CPT code 94375: Flow-volume loop, respiratory tracing2026 Medicare rate & RVUs in New Mexico

Reports a respiratory test that plots airflow against lung volume during breathing maneuvers, helping assess airflow patterns in pulmonary evaluation.

CMS RVU26DEffective Oct 1, 2026One payment locality193.2K Medicare services in 2024

In New Mexico, Medicare pays $39.61 for 94375 in the office.

$39.61Office (non-facility)
Not available in this settingHospital or facility
−5.9%vs the national office rate ($42.09)

Check a contract rate as a % of Medicare · 94375 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 94375 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What 94375 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 94375 covers

During this pulmonary function test, the patient performs breathing maneuvers while equipment records airflow in relation to lung volume, producing a flow-volume tracing. Pulmonary function laboratories, hospital departments, and office-based respiratory practices commonly perform the test, with a respiratory therapist or other trained staff member coaching the maneuvers. Clinicians use the tracing to assess airflow patterns, including patterns that may suggest obstruction in the upper airway.

Report 94375 when the flow-volume loop test is performed and documented, rather than selecting it solely because a loop image appears in a broader pulmonary function report. The record should support the maneuver performed and the resulting tracing; the interpreting clinician’s findings support the professional service. CMS recognizes professional and technical components: modifier 26 identifies interpretation, modifier TC identifies equipment and staff, and reporting 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 New Mexico compares for 94375

Across 109 of 109 payment localities, the office rate for 94375 runs from $37.33 in Arkansas to $56.75 in San Benito County, CA. New Mexico pays $39.61. The RVUs are the same everywhere; the geographic indexes change the dollars.

94375 in New Mexico vs other payment areas
  1. New Mexico · this page$39.61
  2. Los Angeles, CA · California$48.02+$8.41
  3. Washington, DC area · District of Columbia$48.29+$8.68
  4. Miami, FL · Florida$44.39+$4.78
  5. Chicago, IL · Illinois$43.18+$3.57
  6. Manhattan, NY · New York$48.20+$8.59
  7. Alaska · Alaska$48.84+$9.23

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

Every other payment area

94375 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$37.87—
ArkansasArkansas$37.33—
ArizonaArizona$41.02—
Bakersfield, CACalifornia$45.03—
Chico, CACalifornia$44.96—
El Centro, CACalifornia$44.96—
Fresno, CACalifornia$44.96—
Hanford, CACalifornia$44.96—

94375 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.

$37.33

$50.86

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

View every state and territory as a table
94375 office rate range by state
State / territoryOffice rate rangeLocalities
AK$48.841
AL$37.871
AR$37.331
AZ$41.021
CA$44.96–$56.7529
CO$44.071
CT$44.841
DC$48.291
DE$41.691
FL$41.04–$44.393
GA$38.82–$42.752
GU$46.111
HI$46.111
IA$39.011
ID$39.221
IL$39.73–$43.524
IN$39.451
KS$38.741
KY$38.541
LA$38.45–$40.322
MA$43.77–$48.512
MD$42.51–$48.293
ME$39.32–$41.562
MI$39.44–$41.442
MN$42.531
MO$37.74–$40.583
MS$37.551
MT$42.081
NC$39.741
ND$41.691
NE$39.251
NH$43.291
NJ$45.44–$47.792
NM$39.611
NV$42.001
NY$40.32–$49.235
OH$39.361
OK$38.581
OR$41.76–$45.562
PA$39.47–$43.682
PR$42.421
RI$43.241
SC$39.601
SD$41.641
TN$38.921
TX$39.21–$43.858
UT$40.131
VA$41.35–$48.292
VI$42.421
VT$41.441
WA$43.72–$49.592
WI$40.301
WV$38.261
WY$41.911

See 94375 in every payment locality

How the 94375 rate is calculated

Each of 94375’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 · 94375

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.30

0.30 RVUs× 1.000 GPCI

Practice expense0.94

0.94 RVUs× 1.000 GPCI

Malpractice0.02

0.02 RVUs× 1.000 GPCI

Adjusted RVUs

1.2600

Conversion factor

$33.4009

Medicare rate

$42.09

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

The exact New Mexico inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,385

Code
94375
Physician work
0.30
Practice expense
0.94
Malpractice
0.02

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Office calculation for 94375 in New Mexico
ComponentRVULocality factorAdjusted
Physician work0.30× 1.0000.3000
Practice expense0.94× 0.9170.8620
Malpractice0.02× 1.2010.0240
Total RVUs1.1860
Conversion factor× 33.4009

Office rate, New Mexico$39.61

Office: (0.3 × 1 + 0.94 × 0.917 + 0.02 × 1.201) × $33.4009 = $39.61

Open 94375 in the RVU calculator

Payment rules and modifiers for 94375

The CMS indicators that decide how 94375 is paid alongside other services.

CMS payment indicators · 94375

Flow-volume loop, respiratory tracing

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

94375 without 26 · national office

$42.09

Flow-volume loop, respiratory tracing

94375-26 · Professional component

$14.36

Pays only the interpretation and report.

When to use modifier 26

How 94375 has changed in New Mexico

94375 · Office / nonfacility

$39.61

Effective 2026-10-01

The base rate is $4.15 higher than on 2025-10-01, moving from $35.46 to $39.61 (11.7%).

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

    $35.46changed to$39.61

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.31 changed to 0.30
    • Practice expense RVU 0.84 changed to 0.94
    • Practice expense GPCI 0.908 changed to 0.917
    • Malpractice GPCI 1.172 changed to 1.201

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $36.49changed to$35.46

    • Conversion factor 33.2875 changed to 32.3465

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $35.89changed to$36.49

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $36.06changed to$35.89

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.81 changed to 0.84
    • Practice expense GPCI 0.902 changed to 0.908
    • Malpractice GPCI 1.169 changed to 1.172
  5. January 1, 2023

    RVU23A

    $36.34changed to$36.06

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.80 changed to 0.81
    • Practice expense GPCI 0.896 changed to 0.902
    • Malpractice GPCI 1.166 changed to 1.169

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $36.64changed to$36.34

    • Conversion factor 34.8931 changed to 34.6062

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $37.29changed to$36.64

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.77 changed to 0.80
    • Practice expense GPCI 0.908 changed to 0.896
    • Malpractice GPCI 1.207 changed to 1.166

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $38.29changed to$37.29

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 0.79 changed to 0.77
    • Practice expense GPCI 0.921 changed to 0.908
    • Malpractice GPCI 1.247 changed to 1.207

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $38.58changed to$38.29

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.80 changed to 0.79

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $38.07changed to$38.58

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 0.79 changed to 0.80
    • Practice expense GPCI 0.920 changed to 0.921
    • Malpractice GPCI 1.204 changed to 1.247

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $37.60changed to$38.07

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 0.78 changed to 0.79
    • Practice expense GPCI 0.919 changed to 0.920
    • Malpractice GPCI 1.161 changed to 1.204

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $37.73changed to$37.60

    • Conversion factor 35.9335 changed to 35.8043

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $37.54changed to$37.73

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $37.20changed to$37.54

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 0.77 changed to 0.78
    • Practice expense GPCI 0.918 changed to 0.919
    • Malpractice GPCI 1.079 changed to 1.161

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $38.03changed to$37.20

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 0.86 changed to 0.77
    • Practice expense GPCI 0.916 changed to 0.918
    • Malpractice GPCI 0.997 changed to 1.079

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $38.03

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$39.61Not available in this settingRVU26D
2026-07-01$39.61Not available in this settingRVU26C
2026-04-01$39.61Not available in this settingRVU26B
2026-01-01$39.61Not available in this settingRVU26A
2025-10-01$35.46Not available in this settingRVU25D
2025-07-01$35.46Not available in this settingRVU25C
2025-04-01$35.46Not available in this settingRVU25B
2025-01-01$35.46Not available in this settingRVU25A
2024-10-01$36.49Not available in this settingRVU24D
2024-07-01$36.49Not available in this settingRVU24C
2024-04-01$36.49Not available in this settingRVU24B
2024-03-09$36.49Not available in this settingRVU24AR
2024-01-01$35.89Not available in this settingRVU24A
2023-10-01$36.06Not available in this settingRVU23D
2023-07-01$36.06Not available in this settingRVU23C
2023-04-01$36.06Not available in this settingRVU23B
2023-01-01$36.06Not available in this settingRVU23A
2022-10-01$36.34Not available in this settingRVU22D
2022-07-01$36.34Not available in this settingRVU22C
2022-04-01$36.34Not available in this settingRVU22B
2022-01-01$36.34Not available in this settingRVU22A
2021-10-01$36.64Not available in this settingRVU21D
2021-07-01$36.64Not available in this settingRVU21C
2021-04-01$36.64Not available in this settingRVU21B
2021-01-01$36.64Not available in this settingRVU21A
2020-10-01$37.29Not available in this settingRVU20D
2020-07-01$37.29Not available in this settingRVU20C
2020-04-01$37.29Not available in this settingRVU20B
2020-01-01$37.29Not available in this settingRVU20A
2019-10-01$38.29Not available in this settingRVU19D
2019-07-01$38.29Not available in this settingRVU19C
2019-04-01$38.29Not available in this settingRVU19B
2019-01-01$38.29Not available in this settingRVU19A
2018-10-01$38.58Not available in this settingRVU18D
2018-07-01$38.58Not available in this settingRVU18C
2018-04-01$38.58Not available in this settingRVU18B
2018-01-01$38.58Not available in this settingRVU18AR1
2017-10-01$38.07Not available in this settingRVU17D
2017-07-01$38.07Not available in this settingRVU17C
2017-04-01$38.07Not available in this settingRVU17B
2017-01-01$38.07Not available in this settingRVU17A
2016-10-01$37.60Not available in this settingRVU16D
2016-07-01$37.60Not available in this settingRVU16C
2016-04-01$37.60Not available in this settingRVU16B
2016-01-01$37.60Not available in this settingRVU16A
2015-10-01$37.73Not available in this settingRVU15D
2015-07-01$37.73Not available in this settingRVU15C
2015-04-01$37.54Not available in this settingRVU15B
2015-01-01$37.54Not available in this settingRVU15A
2014-10-01$37.20Not available in this settingRVU14D
2014-07-01$37.20Not available in this settingRVU14C
2014-04-01$37.20Not available in this settingRVU14B
2014-01-01$37.20Not available in this settingRVU14A
2013-10-01$38.03Not available in this settingRVU13D
2013-07-01$38.03Not available in this settingRVU13C
2013-04-01$38.03Not available in this settingRVU13B
2013-01-01$38.03Not available in this settingRVU13AR

Price 94375 for an earlier date of service

Where the New Mexico rate applies

New Mexico is a Medicare payment area, not a city. Our Census mapping connects it to 528 cities and communities in New Mexico. Some span more than one payment area; confirm with the service ZIP.

  • Abeytas
  • Abiquiu
  • Acomita Lake
  • Adelino
  • Agua Fria
  • Alamillo
  • Alamo
  • Alamogordo

Browse all communities in New Mexico

94375 billing questions

How does 94375 differ from 94010?

94375 represents a flow-volume loop tracing. 94010 represents spirometric testing; choose based on the service performed and documented, not simply the format of a report.

Can 94375 and 94010 be reported together?

A loop image alone does not establish that a separate spirometry service was performed. Documentation should identify each service being reported.

When should modifier 26 or TC be used?

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

What documentation supports 94375?

Document the breathing maneuvers, the resulting flow-volume tracing, and the interpreting clinician’s findings when the professional component is reported.

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 94375PPRRVU2026_Oct_nonQPP.csv, line 12,385 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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