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VKORC1 Warfarin Sensitivity Gene Test

Iowa rates for HCPCS 81355

A genetic test that checks for the common changes in the VKORC1 gene, which affects how strongly a person responds to the blood thinner warfarin. People carrying certain versions need a lower or a higher dose to reach a safe level of blood thinning. A blood or saliva sample is used.

Rates data updated October 2026.

How much does VKORC1 Warfarin Sensitivity Gene Test cost?

$95.50

Typical negotiated rate. In Iowa, October 2026.

Insurers have agreed to pay about $95.50 for this service. The price depends on where it is billed: about $89.13 from a physician practice, and about $158 from a hospital or other facility.

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 8 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$89.13$52.48 to $170
FacilityA hospital or hospital-owned outpatient department$158$89.13 to $191

How much rates vary

Facilitymedian $158 · 10th to 90th $89 to $234Professionalmedian $89 · 10th to 90th $52 to $347
$50$100$200facility $158professional $89

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$69.18
Median
$186.21
Typical High
$251.19
Aetna
Setting
Professional
Modifier
None
Typical Low
$58.88
Median
$69.18
Typical High
$104.71
Cigna
Setting
Professional
Modifier
None
Typical Low
$109.65
Median
$169.82
Typical High
$213.80
Hally Health
Setting
Professional
Modifier
None
Typical Low
$97.72
Median
$151.36
Typical High
$269.15
Medica
Setting
Facility
Modifier
None
Typical Low
$89.13
Median
$158.49
Typical High
$204.17
Medica
Setting
Professional
Modifier
None
Typical Low
$52.48
Median
$104.71
Typical High
$436.52
Midlands
Setting
Professional
Modifier
None
Typical Low
$109.65
Median
$109.65
Typical High
$117.49
Oscar Health
Setting
Professional
Modifier
None
Typical Low
$89.13
Median
$95.50
Typical High
$186.21
United
Setting
Facility
Modifier
None
Typical Low
$89.13
Median
$89.13
Typical High
$223.87
United
Setting
Professional
Modifier
None
Typical Low
$52.48
Median
$52.48
Typical High
$181.97
Wellmark
Setting
Professional
Modifier
None
Typical Low
$89.13
Median
$89.13
Typical High
$89.13
2 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$34.67
Median
$34.67
Typical High
$52.48
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$13.80
Median
$13.80
Typical High
$21.38

Where Iowa sits

The same service costs 3.8 times more in Alaska than in Florida. 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.

Iowa· 15th of 51

$95.50

AK $200FL $52.48

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.