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Breathing Flow Test

Illinois rates for HCPCS 94375

This test measures the pattern and speed of airflow during a forceful breath in and out, producing a graph that shows how quickly and smoothly air moves through the lungs. It is one part of a broader evaluation of lung function, useful for detecting conditions that narrow or obstruct the airways.

Rates data updated October 2026.

How much does Breathing Flow Test cost?

$41.69

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $41.69 for this service. The price depends on where it is billed: about $40.74 from a physician practice, and about $162 from a hospital or other facility.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 7 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$40.74$33.11 to $60.26
FacilityA hospital or hospital-owned outpatient department$162$87.10 to $309

How much rates vary

Facilitymedian $162 · 10th to 90th $56 to $501Professionalmedian $41 · 10th to 90th $23 to $66
$20$50$100$200$500facility $162professional $41

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$37.15
Median
$69.18
Typical High
$69.18
Aetna
Setting
Facility
Modifier
26 · Professional part
Typical Low
$13.49
Median
$23.99
Typical High
$24.55
Aetna
Setting
Facility
Modifier
TC · Technical part
Typical Low
$23.99
Median
$44.67
Typical High
$44.67
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$36.31
Median
$39.81
Typical High
$51.29
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$13.80
Median
$14.45
Typical High
$17.78
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$22.39
Median
$25.12
Typical High
$33.88
Ambetter
Setting
Professional
Modifier
None (both parts)
Typical Low
$31.62
Median
$42.66
Typical High
$51.29
Ambetter
Setting
Professional
Modifier
26 · Professional part
Typical Low
$17.78
Median
$17.78
Typical High
$17.78
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$75.86
Median
$194.98
Typical High
$398.11
BCBS Illinois
Setting
Professional
Modifier
None (both parts)
Typical Low
$14.79
Median
$33.88
Typical High
$66.07
Cigna
Setting
Facility
Modifier
None
Typical Low
$56.23
Median
$457.09
Typical High
$660.69
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$39.81
Median
$43.65
Typical High
$66.07
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$14.79
Median
$16.98
Typical High
$22.91
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$23.99
Median
$26.30
Typical High
$43.65
Hally Health
Setting
Professional
Modifier
None
Typical Low
$37.15
Median
$51.29
Typical High
$112.20
Hally Health
Setting
Professional
Modifier
26 · Professional part
Typical Low
$14.13
Median
$19.05
Typical High
$52.48
Hally Health
Setting
Professional
Modifier
TC · Technical part
Typical Low
$21.88
Median
$30.90
Typical High
$63.10
Hally Health
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
None (both parts)
Typical Low
$46.77
Median
$46.77
Typical High
$51.29
Molina
Setting
Professional
Modifier
None (both parts)
Typical Low
$33.11
Median
$33.11
Typical High
$33.11
United
Setting
Facility
Modifier
None
Typical Low
$512.86
Median
$512.86
Typical High
$575.44
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$36.31
Median
$41.69
Typical High
$69.18
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$13.80
Median
$15.85
Typical High
$26.30
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$22.91
Median
$25.70
Typical High
$42.66
2 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$18.20
Median
$19.95
Typical High
$19.95
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$7.24
Median
$7.94
Typical High
$7.94

Where Illinois sits

The same service costs 2.7 times more in Minnesota than in Utah. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Illinois· 32nd of 51

$41.69

MN $83.18UT $30.90

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.