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CSTB Gene Test

Tennessee 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?

$219

Typical negotiated rate. In Tennessee, July 2026.

Insurers have agreed to pay about $219 for this service. The price depends on where it is billed: about $219 from a physician practice, and about $417 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 5 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$219$204 to $275
FacilityA hospital or hospital-owned outpatient department$417$234 to $912

How much rates vary

Facilitymedian $417 · 10th to 90th $204 to $1,175Professionalmedian $219 · 10th to 90th $145 to $331
$100$200$500$1K$2Kfacility $417professional $219

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
$204.17
Median
$416.87
Typical High
$1,174.90
Aetna
Setting
Professional
Modifier
Global
Typical Low
$204.17
Median
$218.78
Typical High
$316.23
BCBS
Setting
Professional
Modifier
Global
Typical Low
$144.54
Median
$275.42
Typical High
$275.42
Cigna
Setting
Facility
Modifier
Global
Typical Low
$123.03
Median
$398.11
Typical High
$794.33
Cigna
Setting
Professional
Modifier
Global
Typical Low
$123.03
Median
$151.36
Typical High
$380.19
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$1,318.26
Median
$1,318.26
Typical High
$1,318.26
Lucent Health
Setting
Professional
Modifier
Global
Typical Low
$1,380.38
Median
$2,041.74
Typical High
$2,041.74
United
Setting
Facility
Modifier
Global
Typical Low
$114.82
Median
$275.42
Typical High
$275.42
United
Setting
Professional
Modifier
Global
Typical Low
$114.82
Median
$165.96
Typical High
$281.84

Where Tennessee 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.

Tennessee· 41st of 51

$219

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.