HCPCS Q4352: Wound matrixMedicare rate & RVUs in Oregon
Q4352 reports Overlay SL Matrix by square centimeter when the product is provided for wound treatment with a qualifying primary application procedure.
Medicare pays $126.75–$141.38 for Q4352 in the office in Oregon, from Rest Of Oregon to Portland. 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 Q4352 covers
Overlay SL Matrix is a wound matrix product used as a covering in wound care. Q4352 identifies the product supplied, rather than the clinician’s work applying it. It may be encountered in outpatient wound clinics, podiatry practices, and surgical settings when a clinician treats a wound with a skin-substitute application procedure.
Report the product only with the required primary procedure, and calculate the quantity using the square-centimeter unit in the descriptor. Documentation should identify Overlay SL Matrix as the product used and support the quantity reported, such as through product records and the treated wound area. CMS classifies Q4352 as a technical-component-only code; a separate code covers interpretation. CMS also classifies it as an add-on code, so it is billed with a primary procedure and paid within that procedure’s global period.
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 Q4352 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $141.38 | Unavailable |
| Rest Of Oregon | $126.75 | Unavailable |
How the Q4352 rate is calculated
Each of Q4352’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 · Q4352
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense3.81
3.81 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
3.8100
Conversion factor
$33.4009
Medicare rate
$127.26
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for Q4352
The CMS indicators that decide how Q4352 is paid alongside other services.
CMS payment indicators · Q4352
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. |
Q4352 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- Q4351Wound matrix
- Q4351 identifies Enclose TL Matrix; Q4352 identifies Overlay SL Matrix. Select the code that matches the product actually used.
- Q4353Wound matrix
- Q4353 identifies Xceed TL Matrix, not Overlay SL Matrix. The distinction is the product supplied, rather than wound size or treatment complexity.
- 15271Skin substitute graft
- 15271 reports the wound application service for qualifying trunk, arm, or leg wounds; Q4352 reports the Overlay SL Matrix product used with a primary procedure.
Q4352 billing questions
What should be reported with Q4352?
Report it with the primary wound application procedure for which the product was used. Q4352 represents Overlay SL Matrix, not the application service.
How is the quantity determined?
The descriptor is per square centimeter. Documentation should support the amount of Overlay SL Matrix used and the wound area treated.
Can Q4352 be billed by itself?
No. CMS identifies Q4352 as an add-on code that must be billed with a primary procedure and is paid within that procedure’s global period.
Does Q4352 include interpretation?
No. CMS classifies it as technical-component-only; a separate code covers interpretation.
How is Q4352 distinguished from Q4351 or Q4353?
These codes identify different matrix products. Report Q4352 when the product used is Overlay SL Matrix, rather than selecting among them by wound size or severity.
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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