HCPCS Q4368: Wound matrixMedicare rate & RVUs in Washington
Reports each square centimeter of Amchothick wound-covering material furnished with a primary wound-treatment procedure during application.
Medicare pays $134.00–$156.14 for Q4368 in the office in Washington, from Rest Of Washington to Seattle (King Cnty). 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 Q4368 covers
Q4368 identifies the Amchothick wound-covering product, reported by square centimeter. Wound-care clinicians, podiatrists, and surgeons may apply this type of material to a prepared wound bed, including during treatment of chronic ulcers. The code represents the product supplied, not the wound preparation or application procedure itself.
Report Q4368 only with a primary procedure; CMS treats it as an add-on and pays it within that procedure’s global period. The technical-component-only designation means the code covers the technical portion, with interpretation represented by a separate code. Documentation should identify Amchothick by name, the wound treated, the quantity supplied or used, and the related primary procedure. Follow the applicable product and claim instructions when translating the documented quantity into units.
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 Q4368 pays more and less in Washington
| Payment locality | Office | Facility |
|---|---|---|
| Rest Of Washington | $134.00 | Unavailable |
| Seattle (King Cnty) | $156.14 | Unavailable |
How the Q4368 rate is calculated
Each of Q4368’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 · Q4368
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 Q4368
The CMS indicators that decide how Q4368 is paid alongside other services.
CMS payment indicators · Q4368
Wound matrix
| 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. |
Q4368 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- Q4360Amniotic membrane
- Q4360 identifies Amchoplast FD, while Q4368 identifies Amchothick. Select the code for the exact product furnished.
- Q4367Amniotic tissue product
- Q4367 identifies Amniocore SL, a different product-specific code. The product name on the record determines which code applies.
- Q4369Wound covering
- Q4369 identifies Amnioplast 3 rather than Amchothick. Do not choose between them based only on the wound area or per-square-centimeter unit.
Q4368 billing questions
Can Q4368 be reported by itself?
No. CMS identifies it as an add-on code that must be billed with a primary procedure.
What distinguishes Q4368 from other per-square-centimeter wound products?
Q4368 identifies Amchothick specifically. Use the code matching the product furnished, not another product code simply because both are reported by area.
What quantity should be documented?
Document the Amchothick quantity and the wound area treated. The code descriptor is per square centimeter; apply the relevant product and claim instructions when determining units.
Does Q4368 include interpretation?
No. CMS designates Q4368 as technical-component-only and states that a separate code covers interpretation.
How does the primary procedure affect payment?
Q4368 is paid within the primary procedure’s global period and must be reported with that 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
Fee sheets
Put Q4368 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 →