HCPCS Q4393: Wound graftMedicare rate & RVUs

Reports Surgraft AC graft material by square centimeter when supplied for wound coverage alongside a primary wound procedure.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $127.26 for Q4393 nationally in the office. Local office rates run $109.31–$183.51.

Medicare rate · Q4393

Wound graft

Swap in your local Medicare rate.

Work RVUs
0
Total RVUs
3.81
Global days
ZZZ

National rate · 2026

$127.26

Office setting, before claim adjustments.

See every locality for Q4393 → · Billed by an NP, PA or therapist? →

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 10 sections
  1. Medicare rate
  2. What Q4393 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What Q4393 covers

Q4393 identifies the Surgraft AC graft product used to cover a wound. It represents the product, not the clinician’s wound preparation or application work. Wound-care clinicians and surgeons may use graft products in outpatient wound clinics, hospital outpatient departments, or other settings where a wound procedure is performed. The record should identify Surgraft AC and document the amount used and the wound treated.

Report Q4393 only with a primary procedure; CMS treats it as an add-on paid within that procedure’s global period. The unit basis is the product amount in square centimeters. Pair it with the applicable wound graft application procedure, such as 15271 for qualifying sites on the trunk, arms, or legs, or 15275 for qualifying sites on the head, face, ears, eyelids, nose, lips, or neck. CMS classifies Q4393 as technical-component-only, with a separate code covering 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 Q4393 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$109.31 to $183.51

$109.31$146.41$183.51
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

Q4393 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$111.35Unavailable
Alaska*$135.53Unavailable
Arizona$123.31Unavailable
Arkansas$109.31Unavailable
Atlanta$129.29Unavailable
Austin$134.64Unavailable
Bakersfield$139.47Unavailable
Baltimore/Surr. Cntys$136.55Unavailable
Beaumont$115.80Unavailable
Brazoria$126.11Unavailable

Q4393 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
Q4393 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

How the Q4393 rate is calculated

Each of Q4393’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 · Q4393

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 0.00Practice expense 3.81Malpractice 0.00

3.8100 adjusted RVUs×$33.4009 conversion factor=$127.26

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for Q4393

The CMS indicators that decide how Q4393 is paid alongside other services.

CMS payment indicators · Q4393

Wound graft

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.

Q4393 compared with similar codes

Compare codes

Q4393 vs Q4394 vs Q4375 vs 15271 vs 15275: national Medicare rates

Swap in your local Medicare rate.

  • Q4393
    Wound graft · 0 wRVU
    $127.26
  • Q4394
    Wound graft · 0 wRVU
    $127.26+$0.00
  • Q4375
    Wound graft · 0 wRVU
    $127.26+$0.00
  • 15271
    Skin substitute graft · 1.46 wRVU
    $157.99+$30.73
  • 15275
    Skin substitute · 1.78 wRVU
    $160.32+$33.06

How to choose

Q4394Wound graft
Both identify Surgraft products billed by square centimeter, but Q4394 is Surgraft ACA; report the code matching the product supplied.
Q4375Wound graft
Q4375 identifies Duograft AC, not Surgraft AC. The product name determines which supply code to report.
15271Skin substitute graft
15271 reports the application procedure for qualifying wounds on the trunk, arms, or legs; Q4393 identifies the Surgraft AC product used with a primary procedure.
15275Skin substitute
15275 reports the application procedure for qualifying wounds on specified head and neck sites; Q4393 identifies the graft product rather than the application.

Q4393 billing questions

Can Q4393 be reported by itself?

No. CMS identifies Q4393 as an add-on that must be billed with a primary procedure and is paid within that procedure’s global period.

Which application code may be reported with Q4393?

Use the application code that fits the treated site and wound area. Codes 15271 and 15275 cover different anatomic site groups.

How is the quantity determined?

The code is measured per square centimeter. Document the Surgraft AC product amount used for the wound.

Does Q4393 represent the application work?

No. Q4393 identifies the graft product. Report the applicable primary wound procedure for the clinician’s application service.

What does the technical-component designation mean?

CMS classifies Q4393 as technical-component-only and indicates that a separate code covers interpretation.

How does Q4393 differ from Q4394?

Q4393 identifies Surgraft AC, while Q4394 identifies Surgraft ACA. Select the code matching the product used.

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 Q4393PPRRVU2026_Oct_nonQPP.csv, line 18,478 (RVU26D)

Open CMS sourceHow we calculate rates

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