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CSTB Gene Test

Illinois rates for HCPCS 81189

Looks for changes in the CSTB gene in a blood or saliva sample. Changes in this gene cause a rare inherited disorder that begins in childhood or the teenage years and brings muscle jerks, seizures, and worsening balance. Testing is used to confirm a suspected diagnosis or to check relatives.

Rates data updated October 2026.

How much does CSTB Gene Test cost?

$214

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $214 for this service. The price depends on where it is billed: about $214 from a physician practice, and about $550 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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$214$138 to $234
FacilityA hospital or hospital-owned outpatient department$550$372 to $955

How much rates vary

Facilitymedian $550 · 10th to 90th $309 to $1,698Professionalmedian $214 · 10th to 90th $3 to $389
$10$100$1Kfacility $550professional $214

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
$223.87
Median
$436.52
Typical High
$831.76
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$112.20
Median
$213.80
Typical High
$416.87
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$44.67
Median
$85.11
Typical High
$165.96
Aetna
Setting
Professional
Modifier
None
Typical Low
$218.78
Median
$223.87
Typical High
$245.47
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$112.20
Median
$112.20
Typical High
$123.03
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$44.67
Median
$44.67
Typical High
$48.98
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$331.13
Median
$398.11
Typical High
$3,548.13
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$3.47
Median
$190.55
Typical High
$213.80
Cigna
Setting
Facility
Modifier
None
Typical Low
$309.03
Median
$660.69
Typical High
$1,174.90
Cigna
Setting
Professional
Modifier
None
Typical Low
$125.89
Median
$323.59
Typical High
$457.09
Hally Health
Setting
Professional
Modifier
None
Typical Low
$288.40
Median
$416.87
Typical High
$691.83
Hally Health
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
None
Typical Low
$354.81
Median
$354.81
Typical High
$354.81
United
Setting
Facility
Modifier
None
Typical Low
$275.42
Median
$331.13
Typical High
$346.74
United
Setting
Professional
Modifier
None
Typical Low
$114.82
Median
$165.96
Typical High
$275.42

Where Illinois sits

The same service costs 3.7 times more in Alaska than in Delaware. 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· 44th of 51

$214

AK $617DE $166

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.