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CSTB Gene Test

Rhode Island 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 July 2026.

How much does CSTB Gene Test cost?

$204

Typical negotiated rate. In Rhode Island, July 2026.

Insurers have agreed to pay about $204 for this service. The price depends on where it is billed: about $204 from a physician practice, and about $407 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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 4 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$204$191 to $204
FacilityA hospital or hospital-owned outpatient department$407$316 to $1,230

How much rates vary

Facilitymedian $407 · 10th to 90th $275 to $1,585Professionalmedian $204 · 10th to 90th $166 to $275
$200$500$1Kfacility $407professional $204

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$794.33
Median
$1,230.27
Typical High
$1,584.89
Aetna
Setting
Professional
Modifier
Global
Typical Low
$190.55
Median
$190.55
Typical High
$204.17
BCBS
Setting
Facility
Modifier
Global
Typical Low
$245.47
Median
$316.23
Typical High
$354.81
BCBS
Setting
Professional
Modifier
Global
Typical Low
$204.17
Median
$204.17
Typical High
$302.00
Cigna
Setting
Facility
Modifier
Global
Typical Low
$758.58
Median
$758.58
Typical High
$758.58
Cigna
Setting
Professional
Modifier
Global
Typical Low
$138.04
Median
$162.18
Typical High
$426.58
United
Setting
Facility
Modifier
Global
Typical Low
$331.13
Median
$331.13
Typical High
$389.05
United
Setting
Professional
Modifier
Global
Typical Low
$114.82
Median
$165.96
Typical High
$398.11

Where Rhode Island sits

The same service costs 3.3 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.

Rhode Island· 49th of 51

$204

AK $617DE $186

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.