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Thrombin Time Measured Across Dilutions

Washington rates for HCPCS 85675

A clotting test in which thrombin is added to plasma and the time to form a clot is measured across a graded series of dilutions, giving more detail than a single reading. It helps show whether slow clotting comes from a problem with fibrinogen or from something in the blood interfering with the process.

Rates data updated October 2026.

How much does Thrombin Time Measured Across Dilutions cost?

$6.46

Typical negotiated rate. In Washington, October 2026.

Insurers have agreed to pay about $6.46 for this service. The price depends on where it is billed: about $6.17 from a physician practice, and about $10.23 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 9 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$6.17$4.47 to $6.92
FacilityA hospital or hospital-owned outpatient department$10.23$7.59 to $13.80

How much rates vary

Facilitymedian $10 · 10th to 90th $6 to $19Professionalmedian $6 · 10th to 90th $3 to $8
$5$10$20facility $10professional $6

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
$6.46
Median
$6.46
Typical High
$20.89
Aetna
Setting
Professional
Modifier
None
Typical Low
$6.46
Median
$6.46
Typical High
$8.13
Asuris Northwest Health
Setting
Facility
Modifier
None
Typical Low
$5.13
Median
$7.59
Typical High
$19.05
Asuris Northwest Health
Setting
Professional
Modifier
None
Typical Low
$5.13
Median
$6.17
Typical High
$6.92
Cigna
Setting
Facility
Modifier
None
Typical Low
$7.08
Median
$12.30
Typical High
$17.78
Cigna
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$7.24
Typical High
$9.77
Molina
Setting
Professional
Modifier
None
Typical Low
$4.37
Median
$6.03
Typical High
$6.03
Pacific Source
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$9.55
Typical High
$13.80
Premera BCBS
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$12.02
Typical High
$19.05
Premera BCBS
Setting
Professional
Modifier
None
Typical Low
$6.17
Median
$6.17
Typical High
$8.13
Regence BlueShield
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$11.22
Typical High
$19.05
Regence BlueShield
Setting
Professional
Modifier
None
Typical Low
$5.13
Median
$6.17
Typical High
$6.92
United
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$8.13
Typical High
$8.13
United
Setting
Professional
Modifier
None
Typical Low
$2.88
Median
$3.09
Typical High
$7.59
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$3.09
Median
$6.92
Typical High
$12.30
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
$3.24
Median
$3.24
Typical High
$4.07
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.29
Median
$1.29
Typical High
$1.62

Where Washington sits

The same service costs 4.2 times more in Kansas than in Maryland. 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.

Washington· 27th of 51

$6.46

KS $21.38MD $5.13

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.