HCPCS Q4163: Skin substituteMedicare rate & RVUs in Oregon
Reports Woundex or Bioskin wound product by square centimeter when supplied with a qualifying primary wound procedure.
Medicare pays $126.75–$141.38 for Q4163 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 Q4163 covers
Q4163 identifies Woundex or Bioskin product used for wound coverage, measured by the area supplied. A wound-care clinician, surgeon, or podiatrist may use it during treatment of a wound in an outpatient wound clinic, physician office, or hospital outpatient department. The code represents the product, not wound preparation or placement itself; those services are represented by the applicable primary procedure.
Report units based on the square-centimeter quantity used, and document the product, treated wound area, and amount applied in the procedure record. CMS classifies Q4163 as an add-on code, so it must accompany a primary procedure and its payment falls within that procedure’s global period. CMS also classifies it as technical-component-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 Q4163 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $141.38 | Unavailable |
| Rest Of Oregon | $126.75 | Unavailable |
How the Q4163 rate is calculated
Each of Q4163’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 · Q4163
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 Q4163
The CMS indicators that decide how Q4163 is paid alongside other services.
CMS payment indicators · Q4163
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. |
Q4163 compared with similar codes
Compare codes
Q4163 vs Q4162 vs Q4164 vs Q4158: national Medicare rates
Swap in your local Medicare rate.
How to choose
- Q4162Wndex flw, bioskn flw, 0.5cc
- Q4162 identifies Woundex or Bioskin FLW by volume; Q4163 identifies Woundex or Bioskin by square centimeter. Use the code matching the product and unit supplied.
- Q4164Helicoll
- Q4164 identifies Helicoll rather than Woundex or Bioskin. Both use a square-centimeter unit, so the product supplied distinguishes the codes.
- Q4158Wound matrix
- Q4158 identifies Kerecis Omega3, while Q4163 identifies Woundex or Bioskin. Both are product-specific wound codes measured by square centimeter.
Q4163 billing questions
Can Q4163 be billed by itself?
No. CMS identifies it as an add-on code, so report it with the applicable primary wound procedure.
What does Q4163 identify: the product or its application?
It identifies Woundex or Bioskin product quantity. The primary procedure represents the wound service, including applicable preparation or placement.
How are units measured?
The descriptor is per square centimeter. Document the quantity used and the wound area treated.
How does Q4163 differ from Q4162?
Q4163 is for Woundex or Bioskin measured per square centimeter. Q4162 identifies the FLW versions in a volume-based unit, so the codes are not interchangeable.
What does the technical-component designation mean?
CMS classifies Q4163 as technical-component-only, with interpretation covered by 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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