HCPCS Q4437: Skin substituteMedicare rate & RVUs in Florida
Reports Revival AC skin-substitute material by square centimeter when furnished with a primary wound procedure for wound coverage.
Medicare pays $121.66–$132.47 for Q4437 in the office in Florida, from Rest Of Florida to Miami. 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 Q4437 covers
Q4437 identifies Revival AC material used as a skin substitute in wound treatment. A clinician applies the material to a prepared wound bed; wound-care physicians, podiatrists, and surgeons may furnish it in office-based or hospital outpatient wound-care settings. The code represents the product, not the clinician’s work to prepare or treat the wound.
Report the amount in square centimeters and identify the product and treated wound area in the record. CMS classifies Q4437 as an add-on code, so it must be billed with a primary procedure and is paid within that procedure’s global period. CMS also identifies it as technical-component-only, with a separate code covering interpretation; follow that component designation when reporting. The primary wound procedure and its documentation should support the application, site, and area treated.
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 Q4437 pays more and less in Florida
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$121.66 to $132.47
| Payment locality | Office | Facility |
|---|---|---|
| Fort Lauderdale | $128.91 | Unavailable |
| Miami | $132.47 | Unavailable |
| Rest Of Florida | $121.66 | Unavailable |
How the Q4437 rate is calculated
Each of Q4437’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 · Q4437
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 Q4437
The CMS indicators that decide how Q4437 is paid alongside other services.
CMS payment indicators · Q4437
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. |
Q4437 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 15271Skin substitute graft
- Q4437 identifies the Revival AC material; 15271 reports the primary application service for certain wound sites. They represent different parts of the encounter.
- 15275Skin substitute
- Q4437 identifies the product. Choose 15275 as the primary application service when the wound site and service fit that code’s site grouping.
- Q4436Skin substitute
- Q4436 identifies Renati AC membrane, while Q4437 identifies Revival AC. Select the code matching the product actually furnished.
Q4437 billing questions
Can Q4437 be billed by itself?
No. CMS classifies it as an add-on code that must be billed with a primary procedure; payment falls within that procedure’s global period.
How are units determined?
Report the Revival AC quantity by square centimeter. Document the product and the wound area treated.
Which service is the primary procedure?
Pair Q4437 with the primary wound procedure that applies the material. The correct procedure code depends on the wound site and treatment details.
Does Q4437 include interpretation?
CMS identifies Q4437 as technical-component-only and indicates that a separate code covers interpretation. Apply that component designation when reporting.
Can Q4437 be used for another skin-substitute product?
No. Q4437 identifies Revival AC; use the product-specific code that matches the material furnished.
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
Fee sheets
Put Q4437 and the rest of your codes on one sheet
Build a fee sheet from your own code list at your locality, put your payer contracts beside Medicare, and see what changed each quarter.
Build my fee sheetOr price your code list free →