HCPCS Q4340: Skin substituteMedicare rate & RVUs in Oregon
Report Q4340 for Simpligraft used as wound graft material, with units reflecting the square-centimeter quantity and a primary wound procedure.
Medicare pays $126.75–$141.38 for Q4340 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 Q4340 covers
Q4340 identifies Simpligraft, a product-specific graft supply measured by square centimeters. Wound-care clinicians and surgeons may apply the graft to a prepared wound bed when graft coverage is part of wound treatment. The product line identifies the material used; it is distinct from the service of preparing the wound and applying the graft.
Report Q4340 only with a primary procedure, and base the units on the documented square-centimeter quantity used. Record the product, wound site, amount applied, and the primary procedure supporting the supply line. CMS treats Q4340 as an add-on paid within the primary procedure’s global period. Its CMS component designation is technical-only; a separate code covers interpretation.
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 Q4340 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $141.38 | Unavailable |
| Rest Of Oregon | $126.75 | Unavailable |
How the Q4340 rate is calculated
Each of Q4340’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 · Q4340
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 Q4340
The CMS indicators that decide how Q4340 is paid alongside other services.
CMS payment indicators · Q4340
Skin substitute
| 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. |
Q4340 compared with similar codes
Compare codes
Q4340 vs Q4341 vs Q4331 vs Q4332: national Medicare rates
Swap in your local Medicare rate.
How to choose
- Q4341Wound matrix
- Q4341 identifies Simplimax; Q4340 identifies Simpligraft. Select the supply code for the product actually used.
- Q4331Wound matrix
- Q4331 identifies Axolotl graft, while Q4340 identifies Simpligraft. The product used, not wound area alone, distinguishes the codes.
- Q4332Wound graft
- Q4332 identifies Axolotl dualgraft; Q4340 identifies Simpligraft. Report the code corresponding to the documented graft product.
Q4340 billing questions
When should Q4340 be chosen over another graft supply code?
Use Q4340 when the product used is Simpligraft. Other product-specific codes identify different graft supplies; the code is not selected solely by wound size.
Can Q4340 be reported without a primary procedure?
No. CMS identifies Q4340 as an add-on that is billed only with a primary procedure.
How should units be determined?
Report the square-centimeter quantity of Simpligraft used, supported by documentation of the amount applied to the wound.
What documentation supports the Q4340 line?
Document Simpligraft as the product used, the wound site, the square-centimeter quantity, and the primary procedure performed.
Does Q4340 include interpretation?
No. CMS classifies Q4340 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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