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CMS RVU26D · Effective 2026-10-01

94452 in Delaware

Office / nonfacility

$56.87

Base rate per service

Facility setting

Not available in this setting

Base rate per service

Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.

Pulmonary diagnostic testing

About 94452: High-altitude simulation test with interpretation

Reports simulated-altitude breathing assessment with interpretation and a written report, typically used to evaluate oxygenation before air travel in a patient with lung disease.

A high-altitude simulation test assesses whether a patient maintains adequate oxygenation while breathing a reduced-oxygen mixture that approximates an aircraft cabin environment. A pulmonary laboratory or respiratory therapist typically administers the test and monitors oxygen saturation. A physician or other qualified health care professional interprets the findings and prepares the report. The test may be requested before air travel for a patient with chronic lung disease whose oxygen needs at cabin altitude are uncertain.

Report 94452 for the simulated-altitude assessment with interpretation and report. The record should identify the simulated exposure, the patient's oxygenation during testing, and the interpreting clinician's findings. If supplemental oxygen is titrated during the assessment, consider the distinct service described by 94453. Medicare recognizes a professional component for the interpretation, reported with modifier 26, and a technical component for the equipment and staff, reported with modifier TC. Billing 94452 without either modifier represents the complete service.

CMS billing rules for 94452

Professional and technical components
Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.

Where the value comes from

  • Work RVU0.30 · 17%
  • Practice expense (office) RVU1.40 · 81%
  • Malpractice RVU0.02 · 1%

777

Medicare services in 2024 · #3184 by national volume

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.

94452 compared with similar codes

Office rates for Delaware, from the same CMS release.

94453

Altitude simulation

Supplemental oxygen titration

$75.01

94452 covers simulated-altitude assessment with interpretation and report; 94453 identifies the service involving supplemental oxygen titration during that assessment.

94450

Hypoxia response test

Ventilatory response

$112.30

Choose 94450 for testing the patient's breathing response to hypoxia. Choose 94452 for assessing oxygenation under simulated high-altitude conditions with interpretation and report.

The same code, a different location

How does Delaware compare?

94452 across payment areas

Same release and payment basis · bars start at $0

  1. Delaware · This locality

    $56.87

  2. Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty)

    $66.19

    $9.32 higher than Delaware

  3. Dc + Md/Va Suburbs

    $66.39

    $9.52 higher than Delaware

  4. Miami

    $60.39

    $3.52 higher than Delaware

  5. Chicago

    $58.62

    $1.75 higher than Delaware

  6. Manhattan

    $66.06

    $9.19 higher than Delaware

  7. Alaska*

    $65.20

    $8.33 higher than Delaware

Other payment areas listed in Delaware appear first, followed by selected cross-country examples. The chart compares amounts, not distance.

Across 109 of 109 CMS payment localities with a supported office rate, 94452 ranges from $50.53 in Arkansas to $78.91 in San Jose-Sunnyvale-Santa Clara (San Benito Cnty). This is a geographic range, not an average.

The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.

Compare all 108 other payment areas

  • Alabama

    Alabama · 94452

    Office

    $51.31

    Facility

    Unavailable

    $5.56 lower than Delaware for the office setting.

  • Arkansas

    Arkansas · 94452

    Office

    $50.53

    Facility

    Unavailable

    $6.34 lower than Delaware for the office setting.

  • Arizona

    Arizona · 94452

    Office

    $55.90

    Facility

    Unavailable

    $0.97 lower than Delaware for the office setting.

  • Bakersfield

    California · 94452

    Office

    $61.87

    Facility

    Unavailable

    $5.00 higher than Delaware for the office setting.

  • Chico

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • El Centro

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Fresno

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Hanford-Corcoran

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Madera

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Merced

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Modesto

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Napa

    California · 94452

    Office

    $72.62

    Facility

    Unavailable

    $15.75 higher than Delaware for the office setting.

  • Oxnard-Thousand Oaks-Ventura

    California · 94452

    Office

    $65.99

    Facility

    Unavailable

    $9.12 higher than Delaware for the office setting.

  • Redding

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Rest Of California

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Riverside-San Bernardino-Ontario

    California · 94452

    Office

    $62.02

    Facility

    Unavailable

    $5.15 higher than Delaware for the office setting.

  • Sacramento-Roseville-Folsom

    California · 94452

    Office

    $65.12

    Facility

    Unavailable

    $8.25 higher than Delaware for the office setting.

  • Salinas

    California · 94452

    Office

    $64.89

    Facility

    Unavailable

    $8.02 higher than Delaware for the office setting.

  • San Diego-Chula Vista-Carlsbad

    California · 94452

    Office

    $66.61

    Facility

    Unavailable

    $9.74 higher than Delaware for the office setting.

  • San Francisco-Oakland-Berkeley (Marin Cnty)

    California · 94452

    Office

    $77.21

    Facility

    Unavailable

    $20.34 higher than Delaware for the office setting.

  • San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)

    California · 94452

    Office

    $77.19

    Facility

    Unavailable

    $20.32 higher than Delaware for the office setting.

  • San Jose-Sunnyvale-Santa Clara (San Benito Cnty)

    California · 94452

    Office

    $78.91

    Facility

    Unavailable

    $22.04 higher than Delaware for the office setting.

  • San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)

    California · 94452

    Office

    $78.82

    Facility

    Unavailable

    $21.95 higher than Delaware for the office setting.

  • San Luis Obispo-Paso Robles

    California · 94452

    Office

    $63.81

    Facility

    Unavailable

    $6.94 higher than Delaware for the office setting.

  • Santa Cruz-Watsonville

    California · 94452

    Office

    $67.40

    Facility

    Unavailable

    $10.53 higher than Delaware for the office setting.

  • Santa Maria-Santa Barbara

    California · 94452

    Office

    $65.18

    Facility

    Unavailable

    $8.31 higher than Delaware for the office setting.

  • Santa Rosa-Petaluma

    California · 94452

    Office

    $68.10

    Facility

    Unavailable

    $11.23 higher than Delaware for the office setting.

  • Stockton

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Vallejo

    California · 94452

    Office

    $72.59

    Facility

    Unavailable

    $15.72 higher than Delaware for the office setting.

  • Visalia

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Yuba City

    California · 94452

    Office

    $61.80

    Facility

    Unavailable

    $4.93 higher than Delaware for the office setting.

  • Colorado

    Colorado · 94452

    Office

    $60.42

    Facility

    Unavailable

    $3.55 higher than Delaware for the office setting.

  • Connecticut

    Connecticut · 94452

    Office

    $61.39

    Facility

    Unavailable

    $4.52 higher than Delaware for the office setting.

  • Fort Lauderdale

    Florida · 94452

    Office

    $58.60

    Facility

    Unavailable

    $1.73 higher than Delaware for the office setting.

  • Rest Of Florida

    Florida · 94452

    Office

    $55.73

    Facility

    Unavailable

    $1.14 lower than Delaware for the office setting.

  • Atlanta

    Georgia · 94452

    Office

    $58.36

    Facility

    Unavailable

    $1.49 higher than Delaware for the office setting.

  • Rest Of Georgia

    Georgia · 94452

    Office

    $52.53

    Facility

    Unavailable

    $4.34 lower than Delaware for the office setting.

  • Hawaii, Guam

    Hawaii · 94452

    Office

    $63.57

    Facility

    Unavailable

    $6.70 higher than Delaware for the office setting.

  • Iowa

    Iowa · 94452

    Office

    $53.07

    Facility

    Unavailable

    $3.80 lower than Delaware for the office setting.

  • Idaho

    Idaho · 94452

    Office

    $53.36

    Facility

    Unavailable

    $3.51 lower than Delaware for the office setting.

  • East St. Louis

    Illinois · 94452

    Office

    $54.39

    Facility

    Unavailable

    $2.48 lower than Delaware for the office setting.

  • Rest Of Illinois

    Illinois · 94452

    Office

    $53.76

    Facility

    Unavailable

    $3.11 lower than Delaware for the office setting.

  • Suburban Chicago

    Illinois · 94452

    Office

    $59.30

    Facility

    Unavailable

    $2.43 higher than Delaware for the office setting.

  • Indiana

    Indiana · 94452

    Office

    $53.69

    Facility

    Unavailable

    $3.18 lower than Delaware for the office setting.

  • Kansas

    Kansas · 94452

    Office

    $52.63

    Facility

    Unavailable

    $4.24 lower than Delaware for the office setting.

  • Kentucky

    Kentucky · 94452

    Office

    $52.20

    Facility

    Unavailable

    $4.67 lower than Delaware for the office setting.

  • New Orleans

    Louisiana · 94452

    Office

    $54.78

    Facility

    Unavailable

    $2.09 lower than Delaware for the office setting.

  • Rest Of Louisiana

    Louisiana · 94452

    Office

    $52.04

    Facility

    Unavailable

    $4.83 lower than Delaware for the office setting.

  • Metropolitan Boston

    Massachusetts · 94452

    Office

    $66.86

    Facility

    Unavailable

    $9.99 higher than Delaware for the office setting.

  • Rest Of Massachusetts

    Massachusetts · 94452

    Office

    $59.95

    Facility

    Unavailable

    $3.08 higher than Delaware for the office setting.

  • Baltimore/Surr. Cntys

    Maryland · 94452

    Office

    $61.18

    Facility

    Unavailable

    $4.31 higher than Delaware for the office setting.

  • Rest Of Maryland

    Maryland · 94452

    Office

    $58.06

    Facility

    Unavailable

    $1.19 higher than Delaware for the office setting.

  • Rest Of Maine

    Maine · 94452

    Office

    $53.46

    Facility

    Unavailable

    $3.41 lower than Delaware for the office setting.

  • Southern Maine

    Maine · 94452

    Office

    $56.78

    Facility

    Unavailable

    $0.09 lower than Delaware for the office setting.

  • Detroit

    Michigan · 94452

    Office

    $56.27

    Facility

    Unavailable

    $0.60 lower than Delaware for the office setting.

  • Rest Of Michigan

    Michigan · 94452

    Office

    $53.47

    Facility

    Unavailable

    $3.40 lower than Delaware for the office setting.

  • Minnesota

    Minnesota · 94452

    Office

    $58.34

    Facility

    Unavailable

    $1.47 higher than Delaware for the office setting.

  • Metropolitan Kansas City

    Missouri · 94452

    Office

    $54.58

    Facility

    Unavailable

    $2.29 lower than Delaware for the office setting.

  • Metropolitan St. Louis

    Missouri · 94452

    Office

    $55.21

    Facility

    Unavailable

    $1.66 lower than Delaware for the office setting.

  • Rest Of Missouri

    Missouri · 94452

    Office

    $50.98

    Facility

    Unavailable

    $5.89 lower than Delaware for the office setting.

  • Mississippi

    Mississippi · 94452

    Office

    $50.78

    Facility

    Unavailable

    $6.09 lower than Delaware for the office setting.

  • Montana**

    Montana · 94452

    Office

    $57.45

    Facility

    Unavailable

    $0.58 higher than Delaware for the office setting.

  • North Carolina

    North Carolina · 94452

    Office

    $54.08

    Facility

    Unavailable

    $2.79 lower than Delaware for the office setting.

  • North Dakota**

    North Dakota · 94452

    Office

    $57.05

    Facility

    Unavailable

    $0.18 higher than Delaware for the office setting.

  • Nebraska

    Nebraska · 94452

    Office

    $53.43

    Facility

    Unavailable

    $3.44 lower than Delaware for the office setting.

  • New Hampshire

    New Hampshire · 94452

    Office

    $59.28

    Facility

    Unavailable

    $2.41 higher than Delaware for the office setting.

  • Northern Nj

    New Jersey · 94452

    Office

    $65.61

    Facility

    Unavailable

    $8.74 higher than Delaware for the office setting.

  • Rest Of New Jersey

    New Jersey · 94452

    Office

    $62.22

    Facility

    Unavailable

    $5.35 higher than Delaware for the office setting.

  • New Mexico

    New Mexico · 94452

    Office

    $53.70

    Facility

    Unavailable

    $3.17 lower than Delaware for the office setting.

  • Nevada**

    Nevada · 94452

    Office

    $57.38

    Facility

    Unavailable

    $0.51 higher than Delaware for the office setting.

  • Nyc Suburbs/Long Island

    New York · 94452

    Office

    $67.50

    Facility

    Unavailable

    $10.63 higher than Delaware for the office setting.

  • Poughkpsie/N Nyc Suburbs

    New York · 94452

    Office

    $62.48

    Facility

    Unavailable

    $5.61 higher than Delaware for the office setting.

  • Queens

    New York · 94452

    Office

    $66.90

    Facility

    Unavailable

    $10.03 higher than Delaware for the office setting.

  • Rest Of New York

    New York · 94452

    Office

    $54.91

    Facility

    Unavailable

    $1.96 lower than Delaware for the office setting.

  • Ohio

    Ohio · 94452

    Office

    $53.39

    Facility

    Unavailable

    $3.48 lower than Delaware for the office setting.

  • Oklahoma

    Oklahoma · 94452

    Office

    $52.30

    Facility

    Unavailable

    $4.57 lower than Delaware for the office setting.

  • Portland

    Oregon · 94452

    Office

    $62.63

    Facility

    Unavailable

    $5.76 higher than Delaware for the office setting.

  • Rest Of Oregon

    Oregon · 94452

    Office

    $57.06

    Facility

    Unavailable

    $0.19 higher than Delaware for the office setting.

  • Metropolitan Philadelphia

    Pennsylvania · 94452

    Office

    $59.68

    Facility

    Unavailable

    $2.81 higher than Delaware for the office setting.

  • Rest Of Pennsylvania

    Pennsylvania · 94452

    Office

    $53.58

    Facility

    Unavailable

    $3.29 lower than Delaware for the office setting.

  • Puerto Rico

    Puerto Rico · 94452

    Office

    $57.95

    Facility

    Unavailable

    $1.08 higher than Delaware for the office setting.

  • Rhode Island

    Rhode Island · 94452

    Office

    $59.11

    Facility

    Unavailable

    $2.24 higher than Delaware for the office setting.

  • South Carolina

    South Carolina · 94452

    Office

    $53.80

    Facility

    Unavailable

    $3.07 lower than Delaware for the office setting.

  • South Dakota**

    South Dakota · 94452

    Office

    $57.01

    Facility

    Unavailable

    $0.14 higher than Delaware for the office setting.

  • Tennessee

    Tennessee · 94452

    Office

    $52.88

    Facility

    Unavailable

    $3.99 lower than Delaware for the office setting.

  • Austin

    Texas · 94452

    Office

    $60.11

    Facility

    Unavailable

    $3.24 higher than Delaware for the office setting.

  • Beaumont

    Texas · 94452

    Office

    $53.19

    Facility

    Unavailable

    $3.68 lower than Delaware for the office setting.

  • Brazoria

    Texas · 94452

    Office

    $56.96

    Facility

    Unavailable

    $0.09 higher than Delaware for the office setting.

  • Dallas

    Texas · 94452

    Office

    $57.26

    Facility

    Unavailable

    $0.39 higher than Delaware for the office setting.

  • Fort Worth

    Texas · 94452

    Office

    $56.80

    Facility

    Unavailable

    $0.07 lower than Delaware for the office setting.

  • Galveston

    Texas · 94452

    Office

    $57.09

    Facility

    Unavailable

    $0.22 higher than Delaware for the office setting.

  • Houston

    Texas · 94452

    Office

    $57.45

    Facility

    Unavailable

    $0.58 higher than Delaware for the office setting.

  • Rest Of Texas

    Texas · 94452

    Office

    $55.00

    Facility

    Unavailable

    $1.87 lower than Delaware for the office setting.

  • Utah

    Utah · 94452

    Office

    $54.58

    Facility

    Unavailable

    $2.29 lower than Delaware for the office setting.

  • Virginia

    Virginia · 94452

    Office

    $56.46

    Facility

    Unavailable

    $0.41 lower than Delaware for the office setting.

  • Virgin Islands

    United States Virgin Islands · 94452

    Office

    $57.95

    Facility

    Unavailable

    $1.08 higher than Delaware for the office setting.

  • Vermont

    Vermont · 94452

    Office

    $56.65

    Facility

    Unavailable

    $0.22 lower than Delaware for the office setting.

  • Rest Of Washington

    Washington · 94452

    Office

    $59.90

    Facility

    Unavailable

    $3.03 higher than Delaware for the office setting.

  • Seattle (King Cnty)

    Washington · 94452

    Office

    $68.44

    Facility

    Unavailable

    $11.57 higher than Delaware for the office setting.

  • Wisconsin

    Wisconsin · 94452

    Office

    $55.02

    Facility

    Unavailable

    $1.85 lower than Delaware for the office setting.

  • West Virginia

    West Virginia · 94452

    Office

    $51.61

    Facility

    Unavailable

    $5.26 lower than Delaware for the office setting.

  • Wyoming**

    Wyoming · 94452

    Office

    $57.28

    Facility

    Unavailable

    $0.41 higher than Delaware for the office setting.

See how rates vary across the country

94452 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$50.53

$70.35

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

View all state and territory rates as a table
State / territoryRate rangeLocalities
AK$65.201
AL$51.311
AR$50.531
AZ$55.901
CA$61.80–$78.9129
CO$60.421
CT$61.391
DC$66.391
DE$56.871
FL$55.73–$60.393
GA$52.53–$58.362
GU$63.571
HI$63.571
IA$53.071
ID$53.361
IL$53.76–$59.304
IN$53.691
KS$52.631
KY$52.201
LA$52.04–$54.782
MA$59.95–$66.862
MD$58.06–$66.393
ME$53.46–$56.782
MI$53.47–$56.272
MN$58.341
MO$50.98–$55.213
MS$50.781
MT$57.451
NC$54.081
ND$57.051
NE$53.431
NH$59.281
NJ$62.22–$65.612
NM$53.701
NV$57.381
NY$54.91–$67.505
OH$53.391
OK$52.301
OR$57.06–$62.632
PA$53.58–$59.682
PR$57.951
RI$59.111
SC$53.801
SD$57.011
TN$52.881
TX$53.19–$60.118
UT$54.581
VA$56.46–$66.392
VI$57.951
VT$56.651
WA$59.90–$68.442
WI$55.021
WV$51.611
WY$57.281

Explore 94452 on the national rate map →

Where does this rate apply?

Delaware is a Medicare payment area. Our Census mapping connects it to 79 cities and communities in Delaware, including the examples shown here.

Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.

Browse all communities in Delaware →

Use this rate

What is a percentage of Medicare worth?

Turn a percentage into dollars for 94452 in Delaware. This uses the base rate on this page, so the locality and release stay consistent.

Reference amount per service

$62.56

$56.87 × 110% = $62.56

A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.

Working with a whole code list?

Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.

Compare your contract offer →

How this local rate is calculated

Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 94452 in Delaware.

PPRRVU2026_Oct_nonQPP.csv

12,391

Code
94452
Physician work
0.30
Practice expense
1.40
Malpractice
0.02

GPCI2026.csv

40

Locality
Delaware
Physician work
1.005
Practice expense
0.988
Malpractice
0.899
Office / nonfacility calculation for 94452 in Delaware
ComponentRVULocality factorAdjusted
Physician work0.30× 1.0050.3015
Practice expense1.40× 0.9881.3832
Malpractice0.02× 0.8990.0180
Total RVUs1.7027
Conversion factor× 33.4009

Office / nonfacility rate, Delaware$56.87

Open 94452 in the RVU calculator →

Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work0.31.005
Practice expense1.40.988
Malpractice0.020.899

(0.3 × 1.005 + 1.4 × 0.988 + 0.02 × 0.899) × $33.4009 = $56.87

The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.

How this rate has changed

94452 · Office / nonfacility

$56.87

Effective 2026-10-01

The base rate is $7.95 higher than on 2025-10-01, moving from $48.92 to $56.87 (16.3%).

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

    $48.92changed to$56.87

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.31 changed to 0.30
    • Practice expense RVU 1.19 changed to 1.40
    • Work GPCI 1.009 changed to 1.005
    • Practice expense GPCI 0.992 changed to 0.988
    • Malpractice GPCI 0.949 changed to 0.899

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    Earliest loaded release: $48.92

    Held through RVU25B, RVU25C, RVU25D.

Explore release dates and calculate this code in an earlier period →

Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.

Inspect every release and its CMS source
Effective fromOffice / nonfacilityFacilityCMS release
2026-10-01$56.87Not available in this settingRVU26D
2026-07-01$56.87Not available in this settingRVU26C
2026-04-01$56.87Not available in this settingRVU26B
2026-01-01$56.87Not available in this settingRVU26A
2025-10-01$48.92Not available in this settingRVU25D
2025-07-01$48.92Not available in this settingRVU25C
2025-04-01$48.92Not available in this settingRVU25B
2025-01-01$48.92Not available in this settingRVU25A

94452 billing questions

How does 94452 differ from 94450?

94452 assesses oxygenation during simulated altitude exposure. Code 94450 evaluates the breathing response to hypoxia, rather than the result of a simulated aircraft-cabin exposure.

When should 94453 be considered?

Consider 94453 when the simulated-altitude assessment includes supplemental oxygen titration. The testing record should show the oxygen adjustments and the patient's response.

Which modifier identifies interpretation only?

Use modifier 26 with 94452 when billing the professional interpretation and report without the equipment and staff portion. Modifier TC identifies the technical portion; an unmodified claim represents both.

Can the oxygen saturation readings during the test be billed as a separate spot oximetry service?

Readings taken to monitor the simulated-altitude exposure support the 94452 test. They should not be recast as an independent spot measurement solely because an oximeter was used.

What documentation supports 94452?

Document the reduced-oxygen exposure, monitored oxygenation, and the physician's or qualified health care professional's interpretation and report.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.

Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.

RVUs for 94452PPRRVU2026_Oct_nonQPP.csv, line 12,391 (RVU26D)
Geographic factors for DelawareGPCI2026.csv, line 40 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet