HCPCS Q4170: Wound productMedicare rate & RVUs in Oregon
Reports Cygnus amniotic membrane material by square centimeter when supplied for wound treatment alongside the applicable primary application procedure.
Medicare pays $126.75–$141.38 for Q4170 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 Q4170 covers
Q4170 identifies Cygnus, an amniotic membrane wound product, measured by square centimeter. It is typically reported by wound-care clinicians, podiatrists, surgeons, or other practitioners treating chronic or nonhealing wounds in an office wound clinic or outpatient facility. The product code represents the material; it is distinct from the procedure used to prepare the wound and apply the product.
Report Q4170 only with a primary procedure, such as an applicable skin-substitute application code selected for the wound site and treated area. Units follow the product’s square-centimeter billing measure, supported by documentation of the product used, its size, and the amount applied. CMS classifies Q4170 as an add-on code paid within the primary procedure’s global period. It is 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 Q4170 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $141.38 | Unavailable |
| Rest Of Oregon | $126.75 | Unavailable |
How the Q4170 rate is calculated
Each of Q4170’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 · Q4170
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 Q4170
The CMS indicators that decide how Q4170 is paid alongside other services.
CMS payment indicators · Q4170
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. |
Q4170 compared with similar codes
Compare codes
Q4170 vs Q4169 vs Q4171 vs 15271 vs 15275: national Medicare rates
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How to choose
- Q4169Wound product
- Q4169 identifies Artacent Wound, not Cygnus. Select the product-specific code for the material actually used.
- Q4171Interfyl, 1 mg
- Q4171 identifies Interfyl and is measured in milligrams; Q4170 identifies Cygnus and is measured by square centimeter.
- 15271Skin substitute graft
- 15271 reports the application procedure for qualifying trunk or limb wounds; Q4170 reports the Cygnus material used with a primary procedure.
- 15275Skin substitute
- 15275 reports application at specified hands, feet, head, or neck sites; Q4170 identifies the product rather than the application site.
Q4170 billing questions
Can Q4170 be billed by itself?
No. CMS identifies it as an add-on code that must be billed with a primary procedure.
How should the units be calculated?
Report the Cygnus material using its square-centimeter unit. Documentation should support the product size and amount applied.
Does Q4170 include the application procedure?
No. Q4170 identifies the material; report the applicable primary application procedure separately.
What documentation supports Q4170?
Record that Cygnus was used, the product size, the wound treated, and the square centimeters applied, along with the primary procedure.
Is Q4170 a professional interpretation code?
No. CMS classifies it as technical-component-only and indicates that 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
Show the CMS file lines behind this rate
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