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CPT code 97598: Wound debridement, each additional 20 cm²2026 Medicare rate & RVUs in Chicago, IL

Reports additional selective debridement of open-wound surface area beyond the initial area covered by the primary debridement service.

CMS RVU26DEffective Oct 1, 2026One payment locality135.2K Medicare services in 2024

In Chicago, IL, Medicare pays $50.62 for 97598 in the office and $24.44 when it’s performed in a hospital or facility.

$50.62Office (non-facility)
$24.44Hospital or facility
+6.0%vs the national office rate ($47.76)

Check a contract rate as a % of Medicare · 97598 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 97598 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Chicago, IL
  2. What 97598 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 97598 covers

97598 represents additional selective removal of devitalized tissue and wound debris from open wounds, beyond the area covered by the primary service. The clinician works to remove nonviable tissue while preserving viable tissue; the service may involve sharp instruments or other selective methods. Physicians and wound-care clinicians, including physical or occupational therapists, may perform it in settings such as an outpatient wound clinic, hospital outpatient department, or office.

Report 97598 only with its primary code, 97597. Count the additional area debrided in increments of 20 cm² or less; the final increment may be a fraction of 20 cm². Documentation should identify the wound area actually treated, the selective debridement performed, and the tissue removed. CMS classifies 97598 as an add-on code and pays it within the primary procedure's global period.

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 Chicago, IL compares for 97598

Across 109 of 109 payment localities, the office rate for 97598 runs from $42.65 in Arkansas to $61.63 in San Benito County, CA. Chicago, IL pays $50.62. The RVUs are the same everywhere; the geographic indexes change the dollars.

97598 in Chicago, IL vs other payment areas
  1. Chicago, IL · this page$50.62
  2. East St. Louis, IL · Illinois$47.44−$3.18
  3. Rest of Illinois · Illinois$46.33−$4.29
  4. Suburban Chicago, IL · Illinois$50.22−$0.40
  5. Los Angeles, CA · California$53.14+$2.52
  6. Washington, DC area · District of Columbia$54.11+$3.49
  7. Miami, FL · Florida$52.03+$1.41

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

Every other payment area

97598 in every other Medicare payment locality
Payment localityOfficeFacility
Manhattan, NYNew York$54.75$24.47
AlaskaAlaska$56.96$29.21
AlabamaAlabama$43.22$20.42
ArkansasArkansas$42.65$20.27
ArizonaArizona$46.56$21.32
Bakersfield, CACalifornia$50.11$21.56
Chico, CACalifornia$49.93$21.38
El Centro, CACalifornia$49.94$21.39

97598 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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Local rates. Clear comparisons.

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

$42.65

$56.96

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

View every state and territory as a table
97598 office rate range by state
State / territoryOffice rate rangeLocalities
AK$56.961
AL$43.221
AR$42.651
AZ$46.561
CA$49.93–$61.6329
CO$49.401
CT$50.771
DC$54.111
DE$47.291
FL$47.48–$52.033
GA$44.97–$48.692
GU$50.951
HI$50.951
IA$44.061
ID$44.361
IL$46.33–$50.624
IN$44.591
KS$43.951
KY$44.331
LA$44.30–$46.302
MA$49.18–$53.922
MD$48.12–$54.113
ME$44.65–$46.762
MI$45.46–$48.112
MN$47.201
MO$43.65–$46.363
MS$43.151
MT$47.761
NC$45.071
ND$46.571
NE$44.251
NH$48.721
NJ$51.32–$53.632
NM$45.731
NV$47.461
NY$45.70–$56.085
OH$45.221
OK$44.171
OR$47.05–$50.772
PA$45.24–$49.652
PR$48.061
RI$48.831
SC$45.231
SD$46.431
TN$44.161
TX$44.98–$49.278
UT$45.801
VA$46.67–$54.112
VI$48.061
VT$46.481
WA$49.05–$54.892
WI$45.141
WV$44.781
WY$47.241

See 97598 in every payment locality

How the 97598 rate is calculated

Each of 97598’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 · 97598

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.49

0.49 RVUs× 1.000 GPCI

Practice expense0.88

0.88 RVUs× 1.000 GPCI

Malpractice0.06

0.06 RVUs× 1.000 GPCI

Adjusted RVUs

1.4300

Conversion factor

$33.4009

Medicare rate

$47.76

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Chicago, IL inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,900

Code
97598
Physician work
0.49
Practice expense
0.88
Malpractice
0.06

GPCI2026.csv

48

Locality
Chicago, IL
Physician work
1.007
Practice expense
1.005
Malpractice
2.295
Office calculation for 97598 in Chicago, IL
ComponentRVULocality factorAdjusted
Physician work0.49× 1.0070.4934
Practice expense0.88× 1.0050.8844
Malpractice0.06× 2.2950.1377
Total RVUs1.5155
Conversion factor× 33.4009

Office rate, Chicago, IL$50.62

Office: (0.49 × 1.007 + 0.88 × 1.005 + 0.06 × 2.295) × $33.4009 = $50.62

Facility: (0.49 × 1.007 + 0.1 × 1.005 + 0.06 × 2.295) × $33.4009 = $24.44

Open 97598 in the RVU calculator

Payment rules and modifiers for 97598

The CMS indicators that decide how 97598 is paid alongside other services.

CMS payment indicators · 97598

Wound debridement, each additional 20 cm²

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/technical0Physician service: no professional/technical split.

Codes related to 97598

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

Codes related to 97598
CodeHow it relatesOffice range, Chicago, IL
Add-on codes
97597Selective wound debridement, first 20 sq cm or lessThe base selective-debridement service that must accompany 97598.$104.25
Used instead
11042Wound debridement, subcutaneous tissue, first 20 sq cmConsider for excisional debridement extending into subcutaneous tissue.$138.93
97602Wound debridement, nonselective methodRepresents nonselective wound debridement rather than selective removal.No office rate

How 97598 has changed in Chicago, IL

97598 · Office / nonfacility

$50.62

Effective 2026-10-01

The base rate is $4.93 higher than on 2025-10-01, moving from $45.69 to $50.62 (10.8%).

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

    $45.69changed to$50.62

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.50 changed to 0.49
    • Practice expense RVU 0.79 changed to 0.88
    • Malpractice RVU 0.05 changed to 0.06
    • Practice expense GPCI 1.023 changed to 1.005
    • Malpractice GPCI 2.018 changed to 2.295

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $47.69changed to$45.69

    • Conversion factor 33.2875 changed to 32.3465
    • Malpractice RVU 0.06 changed to 0.05

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $46.91changed to$47.69

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $48.36changed to$46.91

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.78 changed to 0.79
    • Work GPCI 1.009 changed to 1.007
    • Practice expense GPCI 1.033 changed to 1.023
    • Malpractice GPCI 1.945 changed to 2.018

  5. January 1, 2023

    RVU23A

    $50.21changed to$48.36

    • Conversion factor 34.6062 changed to 33.8872
    • Malpractice RVU 0.07 changed to 0.06
    • Work GPCI 1.011 changed to 1.009
    • Practice expense GPCI 1.044 changed to 1.033
    • Malpractice GPCI 1.871 changed to 1.945

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $49.68changed to$50.21

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 0.79 changed to 0.78
    • Malpractice RVU 0.05 changed to 0.07

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $50.44changed to$49.68

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.75 changed to 0.79
    • Malpractice RVU 0.06 changed to 0.05
    • Work GPCI 1.009 changed to 1.011
    • Practice expense GPCI 1.039 changed to 1.044
    • Malpractice GPCI 1.898 changed to 1.871

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $29.54changed to$50.44

    • Conversion factor 36.0391 changed to 36.0896
    • Work RVU 0.24 changed to 0.50
    • Practice expense RVU 0.54 changed to 0.75
    • Malpractice RVU 0.01 changed to 0.06
    • Work GPCI 1.008 changed to 1.009
    • Practice expense GPCI 1.034 changed to 1.039
    • Malpractice GPCI 1.925 changed to 1.898

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $29.50changed to$29.54

    • Conversion factor 35.9996 changed to 36.0391

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $26.16changed to$29.50

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 0.45 changed to 0.54
    • Work GPCI 1.012 changed to 1.008
    • Practice expense GPCI 1.036 changed to 1.034
    • Malpractice GPCI 1.972 changed to 1.925

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $25.79changed to$26.16

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 0.44 changed to 0.45
    • Work GPCI 1.016 changed to 1.012
    • Practice expense GPCI 1.037 changed to 1.036
    • Malpractice GPCI 2.019 changed to 1.972

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $27.33changed to$25.79

    • Conversion factor 35.9335 changed to 35.8043
    • Malpractice RVU 0.03 changed to 0.01

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $27.20changed to$27.33

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $27.45changed to$27.20

    • Conversion factor 35.8228 changed to 35.7547
    • Work GPCI 1.023 changed to 1.016
    • Practice expense GPCI 1.044 changed to 1.037
    • Malpractice GPCI 2.048 changed to 2.019

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $27.69changed to$27.45

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 0.48 changed to 0.44
    • Work GPCI 1.030 changed to 1.023
    • Practice expense GPCI 1.051 changed to 1.044
    • Malpractice GPCI 2.077 changed to 2.048

    Held through RVU14B, RVU14C, RVU14D.

  16. October 1, 2013

    RVU13D

    No ratechanged to$27.69

  17. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$50.62$24.44RVU26D
2026-07-01$50.62$24.44RVU26C
2026-04-01$50.62$24.44RVU26B
2026-01-01$50.62$24.44RVU26A
2025-10-01$45.69$25.18RVU25D
2025-07-01$45.69$25.18RVU25C
2025-04-01$45.69$25.18RVU25B
2025-01-01$45.69$25.18RVU25A
2024-10-01$47.69$26.58RVU24D
2024-07-01$47.69$26.58RVU24C
2024-04-01$47.69$26.58RVU24B
2024-03-09$47.69$26.58RVU24AR
2024-01-01$46.91$26.15RVU24A
2023-10-01$48.36$27.00RVU23D
2023-07-01$48.36$27.00RVU23C
2023-04-01$48.36$27.00RVU23B
2023-01-01$48.36$27.00RVU23A
2022-10-01$50.21$28.17RVU22D
2022-07-01$50.21$28.17RVU22C
2022-04-01$50.21$28.17RVU22B
2022-01-01$50.21$28.17RVU22A
2021-10-01$49.68$27.46RVU21D
2021-07-01$49.68$27.46RVU21C
2021-04-01$49.68$27.46RVU21B
2021-01-01$49.68$27.46RVU21A
2020-10-01$50.44$29.07RVU20D
2020-07-01$50.44$29.07RVU20C
2020-04-01$50.44$29.07RVU20B
2020-01-01$50.44$29.07RVU20A
2019-10-01$29.54$12.02RVU19D
2019-07-01$29.54$12.02RVU19C
2019-04-01$29.54$12.02RVU19B
2019-01-01$29.54$12.02RVU19A
2018-10-01$29.50$12.01RVU18D
2018-07-01$29.50$12.01RVU18C
2018-04-01$29.50$12.01RVU18B
2018-01-01$29.50$12.01RVU18AR1
2017-10-01$26.16$11.66RVU17D
2017-07-01$26.16$11.66RVU17C
2017-04-01$26.16$11.66RVU17B
2017-01-01$26.16$11.66RVU17A
2016-10-01$25.79$11.68RVU16D
2016-07-01$25.79$11.68RVU16C
2016-04-01$25.79$11.68RVU16B
2016-01-01$25.79$11.68RVU16A
2015-10-01$27.33$13.17RVU15D
2015-07-01$27.33$13.17RVU15C
2015-04-01$27.20$13.11RVU15B
2015-01-01$27.20$13.11RVU15A
2014-10-01$27.45$13.24RVU14D
2014-07-01$27.45$13.24RVU14C
2014-04-01$27.45$13.24RVU14B
2014-01-01$27.45$13.24RVU14A
2013-10-01$27.69$12.68RVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 97598 for an earlier date of service

Where the Chicago, IL rate applies

Chicago, IL is a Medicare payment area, not a city. Our Census mapping connects it to 137 cities and communities in Illinois. Some span more than one payment area; confirm with the service ZIP.

Browse all communities in Illinois

97598 billing questions

Can 97598 be reported by itself?

No. It is an add-on code and must be reported with the primary selective debridement service, 97597.

How many units should be reported?

Report one unit for each additional 20 cm² or portion thereof debrided after the area covered by 97597. Base units on the area actually treated, not simply the wound's overall dimensions.

What documentation supports 97598?

Document the wound or wounds treated, the area selectively debrided, and the procedure and tissue removed. The record should support the additional area beyond the primary service.

When should 11042 be considered instead?

Use 11042 when the service is excisional debridement extending into subcutaneous tissue. 97598 describes additional selective debridement and is reported with 97597.

How does the global-period rule affect payment?

CMS treats 97598 as an add-on paid within the global period of its primary procedure. It is not a standalone primary service.

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 97598PPRRVU2026_Oct_nonQPP.csv, line 12,900 (RVU26D)
Geographic factors for Chicago, ILGPCI2026.csv, line 48 (RVU26D)

Open CMS sourceHow we calculate rates

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