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HCPCS code Q4122: Wound matrix, dermACELL AWM, per sq cm2026 Medicare rate & RVUs in Mississippi

Q4122 identifies porous DermACELL AWM supplied for wound management, reported by square centimeter alongside the primary wound procedure.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Mississippi, Medicare pays $109.57 for Q4122 in the office.

$109.57Office (non-facility)
Not available in this settingHospital or facility
−13.9%vs the national office rate ($127.26)

Check a contract rate as a % of Medicare · Q4122 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open Q4122 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What Q4122 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What Q4122 covers

Q4122 represents porous DermACELL AWM, an acellular dermal matrix used in wound management. Wound-care clinicians and surgeons may use the matrix when treating wounds such as diabetic foot or venous leg ulcers. The code identifies the product, not the wound preparation or its placement.

Report the square centimeters represented by the DermACELL AWM used, and document the product, wound site, and amount. Q4122 is an add-on code: submit it only with a primary procedure, and its payment falls within that procedure’s global period. CMS 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.

How Mississippi compares for Q4122

Across 109 of 109 payment localities, the office rate for Q4122 runs from $109.31 in Arkansas to $183.51 in Santa Clara County, CA. Mississippi pays $109.57. The RVUs are the same everywhere; the geographic indexes change the dollars.

Q4122 in Mississippi vs other payment areas
  1. Mississippi · this page$109.57
  2. Los Angeles, CA · California$150.55+$40.98
  3. Washington, DC area · District of Columbia$149.91+$40.34
  4. Miami, FL · Florida$132.47+$22.90
  5. Chicago, IL · Illinois$127.89+$18.32
  6. Manhattan, NY · New York$147.87+$38.30
  7. Alaska · Alaska$135.53+$25.96

Other areas in Mississippi first, then benchmark localities. Bars start at $0.

Every other payment area

Q4122 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$111.35—
ArkansasArkansas$109.31—
ArizonaArizona$123.31—
Bakersfield, CACalifornia$139.47—
Chico, CACalifornia$139.47—
El Centro, CACalifornia$139.47—
Fresno, CACalifornia$139.47—
Hanford, CACalifornia$139.47—

Q4122 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$109.31

$161.49

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
Q4122 office rate range by state
State / territoryOffice rate rangeLocalities
AK$135.531
AL$111.351
AR$109.311
AZ$123.311
CA$139.47–$183.5129
CO$135.401
CT$137.061
DC$149.911
DE$125.731
FL$121.66–$132.473
GA$113.51–$129.292
GU$144.691
HI$144.691
IA$116.441
ID$117.081
IL$116.19–$130.694
IN$117.971
KS$115.041
KY$113.131
LA$112.62–$119.752
MA$134.00–$151.952
MD$128.78–$149.913
ME$117.08–$126.112
MI$116.19–$122.802
MN$130.951
MO$109.70–$121.153
MS$109.571
MT$127.261
NC$118.731
ND$127.261
NE$117.461
NH$132.471
NJ$138.97–$147.622
NM$116.701
NV$127.381
NY$120.89–$151.315
OH$116.191
OK$113.641
OR$126.75–$141.382
PA$116.82–$132.472
PR$128.661
RI$131.461
SC$117.591
SD$127.261
TN$115.681
TX$115.80–$134.648
UT$119.621
VA$125.09–$149.912
VI$128.661
VT$125.981
WA$134.00–$156.142
WI$121.911
WV$110.591
WY$127.261

See Q4122 in every payment locality

How the Q4122 rate is calculated

Each of Q4122’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 · Q4122

RVUs × geographic indexes × conversion factor

Office or facility?

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.

The exact Mississippi inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

18,218

Code
Q4122
Physician work
0.00
Practice expense
3.81
Malpractice
0.00

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for Q4122 in Mississippi
ComponentRVULocality factorAdjusted
Physician work0.00× 1.0000.0000
Practice expense3.81× 0.8613.2804
Malpractice0.00× 0.7390.0000
Total RVUs3.2804
Conversion factor× 33.4009

Office rate, Mississippi$109.57

Office: (0 × 1 + 3.81 × 0.861 + 0 × 0.739) × $33.4009 = $109.57

Open Q4122 in the RVU calculator

Payment rules and modifiers for Q4122

The CMS indicators that decide how Q4122 is paid alongside other services.

CMS payment indicators · Q4122

Wound matrix, dermACELL AWM, per sq cm

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical3Technical component only.

Codes related to Q4122

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to Q4122
CodeHow it relatesOffice range, Mississippi
Primary code
15271Skin substitute graft, first 25 cm², trunk/limbsPrimary wound procedure that may be reported with the DermACELL product code.$141.95
15273Skin substitute graft, large trunk or limb wound areaAnother primary skin-substitute application procedure, selected for the treated site and wound area.$290.53
Used instead
Q4121Skin substitute, theraSkin per square centimeterTheraSkin is a different wound product, not DermACELL AWM.$109.57
Q4123AlloSkin graft, material used with graft applicationAlloSkin identifies a different wound product from DermACELL AWM.$109.57
Q4124Wound matrix, oasis tri-layer productOasis tri-layer wound matrix is a distinct product code.$109.57

How Q4122 has changed in Mississippi

Q4122 · Office / nonfacility

$109.57

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release

  1. January 1, 2026

    RVU26A

    No ratechanged to$109.57

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$109.57Not available in this settingRVU26D
2026-07-01$109.57Not available in this settingRVU26C
2026-04-01$109.57Not available in this settingRVU26B
2026-01-01$109.57Not available in this settingRVU26A
2025-10-01Separate payment rules applySeparate payment rules applyRVU25D
2025-07-01Separate payment rules applySeparate payment rules applyRVU25C
2025-04-01Separate payment rules applySeparate payment rules applyRVU25B
2025-01-01Separate payment rules applySeparate payment rules applyRVU25A
2024-10-01Separate payment rules applySeparate payment rules applyRVU24D
2024-07-01Separate payment rules applySeparate payment rules applyRVU24C
2024-04-01Separate payment rules applySeparate payment rules applyRVU24B
2024-03-09Separate payment rules applySeparate payment rules applyRVU24AR
2024-01-01Separate payment rules applySeparate payment rules applyRVU24A
2023-10-01Separate payment rules applySeparate payment rules applyRVU23D
2023-07-01Separate payment rules applySeparate payment rules applyRVU23C
2023-04-01Separate payment rules applySeparate payment rules applyRVU23B
2023-01-01Separate payment rules applySeparate payment rules applyRVU23A
2022-10-01Separate payment rules applySeparate payment rules applyRVU22D
2022-07-01Separate payment rules applySeparate payment rules applyRVU22C
2022-04-01Separate payment rules applySeparate payment rules applyRVU22B
2022-01-01Separate payment rules applySeparate payment rules applyRVU22A
2021-10-01Separate payment rules applySeparate payment rules applyRVU21D
2021-07-01Separate payment rules applySeparate payment rules applyRVU21C
2021-04-01Separate payment rules applySeparate payment rules applyRVU21B
2021-01-01Separate payment rules applySeparate payment rules applyRVU21A
2020-10-01Separate payment rules applySeparate payment rules applyRVU20D
2020-07-01Separate payment rules applySeparate payment rules applyRVU20C
2020-04-01Separate payment rules applySeparate payment rules applyRVU20B
2020-01-01Separate payment rules applySeparate payment rules applyRVU20A
2019-10-01Separate payment rules applySeparate payment rules applyRVU19D
2019-07-01Separate payment rules applySeparate payment rules applyRVU19C
2019-04-01Separate payment rules applySeparate payment rules applyRVU19B
2019-01-01Separate payment rules applySeparate payment rules applyRVU19A
2018-10-01Separate payment rules applySeparate payment rules applyRVU18D
2018-07-01Separate payment rules applySeparate payment rules applyRVU18C
2018-04-01Separate payment rules applySeparate payment rules applyRVU18B
2018-01-01Separate payment rules applySeparate payment rules applyRVU18AR1
2017-10-01Separate payment rules applySeparate payment rules applyRVU17D
2017-07-01Separate payment rules applySeparate payment rules applyRVU17C
2017-04-01Separate payment rules applySeparate payment rules applyRVU17B
2017-01-01Separate payment rules applySeparate payment rules applyRVU17A
2016-10-01Separate payment rules applySeparate payment rules applyRVU16D
2016-07-01Separate payment rules applySeparate payment rules applyRVU16C
2016-04-01Separate payment rules applySeparate payment rules applyRVU16B
2016-01-01Separate payment rules applySeparate payment rules applyRVU16A
2015-10-01Separate payment rules applySeparate payment rules applyRVU15D
2015-07-01Separate payment rules applySeparate payment rules applyRVU15C
2015-04-01Separate payment rules applySeparate payment rules applyRVU15B
2015-01-01Separate payment rules applySeparate payment rules applyRVU15A
2014-10-01Separate payment rules applySeparate payment rules applyRVU14D
2014-07-01Separate payment rules applySeparate payment rules applyRVU14C
2014-04-01Separate payment rules applySeparate payment rules applyRVU14B
2014-01-01Separate payment rules applySeparate payment rules applyRVU14A
2013-10-01Separate payment rules applySeparate payment rules applyRVU13D
2013-07-01Separate payment rules applySeparate payment rules applyRVU13C
2013-04-01Separate payment rules applySeparate payment rules applyRVU13B
2013-01-01Separate payment rules applySeparate payment rules applyRVU13AR

Price Q4122 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Aberdeen
  • Ackerman
  • Agricola
  • Alcorn State University
  • Algoma
  • Alligator
  • Amory

Browse all communities in Mississippi

Q4122 billing questions

Can Q4122 be billed by itself?

No. CMS identifies it as an add-on code that must be billed with a primary procedure.

Does Q4122 include applying the matrix?

No. Q4122 identifies the DermACELL AWM product. Report the applicable primary procedure for the wound service.

How are units determined?

The descriptor is based on square centimeters. Document the area of DermACELL AWM used and report the corresponding units.

What documentation supports Q4122?

Document the DermACELL AWM product, wound site, and amount used, along with the primary procedure it accompanies.

How does CMS classify the code’s components?

CMS classifies Q4122 as technical-component-only and states 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
RVUs for Q4122PPRRVU2026_Oct_nonQPP.csv, line 18,218 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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