HCPCS Q4183: SurgiGraftMedicare rate & RVUs in Oregon
Q4183 reports SurgiGraft by the square centimeter when the material is used with a primary wound graft procedure.
Medicare pays $126.75–$141.38 for Q4183 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 Q4183 covers
Q4183 represents SurgiGraft material measured by the square centimeter for use in wound care. It is reported for the product used with a primary procedure to apply a skin substitute graft, such as treatment of a wound in a wound-care clinic or other setting where the graft application is performed. The code identifies the material, not the clinician’s work of applying it.
Report the quantity in square centimeters and document the product used, the wound site and area treated, and the associated primary application procedure. CMS classifies Q4183 as an add-on: it is billed only with a primary procedure and paid within that procedure’s global period. Its PFS valuation contains practice expense but no physician work or malpractice value. CMS identifies it as technical-component-only, with interpretation covered by a separate code.
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 Q4183 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $141.38 | Unavailable |
| Rest Of Oregon | $126.75 | Unavailable |
How the Q4183 rate is calculated
Each of Q4183’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 · Q4183
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 Q4183
The CMS indicators that decide how Q4183 is paid alongside other services.
CMS payment indicators · Q4183
SurgiGraft
| 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. |
Q4183 compared with similar codes
Compare codes
Q4183 vs Q4186 vs Q4187 vs Q4195: national Medicare rates
Swap in your local Medicare rate.
How to choose
- Q4186EpiFix material
- Q4186 identifies EpiFix, while Q4183 identifies SurgiGraft. Select the code for the product actually used.
- Q4187Wound product
- Q4187 identifies EpiCord; it is not the product code for SurgiGraft. Choose based on the material applied.
- Q4195Wound matrix
- Q4195 identifies PuraPly rather than SurgiGraft. The product used, not the wound location, distinguishes these codes.
Q4183 billing questions
Does Q4183 describe applying the graft or the material?
It identifies SurgiGraft material by square centimeter. Report the primary procedure for the graft application separately.
Can Q4183 be billed by itself?
No. CMS identifies it as an add-on that must be reported with a primary procedure and is paid within that procedure’s global period.
How should units be determined?
Use the square-centimeter quantity for the SurgiGraft material. Documentation should support the amount used and the wound area treated.
What documentation supports Q4183?
Record the SurgiGraft product, quantity, wound site and treated area, and the primary procedure performed to apply the graft.
Does Q4183 include interpretation?
No. CMS identifies this as a technical-component-only code; 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
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