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Thrombin Time Measured Across Dilutions

Massachusetts 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?

$8.32

Typical negotiated rate. In Massachusetts, October 2026.

Insurers have agreed to pay about $8.32 for this service. The price depends on where it is billed: about $6.92 from a physician practice, and about $10.00 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$6.92$6.03 to $10.96
FacilityA hospital or hospital-owned outpatient department$10.00$7.08 to $18.62

How much rates vary

Facilitymedian $10 · 10th to 90th $6 to $24Professionalmedian $7 · 10th to 90th $4 to $19
$10$100$1Kfacility $10professional $7

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
$18.62
Typical High
$30.90
Aetna
Setting
Professional
Modifier
None
Typical Low
$6.46
Median
$6.46
Typical High
$7.76
AllWays Health Partners
Setting
Facility
Modifier
None
Typical Low
$5.13
Median
$7.59
Typical High
$21.88
AllWays Health Partners
Setting
Professional
Modifier
None
Typical Low
$4.07
Median
$6.92
Typical High
$17.38
BCBS Massachusetts
Setting
Facility
Modifier
None
Typical Low
$9.77
Median
$16.60
Typical High
$29.51
BCBS Massachusetts
Setting
Professional
Modifier
None
Typical Low
$6.46
Median
$6.76
Typical High
$8.71
Cigna
Setting
Facility
Modifier
None
Typical Low
$4.47
Median
$9.77
Typical High
$19.50
Cigna
Setting
Professional
Modifier
None
Typical Low
$4.68
Median
$8.32
Typical High
$26.92
Fallon Health
Setting
Facility
Modifier
None
Typical Low
$8.32
Median
$11.75
Typical High
$4,897.79
Fallon Health
Setting
Professional
Modifier
None
Typical Low
$10.00
Median
$10.00
Typical High
$11.75
Harvard Pilgrim
Setting
Professional
Modifier
None
Typical Low
$3.47
Median
$6.92
Typical High
$26.30
Mass General Brigham
Setting
Facility
Modifier
None
Typical Low
$5.13
Median
$7.59
Typical High
$21.88
Mass General Brigham
Setting
Professional
Modifier
None
Typical Low
$4.07
Median
$6.92
Typical High
$17.38
United
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$6.92
Typical High
$23.99
United
Setting
Professional
Modifier
None
Typical Low
$2.75
Median
$5.25
Typical High
$14.45
Well Sense
Setting
Facility
Modifier
None
Typical Low
$6.03
Median
$7.59
Typical High
$12.02
Well Sense
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$7.08
Typical High
$8.51
3 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
$3.89
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.29
Median
$1.29
Typical High
$1.55
Fallon Health
Setting
Facility
Modifier
QW · Waived lab test
Typical Low
$6.92
Median
$8.91
Typical High
$10.72

Where Massachusetts 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.

Massachusetts· 13th of 51

$8.32

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.