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Clotting Protein Activity Test

Connecticut rates for HCPCS 85397

A blood test that measures how well a particular protein involved in forming or dissolving clots is actually working, rather than simply how much of it is present. It is used when a specific measurement is needed that no standard named test covers.

Rates data updated July 2026.

How much does Clotting Protein Activity Test cost?

$21.88

Typical negotiated rate. In Connecticut, July 2026.

Insurers have agreed to pay about $21.88 for this service. The price depends on where it is billed: about $20.89 from a physician practice, and about $51.29 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 5 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$20.89$20.89 to $22.39
FacilityA hospital or hospital-owned outpatient department$51.29$31.62 to $64.57

How much rates vary

Facilitymedian $51 · 10th to 90th $31 to $89Professionalmedian $21 · 10th to 90th $12 to $35
$10.0$20.0$50.0$100.0$200.0facility $51professional $21

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
$30.90
Median
$54.95
Typical High
$89.13
Aetna
Setting
Professional
Modifier
Global
Typical Low
$6.46
Median
$20.89
Typical High
$32.36
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$31.62
Median
$47.86
Typical High
$83.18
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$12.30
Median
$20.42
Typical High
$38.90
Cigna
Setting
Facility
Modifier
Global
Typical Low
$20.42
Median
$47.86
Typical High
$112.20
Cigna
Setting
Professional
Modifier
Global
Typical Low
$17.38
Median
$32.36
Typical High
$47.86
ConnectiCare
Setting
Professional
Modifier
Global
Typical Low
$14.45
Median
$25.70
Typical High
$40.74
United
Setting
Facility
Modifier
Global
Typical Low
$30.90
Median
$30.90
Typical High
$30.90
United
Setting
Professional
Modifier
Global
Typical Low
$10.72
Median
$20.42
Typical High
$53.70

Where Connecticut sits

The same service costs 2.8 times more in South Dakota than in Florida. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Connecticut $21.88 · 50th of 51
SD $58.88FL $21.38

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.