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Repeat Expansion Test, Inherited Ataxia

Montana rates for HCPCS 81179

A laboratory test on a blood sample that measures a short stretch of DNA that is normally repeated a set number of times within a single gene. An abnormally high number of repeats causes an inherited disorder of balance, coordination and speech that develops gradually over years. The test is used to confirm a diagnosis in someone with symptoms, or to test a relative of an affected person.

Rates data updated July 2026.

How much does Repeat Expansion Test, Inherited Ataxia cost?

$178

Typical negotiated rate. In Montana, July 2026.

Insurers have agreed to pay about $178 for this service. The price depends on where it is billed: about $170 from a physician practice, and about $204 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$170$158 to $269
FacilityA hospital or hospital-owned outpatient department$204$170 to $269

How much rates vary

Facilitymedian $204 · 10th to 90th $138 to $427Professionalmedian $170 · 10th to 90th $58 to $912
$100.0$200.0$500.0$1.0Kfacility $204professional $170

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
Professional
Modifier
Global
Typical Low
$158.49
Median
$158.49
Typical High
$912.01
BCBS
Setting
Professional
Modifier
Global
Typical Low
$181.97
Median
$181.97
Typical High
$181.97
Cigna
Setting
Facility
Modifier
Global
Typical Low
$199.53
Median
$234.42
Typical High
$776.25
Cigna
Setting
Professional
Modifier
Global
Typical Low
$64.57
Median
$64.57
Typical High
$199.53
MountainHealth Co-op
Setting
Facility
Modifier
Global
Typical Low
$138.04
Median
$186.21
Typical High
$416.87
MountainHealth Co-op
Setting
Professional
Modifier
Global
Typical Low
$138.04
Median
$186.21
Typical High
$416.87
Providence
Setting
Facility
Modifier
Global
Typical Low
$199.53
Median
$269.15
Typical High
$776.25
Providence
Setting
Professional
Modifier
Global
Typical Low
$123.03
Median
$123.03
Typical High
$218.78
United
Setting
Facility
Modifier
Global
Typical Low
$138.04
Median
$138.04
Typical High
$138.04
United
Setting
Professional
Modifier
Global
Typical Low
$57.54
Median
$57.54
Typical High
$138.04

Where Montana sits

The same service costs 3.4 times more in Alaska than in Delaware. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Montana $178 · 5th of 51
AK $309DE $91.20

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.