HCPCS code Q4159: Wound product2026 Medicare rate & RVUs in Utah
Q4159 reports Affinity, a placental tissue wound product, by square centimeter when supplied with a separately reported wound-graft application procedure.
Medicare pays $119.62 for Q4159 in the office in Utah (Utah). 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 Q4159 covers
Q4159 identifies Affinity, a placental tissue-derived wound product used as a covering in wound care. It may be used in settings such as hospital outpatient departments and wound clinics, with application performed by clinicians treating wounds, including surgeons, podiatrists, and other wound-care practitioners. The product code identifies the material, not the procedure that places it on the wound.
Report Q4159 with the primary skin-substitute application procedure, such as the appropriate code from the 15271–15278 family, selected by wound site and treated area. Units are based on the product’s square-centimeter measure; the record should identify Affinity and support the quantity reported with the wound and application details. CMS designates Q4159 as an add-on code, payable only with a primary procedure and within that procedure’s global period. CMS also classifies it as technical-component-only, with interpretation represented 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.
Q4159 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | $119.62 | Unavailable |
How the Q4159 rate is calculated
Each of Q4159’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 · Q4159
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 Q4159
The CMS indicators that decide how Q4159 is paid alongside other services.
CMS payment indicators · Q4159
Wound product
| 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. |
Q4159 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 15271Skin substitute graft
- 15271 reports the application procedure for qualifying trunk, arm, or leg wounds; Q4159 identifies the Affinity product used with an application procedure.
- Q4158Wound matrix
- Q4158 identifies Kerecis Omega3, not Affinity. Select the product-specific code matching the material supplied.
- Q4160Wound product
- Q4160 identifies NuShield rather than Affinity. The shared square-centimeter measure does not make the product codes interchangeable.
Q4159 billing questions
Does Q4159 report the Affinity product or its application?
It identifies the Affinity wound product. Report the appropriate skin-substitute application procedure separately for placement.
Which application procedure is reported with Q4159?
Choose the applicable code from the 15271–15278 family based on the wound site and treated area. Q4159 must be reported with a primary procedure.
How are Q4159 units determined?
The code is measured per square centimeter. Document the Affinity product and the quantity supporting the units billed.
Can Q4159 be billed by itself?
No. CMS designates it as an add-on code that is billed with a primary procedure and paid within that procedure’s global period.
Does Q4159 include interpretation?
No. CMS classifies Q4159 as technical-component-only; interpretation is represented by a separate code.
Can Q4159 be used for another wound product measured by area?
No. Q4159 identifies Affinity specifically. Use the HCPCS code matching the product actually supplied, even when another product is also measured per square centimeter.
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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