HCPCS Q4292: Wound matrixMedicare rate & RVUs in Washington
Report Q4292 for each square centimeter of Lamellas wound matrix supplied with a qualifying wound-treatment procedure and applied to the treated area.
Medicare pays $134.00–$156.14 for Q4292 in the office in Washington, from Rest Of Washington to Seattle (King Cnty). Which amount applies depends on the service address.
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 9 sections
What Q4292 covers
Q4292 represents Lamellas wound matrix by the square centimeter. It is used in wound care when this specific product is supplied for application to a wound. Wound-care clinicians and surgeons may use it in settings where wound treatment and product application are performed; the product code identifies the material, not the application service itself.
Report the number of square centimeters of Lamellas represented by the documented amount used, and pair the code with the appropriate primary procedure. The record should identify the product, treated wound, quantity used, and related procedure. CMS classifies Q4292 as an add-on code: it is billed only with a primary procedure and paid within that procedure’s global period. It is technical-component-only; a separate code covers interpretation. The procedure code describes the application, while Q4292 identifies the product.
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 Q4292 pays more and less in Washington
| Payment locality | Office | Facility |
|---|---|---|
| Rest Of Washington | $134.00 | Unavailable |
| Seattle (King Cnty) | $156.14 | Unavailable |
How the Q4292 rate is calculated
Each of Q4292’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 · Q4292
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.00Practice expense 3.81Malpractice 0.00
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for Q4292
The CMS indicators that decide how Q4292 is paid alongside other services.
CMS payment indicators · Q4292
Wound matrix
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 3 | Technical component only. |
Q4292 compared with similar codes
Compare codes
Q4292 vs Q4291 vs 15271 vs 15275: national Medicare rates
Swap in your local Medicare rate.
How to choose
- Q4291Wound product
- Q4291 identifies Lamellas XT, whereas Q4292 identifies Lamellas. Select the product code from the material actually supplied.
- 15271Skin substitute graft
- 15271 reports the wound-application service for qualifying sites and area; Q4292 reports the Lamellas product by square centimeter.
- 15275Skin substitute
- 15275 is an application service for qualifying hand or foot wounds. Q4292 identifies the Lamellas product and does not replace the application code.
Q4292 billing questions
How is Q4292 different from the Lamellas XT code?
Q4292 identifies Lamellas; Q4291 identifies Lamellas XT. Report the code matching the product used, rather than choosing by wound size or location.
Can Q4292 be billed without a wound application procedure?
No. CMS identifies Q4292 as an add-on code, so it must be reported with a primary procedure.
How are units calculated?
The descriptor is per square centimeter. Document the amount of Lamellas used and report the corresponding square-centimeter quantity.
Does Q4292 include the application service?
No. Q4292 identifies the Lamellas product; report the appropriate primary procedure for the wound application.
Does Q4292 include professional interpretation?
No. CMS classifies it as technical-component-only, with a separate code covering interpretation.
What documentation supports reporting Q4292?
Document the Lamellas product, the wound treated, the quantity used in square centimeters, and the primary procedure performed.
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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