HCPCS code Q4239: Amniotic graft, amnio-Maxx or Lite, per square centimeter2026 Medicare rate & RVUs in Louisiana
Report Q4239 by square centimeter when Amnio-Maxx or Amnio-Maxx Lite is used during a separately reported wound graft application.
Medicare pays $112.62–$119.75 for Q4239 in the office in Louisiana, from Rest of Louisiana to New Orleans, LA. 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.
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On this page 9 sections
What Q4239 covers
Q4239 identifies the Amnio-Maxx or Amnio-Maxx Lite material used in a wound graft application. A wound-care clinician, podiatrist, or surgeon may place the material over a prepared chronic wound, such as a foot or lower-leg ulcer, in a clinic or outpatient procedure setting. The code identifies the product rather than the clinician’s work of applying it.
Select Q4239 only when the treatment record identifies Amnio-Maxx or Amnio-Maxx Lite. Report units in square centimeters, supported by the amount of material used and the documented wound dimensions; the number of wounds alone does not determine units. CMS classifies Q4239 as an add-on code, so it is billed with the primary application procedure and paid within that procedure’s global period. CMS also classifies it as technical-component-only: Q4239 does not represent professional interpretation, which is 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 Q4239 pays more and less in Louisiana
| Payment locality | Office | Facility |
|---|---|---|
| New Orleans, LA | $119.75 | Unavailable |
| Rest of Louisiana | $112.62 | Unavailable |
How the Q4239 rate is calculated
Each of Q4239’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 · Q4239
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 Q4239
The CMS indicators that decide how Q4239 is paid alongside other services.
CMS payment indicators · Q4239
Amniotic graft, amnio-Maxx or Lite, per square centimeter
| 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. |
Q4239 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- Q4238Derm-MaxxPer square centimeter
- Both are measured per square centimeter, but Q4238 identifies Derm-Maxx. Choose Q4239 only when the record identifies Amnio-Maxx or Amnio-Maxx Lite.
- Q4235Wound tissue productAmniorepair or Altiply
- Q4235 identifies AmnioRepair or AltiPly. Select the product code from the documented material, even though both codes use square-centimeter units.
- Q4240CorecyteTopical, per 0.5 cc
- Q4240 identifies topical-only CoreCyte measured in half-cubic-centimeter units. Q4239 identifies Amnio-Maxx or Amnio-Maxx Lite measured by square centimeter.
Q4239 billing questions
Can Q4239 be billed without an application procedure?
No. CMS identifies Q4239 as an add-on code that must be billed with a primary procedure.
How are Q4239 units determined?
Each unit represents one square centimeter of Amnio-Maxx or Amnio-Maxx Lite material. Document the product used, the area of material applied, and the wound dimensions.
Does Q4239 include the work of placing the graft?
No. Q4239 identifies the graft material; report the appropriate primary application procedure for the clinician’s placement work.
When is Q4238 used instead of Q4239?
Q4238 identifies Derm-Maxx. Use Q4239 when the documented product is Amnio-Maxx or Amnio-Maxx Lite.
Does Q4239 include professional interpretation?
No. CMS classifies Q4239 as technical-component-only and assigns interpretation to a separate code.
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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