HCPCS Q4193: Wound productMedicare rate & RVUs in Texas
Report Q4193 for each square centimeter of Coll-e-derm furnished as wound-care material with a qualifying primary wound procedure.
Medicare pays $115.80–$134.64 for Q4193 in the office in Texas, from Beaumont to Austin. 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 Q4193 covers
Q4193 identifies the Coll-e-derm product supplied for wound treatment, rather than the work of preparing or treating the wound. It may be used in outpatient wound clinics, physician offices, or facility settings when a clinician applies the product during care of a wound such as a chronic ulcer. The associated application service is reported separately; Q4193 represents the product quantity, measured in square centimeters.
Report this code only with a primary procedure, using documentation that identifies Coll-e-derm, the wound treated, and the quantity furnished. Reconcile the billed square-centimeter units with the product used and the wound area treated. CMS treats this as an add-on code paid within the primary procedure’s global period, so it is not reported alone. 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 Q4193 pays more and less in Texas
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
8 payment localities
$115.80 to $134.64
8 of 8 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Austin | $134.64 | Unavailable |
| Beaumont | $115.80 | Unavailable |
| Brazoria | $126.11 | Unavailable |
| Dallas | $126.75 | Unavailable |
| Fort Worth | $125.48 | Unavailable |
| Galveston | $126.37 | Unavailable |
| Houston | $126.37 | Unavailable |
| Rest Of Texas | $120.77 | Unavailable |
How the Q4193 rate is calculated
Each of Q4193’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 · Q4193
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 Q4193
The CMS indicators that decide how Q4193 is paid alongside other services.
CMS payment indicators · Q4193
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. |
Q4193 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 15271Skin substitute graft
- 15271 reports the wound application service for qualifying trunk, arm, or leg wounds; Q4193 identifies the Coll-e-derm product supplied with a primary procedure.
- Q4194Wound product
- Q4194 identifies Novachor per square centimeter, while Q4193 identifies Coll-e-derm. Select the product-specific code matching the material furnished.
- Q4195Wound matrix
- Q4195 identifies PuraPly per square centimeter. It is a different product-specific supply code, not another name for Coll-e-derm.
Q4193 billing questions
Can Q4193 be billed by itself?
No. CMS identifies it as an add-on code, so report it only with the applicable primary wound procedure.
Does Q4193 include the wound application service?
No. Q4193 identifies the Coll-e-derm product; report the applicable wound application procedure separately.
How should the quantity be reported?
The descriptor is per square centimeter. Document the product quantity furnished and ensure the billed units agree with the recorded use.
What documentation supports Q4193?
Record the product as Coll-e-derm, the wound treated, the quantity used, and the associated primary procedure.
Is interpretation included in Q4193?
No. CMS classifies Q4193 as technical-component-only and indicates that a separate code covers interpretation.
Which application code should accompany Q4193?
Select the primary application procedure that matches the treated body site and service. Q4193 must accompany that primary procedure.
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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