HCPCS Q4348: Wound matrixMedicare rate & RVUs in Oregon
Reports Sentry SL matrix supplied for wound treatment, measured by area and billed alongside the primary procedure that applies the matrix.
Medicare pays $126.75–$141.38 for Q4348 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 Q4348 covers
Q4348 identifies Sentry SL matrix supplied by area for wound treatment. A wound-care physician, surgeon, podiatrist, or other qualified clinician may apply the matrix to a prepared wound in an office or outpatient procedural setting. This code represents the named product, not the clinician’s wound assessment or the application service. The record should identify the treated wound and the area of Sentry SL matrix used.
Report Q4348 only with the applicable primary procedure; CMS treats it as an add-on paid within that procedure’s global period. Submit the quantity in square centimeters and retain documentation linking the product and amount to the wound treated. CMS classifies the code as technical-component-only, with interpretation covered by a separate code. The application procedure and product supply are distinct reporting elements, so the record should support both the primary service and the product quantity.
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 Q4348 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $141.38 | Unavailable |
| Rest Of Oregon | $126.75 | Unavailable |
How the Q4348 rate is calculated
Each of Q4348’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 · Q4348
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 Q4348
The CMS indicators that decide how Q4348 is paid alongside other services.
CMS payment indicators · Q4348
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. |
Q4348 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- Q4347Wound matrix
- Q4347 identifies Rampart DL matrix; Q4348 identifies Sentry SL. The product actually supplied determines which code to report.
- Q4349Wound matrix
- Q4349 identifies Mantle DL matrix, not Sentry SL. Both are reported by square centimeter, so distinguish them by the product used.
- Q4350Wound matrix
- Q4350 identifies Palisade DM matrix. Choose Q4348 only when Sentry SL is the matrix supplied.
Q4348 billing questions
How is Q4348 different from another wound matrix code?
Q4348 identifies Sentry SL specifically. Select the product code that matches the matrix actually supplied and used; nearby matrix codes identify different products.
Can Q4348 be reported by itself?
No. CMS identifies it as an add-on that must be billed with the applicable primary procedure, and payment falls within that procedure’s global period.
How should the quantity be reported?
Use the square-centimeter quantity supported by the amount of Sentry SL matrix used. Document the wound and area treated.
Does Q4348 include the wound application service?
No. Q4348 identifies the matrix product; report the applicable primary procedure for the service that applies it.
How does the technical-component rule affect billing?
CMS classifies Q4348 as technical-component-only. A separate code covers interpretation.
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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