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Blood Test Measuring Clot Formation Time

Tennessee 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 July 2026.

How much does Blood Test Measuring Clot Formation Time cost?

$7.76

Typical negotiated rate. In Tennessee, July 2026.

Insurers have agreed to pay about $7.76 for this service. The price depends on where it is billed: about $7.76 from a physician practice, and about $15.14 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$7.76$7.41 to $8.71
FacilityA hospital or hospital-owned outpatient department$15.14$8.71 to $36.31

How much rates vary

Facilitymedian $15 · 10th to 90th $7 to $43Professionalmedian $8 · 10th to 90th $7 to $13
$2.0$5.0$10.0$20.0$50.0$100.0facility $15professional $8

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
$7.41
Median
$15.14
Typical High
$42.66
Aetna
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$7.41
Typical High
$10.47
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$23.99
Median
$23.99
Typical High
$23.99
BCBS
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$13.49
Typical High
$13.49
Cigna
Setting
Facility
Modifier
Global
Typical Low
$7.41
Median
$20.42
Typical High
$40.74
Cigna
Setting
Professional
Modifier
Global
Typical Low
$4.47
Median
$7.59
Typical High
$15.14
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$70.79
Median
$70.79
Typical High
$120.23
United
Setting
Facility
Modifier
Global
Typical Low
$4.17
Median
$9.77
Typical High
$10.47
United
Setting
Professional
Modifier
Global
Typical Low
$4.17
Median
$7.94
Typical High
$13.80

Where Tennessee sits

The same service costs 2.4 times more in Hawaii than in Washington, DC. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Tennessee $7.76 · 49th of 51
HI $17.78DC $7.41

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.