HCPCS code Q4389: Wound matrix, neothelium 4L+2026 Medicare rate & RVUs in Indiana

Reports Neothelium 4L+ wound matrix by square centimeter when supplied for application to a wound with a separately reported primary procedure.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Indiana, Medicare pays $117.97 for Q4389 in the office.

$117.97Office (non-facility)
Not available in this settingHospital or facility
−7.3%vs the national office rate ($127.26)

Check a contract rate as a % of Medicare · Q4389 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 Q4389 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Indiana
  2. What Q4389 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 Q4389 covers

Q4389 represents the Neothelium 4L+ wound matrix product, measured by the square centimeter. It identifies the material supplied for wound coverage; it is not the clinician’s wound-preparation or application service. Wound-care physicians, podiatrists, and surgeons may use a matrix product during treatment of wounds that require coverage, with the application performed in an office, clinic, or facility setting.

Report the product code with the applicable primary procedure, not by itself. The clinical record should support the product used and the amount represented by the billed units. CMS classifies Q4389 as an add-on code, so payment is within the primary procedure’s global period. It is also technical-component-only; any separately reportable interpretation is represented by its own code rather than Q4389. The product code and the wound application service describe distinct parts of the treatment.

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 Indiana compares for Q4389

Across 109 of 109 payment localities, the office rate for Q4389 runs from $109.31 in Arkansas to $183.51 in Santa Clara County, CA. Indiana pays $117.97. The RVUs are the same everywhere; the geographic indexes change the dollars.

Q4389 in Indiana vs other payment areas
  1. Indiana · this page$117.97
  2. Los Angeles, CA · California$150.55+$32.58
  3. Washington, DC area · District of Columbia$149.91+$31.94
  4. Miami, FL · Florida$132.47+$14.50
  5. Chicago, IL · Illinois$127.89+$9.92
  6. Manhattan, NY · New York$147.87+$29.90
  7. Alaska · Alaska$135.53+$17.56

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

Every other payment area

Q4389 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—

Q4389 rates by state

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

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
Q4389 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 Q4389 in every payment locality

How the Q4389 rate is calculated

Each of Q4389’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 · Q4389

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 Indiana inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

18,474

Code
Q4389
Physician work
0.00
Practice expense
3.81
Malpractice
0.00

GPCI2026.csv

52

Locality
Indiana
Physician work
1.000
Practice expense
0.927
Malpractice
0.486
Office calculation for Q4389 in Indiana
ComponentRVULocality factorAdjusted
Physician work0.00× 1.0000.0000
Practice expense3.81× 0.9273.5319
Malpractice0.00× 0.4860.0000
Total RVUs3.5319
Conversion factor× 33.4009

Office rate, Indiana$117.97

Office: (0 × 1 + 3.81 × 0.927 + 0 × 0.486) × $33.4009 = $117.97

Open Q4389 in the RVU calculator

Payment rules and modifiers for Q4389

The CMS indicators that decide how Q4389 is paid alongside other services.

CMS payment indicators · Q4389

Wound matrix, neothelium 4L+

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.

How Q4389 has changed in Indiana

Q4389 · Office / nonfacility

$117.97

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$117.97

    Held through RVU26B, RVU26C, RVU26D.

  2. October 1, 2025

    RVU25D

    No ratechanged toNo rate

  3. 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.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$117.97Not available in this settingRVU26D
2026-07-01$117.97Not available in this settingRVU26C
2026-04-01$117.97Not available in this settingRVU26B
2026-01-01$117.97Not available in this settingRVU26A
2025-10-01Separate payment rules applySeparate payment rules applyRVU25D
2025-07-01Not in this releaseNot in this releaseRVU25C
2025-04-01Not in this releaseNot in this releaseRVU25B
2025-01-01Not in this releaseNot in this releaseRVU25A
2024-10-01Not in this releaseNot in this releaseRVU24D
2024-07-01Not in this releaseNot in this releaseRVU24C
2024-04-01Not in this releaseNot in this releaseRVU24B
2024-03-09Not in this releaseNot in this releaseRVU24AR
2024-01-01Not in this releaseNot in this releaseRVU24A
2023-10-01Not in this releaseNot in this releaseRVU23D
2023-07-01Not in this releaseNot in this releaseRVU23C
2023-04-01Not in this releaseNot in this releaseRVU23B
2023-01-01Not in this releaseNot in this releaseRVU23A
2022-10-01Not in this releaseNot in this releaseRVU22D
2022-07-01Not in this releaseNot in this releaseRVU22C
2022-04-01Not in this releaseNot in this releaseRVU22B
2022-01-01Not in this releaseNot in this releaseRVU22A
2021-10-01Not in this releaseNot in this releaseRVU21D
2021-07-01Not in this releaseNot in this releaseRVU21C
2021-04-01Not in this releaseNot in this releaseRVU21B
2021-01-01Not in this releaseNot in this releaseRVU21A
2020-10-01Not in this releaseNot in this releaseRVU20D
2020-07-01Not in this releaseNot in this releaseRVU20C
2020-04-01Not in this releaseNot in this releaseRVU20B
2020-01-01Not in this releaseNot in this releaseRVU20A
2019-10-01Not in this releaseNot in this releaseRVU19D
2019-07-01Not in this releaseNot in this releaseRVU19C
2019-04-01Not in this releaseNot in this releaseRVU19B
2019-01-01Not in this releaseNot in this releaseRVU19A
2018-10-01Not in this releaseNot in this releaseRVU18D
2018-07-01Not in this releaseNot in this releaseRVU18C
2018-04-01Not in this releaseNot in this releaseRVU18B
2018-01-01Not in this releaseNot in this releaseRVU18AR1
2017-10-01Not in this releaseNot in this releaseRVU17D
2017-07-01Not in this releaseNot in this releaseRVU17C
2017-04-01Not in this releaseNot in this releaseRVU17B
2017-01-01Not in this releaseNot in this releaseRVU17A
2016-10-01Not in this releaseNot in this releaseRVU16D
2016-07-01Not in this releaseNot in this releaseRVU16C
2016-04-01Not in this releaseNot in this releaseRVU16B
2016-01-01Not in this releaseNot in this releaseRVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price Q4389 for an earlier date of service

Where the Indiana rate applies

Indiana is a Medicare payment area, not a city. Our Census mapping connects it to 974 cities and communities in Indiana. Some span more than one payment area; confirm with the service ZIP.

  • Aberdeen
  • Abington
  • Adams
  • Adams Lake
  • Advance
  • Akron
  • Alamo
  • Albany

Browse all communities in Indiana

Q4389 billing questions

How is Q4389 different from Q4388?

Both identify Neothelium products billed by square centimeter, but Q4389 specifies the 4L+ product, while Q4388 identifies Neothelium 4L. Select the code matching the product supplied.

Can Q4389 be billed without a wound application procedure?

No. CMS identifies Q4389 as an add-on code that must be billed with a primary procedure; it is paid within that procedure’s global period.

Is the product included in the application code?

Q4389 identifies the product, while the primary procedure represents the wound application service. Report the applicable codes together when the product is used with that procedure.

How should units be supported?

The code is measured per square centimeter. Documentation should identify Neothelium 4L+ and support the square-centimeter amount represented by the units billed.

Does Q4389 include professional interpretation?

No. CMS classifies Q4389 as technical-component-only; any separately reportable interpretation is represented by a separate code.

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 Q4389PPRRVU2026_Oct_nonQPP.csv, line 18,474 (RVU26D)
Geographic factors for IndianaGPCI2026.csv, line 52 (RVU26D)

Open CMS sourceHow we calculate rates

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