CPT code 88172: FNA adequacy, first site2026 Medicare rate & RVUs in Redding, CA

Reports immediate cytopathology review of fine needle aspirate material at the first site to assess specimen adequacy during an aspiration procedure.

CMS RVU26DEffective Oct 1, 2026One payment locality117.4K Medicare services in 2024

In Redding, CA, Medicare pays $57.16 for 88172 in the office.

$57.16Office (non-facility)
Not available in this settingHospital or facility
+5.6%vs the national office rate ($54.11)

Check a contract rate as a % of Medicare · 88172 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 88172 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Redding, CA
  2. What 88172 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 88172 covers

This service is an immediate review of material collected by fine needle aspiration to determine whether the specimen is adequate for diagnostic work. It is commonly performed during aspiration of a thyroid nodule, lymph node, or other mass, with a cytopathologist or pathology team reviewing the material while the procedure is in progress. The adequacy assessment can help the proceduralist decide whether further passes or specimen triage are needed.

Report 88172 for the first site evaluated; additional sites are represented by 88177 rather than by counting repeat passes from the same site as new sites. Documentation should identify the aspirated site and record the on-site adequacy assessment. This service is distinct from the final diagnostic interpretation and report represented by 88173 when that work is also performed. CMS recognizes professional and technical components: modifier 26 reports interpretation, modifier TC reports equipment and staff, and billing without either modifier represents the global service.

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 Redding, CA compares for 88172

Across 109 of 109 payment localities, the office rate for 88172 runs from $49.41 in Arkansas to $69.99 in San Benito County, CA. Redding, CA pays $57.16. The RVUs are the same everywhere; the geographic indexes change the dollars.

88172 in Redding, CA vs other payment areas
  1. Redding, CA · this page$57.16
  2. Bakersfield, CA · California$57.26+$0.10
  3. Chico, CA · California$57.16
  4. El Centro, CA · California$57.17+$0.01
  5. Fresno, CA · California$57.16
  6. Hanford, CA · California$57.16
  7. Los Angeles, CA · California$60.49+$3.33

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

Every other payment area

88172 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$57.16—
Merced, CACalifornia$57.16—
Modesto, CACalifornia$57.16—
Napa, CACalifornia$65.07—
Oxnard, CACalifornia$60.14—
Rest of CaliforniaCalifornia$57.16—
Riverside, CACalifornia$57.40—
Sacramento, CACalifornia$59.67—

88172 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.

$49.41

$67.02

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

View every state and territory as a table
88172 office rate range by state
State / territoryOffice rate rangeLocalities
AK$67.021
AL$49.941
AR$49.411
AZ$53.051
CA$57.16–$69.9929
CO$56.221
CT$57.091
DC$60.921
DE$53.781
FL$53.08–$56.403
GA$50.88–$54.812
GU$58.081
HI$58.081
IA$51.071
ID$51.271
IL$51.78–$55.624
IN$51.501
KS$50.801
KY$50.601
LA$50.51–$52.372
MA$55.98–$60.982
MD$54.65–$60.923
ME$51.37–$53.582
MI$51.49–$53.482
MN$54.541
MO$49.81–$52.623
MS$49.621
MT$54.111
NC$51.791
ND$53.711
NE$51.301
NH$55.301
NJ$57.93–$60.532
NM$51.671
NV$54.031
NY$52.36–$61.995
OH$51.411
OK$50.641
OR$53.79–$57.742
PA$51.53–$55.912
PR$54.441
RI$55.491
SC$51.651
SD$53.671
TN$50.971
TX$51.27–$55.888
UT$52.181
VA$53.38–$60.922
VI$54.441
VT$53.471
WA$55.89–$62.162
WI$52.341
WV$50.331
WY$53.941

See 88172 in every payment locality

How the 88172 rate is calculated

Each of 88172’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 · 88172

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.67

0.67 RVUs× 1.000 GPCI

Practice expense0.93

0.93 RVUs× 1.000 GPCI

Malpractice0.02

0.02 RVUs× 1.000 GPCI

Adjusted RVUs

1.6200

Conversion factor

$33.4009

Medicare rate

$54.11

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

The exact Redding, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

11,148

Code
88172
Physician work
0.67
Practice expense
0.93
Malpractice
0.02

GPCI2026.csv

19

Locality
Redding, CA
Physician work
1.017
Practice expense
1.096
Malpractice
0.536
Office calculation for 88172 in Redding, CA
ComponentRVULocality factorAdjusted
Physician work0.67× 1.0170.6814
Practice expense0.93× 1.0961.0193
Malpractice0.02× 0.5360.0107
Total RVUs1.7114
Conversion factor× 33.4009

Office rate, Redding, CA$57.16

Office: (0.67 × 1.017 + 0.93 × 1.096 + 0.02 × 0.536) × $33.4009 = $57.16

Open 88172 in the RVU calculator

Payment rules and modifiers for 88172

The CMS indicators that decide how 88172 is paid alongside other services.

CMS payment indicators · 88172

FNA adequacy, first site

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
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/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

88172 without 26 · national office

$54.11

FNA adequacy, first site

88172-26 · Professional component

$33.07

Pays only the interpretation and report.

When to use modifier 26

How 88172 has changed in Redding, CA

88172 · Office / nonfacility

$57.16

Effective 2026-10-01

The base rate is $0.48 lower than on 2025-10-01, moving from $57.64 to $57.16 (0.8%).

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

    $57.64changed to$57.16

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.69 changed to 0.67
    • Practice expense RVU 0.98 changed to 0.93
    • Work GPCI 1.014 changed to 1.017
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.560 changed to 0.536

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $58.59changed to$57.64

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.96 changed to 0.98

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $57.63changed to$58.59

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $58.64changed to$57.63

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.94 changed to 0.96
    • Work GPCI 1.021 changed to 1.014
    • Practice expense GPCI 1.079 changed to 1.093
    • Malpractice GPCI 0.579 changed to 0.560
  5. January 1, 2023

    RVU23A

    $57.37changed to$58.64

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.88 changed to 0.94
    • Work GPCI 1.027 changed to 1.021
    • Practice expense GPCI 1.065 changed to 1.079
    • Malpractice GPCI 0.597 changed to 0.579

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $58.22changed to$57.37

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 0.89 changed to 0.88

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $59.51changed to$58.22

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.87 changed to 0.89
    • Work GPCI 1.024 changed to 1.027
    • Practice expense GPCI 1.070 changed to 1.065
    • Malpractice GPCI 0.580 changed to 0.597

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $60.03changed to$59.51

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 0.88 changed to 0.87
    • Malpractice RVU 0.03 changed to 0.02
    • Work GPCI 1.020 changed to 1.024
    • Practice expense GPCI 1.074 changed to 1.070
    • Malpractice GPCI 0.562 changed to 0.580

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $61.51changed to$60.03

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.92 changed to 0.88

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $60.87changed to$61.51

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 0.90 changed to 0.92
    • Work GPCI 1.024 changed to 1.020
    • Practice expense GPCI 1.079 changed to 1.074
    • Malpractice GPCI 0.610 changed to 0.562

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$60.87

    Held through RVU17B, RVU17C, RVU17D.

  12. 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.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$57.16Not available in this settingRVU26D
2026-07-01$57.16Not available in this settingRVU26C
2026-04-01$57.16Not available in this settingRVU26B
2026-01-01$57.16Not available in this settingRVU26A
2025-10-01$57.64Not available in this settingRVU25D
2025-07-01$57.64Not available in this settingRVU25C
2025-04-01$57.64Not available in this settingRVU25B
2025-01-01$57.64Not available in this settingRVU25A
2024-10-01$58.59Not available in this settingRVU24D
2024-07-01$58.59Not available in this settingRVU24C
2024-04-01$58.59Not available in this settingRVU24B
2024-03-09$58.59Not available in this settingRVU24AR
2024-01-01$57.63Not available in this settingRVU24A
2023-10-01$58.64Not available in this settingRVU23D
2023-07-01$58.64Not available in this settingRVU23C
2023-04-01$58.64Not available in this settingRVU23B
2023-01-01$58.64Not available in this settingRVU23A
2022-10-01$57.37Not available in this settingRVU22D
2022-07-01$57.37Not available in this settingRVU22C
2022-04-01$57.37Not available in this settingRVU22B
2022-01-01$57.37Not available in this settingRVU22A
2021-10-01$58.22Not available in this settingRVU21D
2021-07-01$58.22Not available in this settingRVU21C
2021-04-01$58.22Not available in this settingRVU21B
2021-01-01$58.22Not available in this settingRVU21A
2020-10-01$59.51Not available in this settingRVU20D
2020-07-01$59.51Not available in this settingRVU20C
2020-04-01$59.51Not available in this settingRVU20B
2020-01-01$59.51Not available in this settingRVU20A
2019-10-01$60.03Not available in this settingRVU19D
2019-07-01$60.03Not available in this settingRVU19C
2019-04-01$60.03Not available in this settingRVU19B
2019-01-01$60.03Not available in this settingRVU19A
2018-10-01$61.51Not available in this settingRVU18D
2018-07-01$61.51Not available in this settingRVU18C
2018-04-01$61.51Not available in this settingRVU18B
2018-01-01$61.51Not available in this settingRVU18AR1
2017-10-01$60.87Not available in this settingRVU17D
2017-07-01$60.87Not available in this settingRVU17C
2017-04-01$60.87Not available in this settingRVU17B
2017-01-01$60.87Not available in this settingRVU17A
2016-10-01Rate data unavailableNot available in this settingRVU16D
2016-07-01Rate data unavailableNot available in this settingRVU16C
2016-04-01Rate data unavailableNot available in this settingRVU16B
2016-01-01Rate data unavailableNot available in this settingRVU16A
2015-10-01Rate data unavailableNot available in this settingRVU15D
2015-07-01Rate data unavailableNot available in this settingRVU15C
2015-04-01Rate data unavailableNot available in this settingRVU15B
2015-01-01Rate data unavailableNot available in this settingRVU15A
2014-10-01Rate data unavailableNot available in this settingRVU14D
2014-07-01Rate data unavailableNot available in this settingRVU14C
2014-04-01Rate data unavailableNot available in this settingRVU14B
2014-01-01Rate data unavailableNot available in this settingRVU14A
2013-10-01Rate data unavailableNot available in this settingRVU13D
2013-07-01Rate data unavailableNot available in this settingRVU13C
2013-04-01Rate data unavailableNot available in this settingRVU13B
2013-01-01Rate data unavailableNot available in this settingRVU13AR

Price 88172 for an earlier date of service

Where the Redding, CA rate applies

Redding, CA is a Medicare payment area, not a city. Our Census mapping connects it to 32 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Redding
  • Anderson
  • Bella Vista
  • Big Bend
  • Burney
  • Cassel
  • Castella
  • Centerville

Browse all communities in California

88172 billing questions

How is 88172 different from 88173?

88172 represents immediate review to assess specimen adequacy during the aspiration procedure. 88173 represents the diagnostic interpretation and report.

When is 88177 reported with 88172?

88172 covers the first site evaluated, and 88177 is the add-on for each additional site. Additional passes from the same site do not make it an additional site.

Can 88172 be reported with the FNA procedure?

Yes, when immediate cytopathology adequacy evaluation is performed in addition to the aspiration procedure. The aspiration code describes collecting the specimen; 88172 describes its on-site adequacy review.

Which modifiers identify the components?

Use modifier 26 for the professional interpretation or modifier TC for the technical work, including equipment and staff. Without either modifier, 88172 represents the global service.

What documentation supports 88172?

Document the site evaluated and the immediate adequacy assessment. The record should support that cytopathology review occurred during the aspiration, rather than only a later diagnostic 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 88172PPRRVU2026_Oct_nonQPP.csv, line 11,148 (RVU26D)
Geographic factors for Redding, CAGPCI2026.csv, line 19 (RVU26D)

Open CMS sourceHow we calculate rates

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