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CSTB Gene Test

South Dakota 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?

$417

Typical negotiated rate. In South Dakota, July 2026.

Insurers have agreed to pay about $417 for this service. The price depends on where it is billed: about $363 from a physician practice, and about $525 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 6 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$363$214 to $646
FacilityA hospital or hospital-owned outpatient department$525$501 to $525

How much rates vary

Facilitymedian $525 · 10th to 90th $309 to $525Professionalmedian $363 · 10th to 90th $186 to $661
$200$500facility $525professional $363

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. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$190.55
Median
$316.23
Typical High
$316.23
Aetna
Setting
Professional
Modifier
Global
Typical Low
$186.21
Median
$213.80
Typical High
$257.04
Cigna
Setting
Facility
Modifier
Global
Typical Low
$524.81
Median
$524.81
Typical High
$524.81
Cigna
Setting
Professional
Modifier
Global
Typical Low
$331.13
Median
$524.81
Typical High
$660.69
Medica
Setting
Facility
Modifier
Global
Typical Low
$257.04
Median
$309.03
Typical High
$501.19
Medica
Setting
Professional
Modifier
Global
Typical Low
$141.25
Median
$141.25
Typical High
$1,380.38
Sanford Health Plan
Setting
Professional
Modifier
Global
Typical Low
$389.05
Median
$645.65
Typical High
$758.58
United
Setting
Professional
Modifier
Global
Typical Low
$114.82
Median
$165.96
Typical High
$363.08
Wellmark
Setting
Professional
Modifier
Global
Typical Low
$275.42
Median
$275.42
Typical High
$275.42

Where South Dakota 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.

South Dakota· 4th of 51

$417

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.