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Repeat Expansion Test, Inherited Ataxia

Washington, DC rates for HCPCS 81181

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.

Facilitymedian $166 · 10th–90th $102$4470%20%40%10th90th$166Professionalmedian $102 · 10th–90th $98$1070%50%10th90th$102$0.2$1.0$5.0$20.0$100.0$500.0

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$102.33
Median
$102.33
Typical High
$446.68
Aetna
Setting
Professional
Modifier
Global
Typical Low
$102.33
Median
$102.33
Typical High
$107.15
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$97.72
Median
$97.72
Typical High
$131.83
Cigna
Setting
Facility
Modifier
Global
Typical Low
$223.87
Median
$229.09
Typical High
$524.81
Cigna
Setting
Professional
Modifier
Global
Typical Low
$77.62
Median
$158.49
Typical High
$616.60
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$158.49
Median
$239.88
Typical High
$275.42
United
Setting
Facility
Modifier
Global
Typical Low
$57.54
Median
$165.96
Typical High
$165.96
United
Setting
Professional
Modifier
Global
Typical Low
$57.54
Median
$61.66
Typical High
$128.82