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Blood Test Measuring Clot Formation Time

South Dakota rates for HCPCS 85635

This blood test measures how long it takes a blood sample to clot after a specific clot-triggering substance is added to the sample. It's used to help evaluate bleeding or clotting problems by focusing on a particular step in the clotting process. It's a simple blood draw, often ordered alongside other clotting tests.

Rates data updated October 2026.

How much does Blood Test Measuring Clot Formation Time cost?

$11.22

Typical negotiated rate. In South Dakota, October 2026.

Insurers have agreed to pay about $11.22 for this service. The price depends on where it is billed: about $11.22 from a physician practice, and about $15.14 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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$11.22$6.92 to $20.42
FacilityA hospital or hospital-owned outpatient department$15.14$11.22 to $18.62

How much rates vary

Facilitymedian $15 · 10th to 90th $9 to $30Professionalmedian $11 · 10th to 90th $7 to $23
$5$10$20$50$100facility $15professional $11

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$6.92
Typical High
$11.22
Aetna
Setting
Professional
Modifier
None
Typical Low
$6.61
Median
$6.61
Typical High
$9.33
Cigna
Setting
Facility
Modifier
None
Typical Low
$18.62
Median
$18.62
Typical High
$18.62
Cigna
Setting
Professional
Modifier
None
Typical Low
$11.22
Median
$18.62
Typical High
$23.44
Medica
Setting
Facility
Modifier
None
Typical Low
$9.33
Median
$11.22
Typical High
$37.15
Medica
Setting
Professional
Modifier
None
Typical Low
$5.89
Median
$8.91
Typical High
$13.80
Sanford Health Plan
Setting
Professional
Modifier
None
Typical Low
$16.22
Median
$22.91
Typical High
$26.92
United
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$6.92
Typical High
$11.75
Wellmark
Setting
Professional
Modifier
None
Typical Low
$9.77
Median
$9.77
Typical High
$9.77

Where South Dakota sits

The same service costs 4.1 times more in Kansas than in Nebraska. 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· 22nd of 51

$11.22

KS $26.92NE $6.61

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.