Amniocyte plus, per 0.5 cc
Q4242 identifies Amniocyte Plus and uses a 0.5-cc unit. Q4243 identifies AmchoMatrix and uses a square-centimeter unit.
CMS RVU26D · Effective 2026-10-01
Report AmchoMatrix by the square centimeter when this wound product is furnished with a primary wound-application procedure. Compare Q4243 office and facility rates across CMS payment localities in Alabama.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
Alabama has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
$111.35
1 of 1 localities have a supported rate.
Payment area: Alabama
One mapped payment locality.
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Wound care
Report AmchoMatrix by the square centimeter when this wound product is furnished with a primary wound-application procedure.
Q4243 identifies AmchoMatrix, a wound product supplied and measured by area. It may be used in wound care when a clinician applies the product to a wound as part of a primary procedure. Wound-care clinicians, podiatrists, and surgeons may encounter it in outpatient wound clinics, offices, or hospital settings. The product code represents the material, not the clinician’s wound preparation or application service.
Report the quantity in square centimeters and pair Q4243 with the primary procedure for the wound application. The record should identify the product and document the treated wound and the amount furnished. CMS classifies Q4243 as an add-on code: it is billed only with a primary procedure and paid within that procedure’s global period. It is also a technical-component-only code; 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.
Office rates for Alabama, from the same CMS release.
Amniocyte plus, per 0.5 cc
Q4242 identifies Amniocyte Plus and uses a 0.5-cc unit. Q4243 identifies AmchoMatrix and uses a square-centimeter unit.
Q4232 identifies Corplex, while Q4243 identifies AmchoMatrix. Both are measured per square centimeter, so distinguish them by the product furnished.
Q4247 identifies the Amniotext patch and is measured per square centimeter. Q4243 is the AmchoMatrix product; choose according to the product used.
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Office / nonfacility
$111.35
Facility
Unavailable
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Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for Q4243 in Alabama.
PPRRVU2026_Oct_nonQPP.csv
18,332
GPCI2026.csv
4
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.00 | × 1.000 | 0.0000 |
| Practice expense | 3.81 | × 0.875 | 3.3338 |
| Malpractice | 0.00 | × 0.566 | 0.0000 |
| Total RVUs | 3.3338 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Alabama$111.35
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0 | 1 |
| Practice expense | 3.81 | 0.875 |
| Malpractice | 0 | 0.566 |
(0 × 1 + 3.81 × 0.875 + 0 × 0.566) × $33.4009 = $111.35
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
Q4243 identifies AmchoMatrix and is measured per square centimeter. Q4242 identifies Amniocyte Plus and is measured per 0.5 cc; select the code for the product actually furnished.
No. CMS identifies it as an add-on code that must be billed with a primary procedure. For wound application, the primary procedure may be selected from the applicable skin-substitute application codes.
Document that AmchoMatrix was used, identify the treated wound, and record the amount furnished in square centimeters.
No. CMS classifies Q4243 as technical-component-only; a separate code covers interpretation.
Q4243 is paid within the global period of the primary procedure with which it is reported.
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.