU
    $127.26+$0.00
  • Q4152
    Skin substitute · 0 wRVU
    $127.26+$0.00

How to choose

Q4158Wound matrix
Q4158 identifies Kerecis omega-3 per square centimeter; Q4157 identifies Revitalon per square centimeter. Choose according to the product supplied.
Q4159Wound product
Q4159 identifies Affinity, while Q4157 identifies Revitalon. Both are measured by area, but the product determines the code.
Q4152Skin substitute
Q4152 identifies Dermapure per square centimeter. Use Q4157 only when the product supplied is Revitalon.

Q4157 billing questions

Can Q4157 be billed by itself?

No. CMS identifies it as an add-on code, so it is billed only with a primary procedure.

How should units be reported?

The descriptor is per square centimeter. Document the area represented by the Revitalon product and report the corresponding square-centimeter quantity.

Does Q4157 include the wound application procedure?

No. Q4157 identifies the Revitalon product; report the associated primary procedure separately when supported by the service.

How does the global-period rule affect payment?

The add-on is paid within the global period of its primary procedure. It is not a standalone payment separate from that procedure’s global period.

Does Q4157 include interpretation?

No. CMS classifies Q4157 as technical-component-only; a separate code covers interpretation.

How is Q4157 different from Q4158?

Q4157 identifies Revitalon per square centimeter, while Q4158 identifies Kerecis omega-3 per square centimeter. Select the code for the product actually supplied.

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 Q4157PPRRVU2026_Oct_nonQPP.csv, line 18,250 (RVU26D)
Geographic factors for Hawaii, GuamGPCI2026.csv, line 46 (RVU26D)

Open CMS sourceHow we calculate rates

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