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Blood Test Measuring Clot Formation Time

Washington 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?

$10.00

Typical negotiated rate. In Washington, July 2026.

Insurers have agreed to pay about $10.00 for this service. The price depends on where it is billed: about $9.33 from a physician practice, and about $15.49 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 9 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$9.33$8.51 to $11.22
FacilityA hospital or hospital-owned outpatient department$15.49$10.23 to $21.38

How much rates vary

Facilitymedian $15 · 10th to 90th $10 to $36Professionalmedian $9 · 10th to 90th $6 to $19
$5.0$10.0$20.0$50.0$100.0facility $15professional $9

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
$9.33
Median
$18.62
Typical High
$53.70
Aetna
Setting
Professional
Modifier
Global
Typical Low
$8.51
Median
$9.33
Typical High
$64.57
Asuris Northwest Health
Setting
Facility
Modifier
Global
Typical Low
$9.77
Median
$12.30
Typical High
$26.92
Asuris Northwest Health
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$8.91
Typical High
$10.00
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.23
Median
$20.89
Typical High
$31.62
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$10.47
Typical High
$15.14
Molina
Setting
Professional
Modifier
Global
Typical Low
$6.31
Median
$8.71
Typical High
$64.57
Pacific Source
Setting
Facility
Modifier
Global
Typical Low
$9.77
Median
$9.77
Typical High
$19.95
Pacific Source
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$9.77
Typical High
$11.75
Premera BCBS
Setting
Facility
Modifier
Global
Typical Low
$9.77
Median
$17.38
Typical High
$26.92
Premera BCBS
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$8.91
Typical High
$11.75
Regence BlueShield
Setting
Facility
Modifier
Global
Typical Low
$9.77
Median
$14.79
Typical High
$26.30
Regence BlueShield
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$8.91
Typical High
$9.77
United
Setting
Facility
Modifier
Global
Typical Low
$9.33
Median
$11.75
Typical High
$11.75
United
Setting
Professional
Modifier
Global
Typical Low
$4.17
Median
$5.62
Typical High
$11.75
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$4.47
Median
$5.13
Typical High
$17.78

Where Washington 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.

Washington $10.00 · 26th 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.