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Clotting Protein Activity Test

Illinois 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?

$31.62

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $31.62 for this service. The price depends on where it is billed: about $23.99 from a physician practice, and about $63.10 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 7 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$23.99$19.05 to $30.90
FacilityA hospital or hospital-owned outpatient department$63.10$38.90 to $263

How much rates vary

Facilitymedian $63 · 10th to 90th $30 to $372Professionalmedian $24 · 10th to 90th $3 to $58
$5.0$10.0$20.0$50.0$100.0$200.0$500.0facility $63professional $24

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
$30.20
Median
$63.10
Typical High
$371.54
Aetna
Setting
Professional
Modifier
Global
Typical Low
$23.99
Median
$26.30
Typical High
$63.10
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$19.05
Median
$19.05
Typical High
$19.05
BCBS
Setting
Facility
Modifier
Global
Typical Low
$38.02
Median
$107.15
Typical High
$389.05
BCBS
Setting
Professional
Modifier
Global
Typical Low
$3.47
Median
$21.38
Typical High
$23.99
Cigna
Setting
Facility
Modifier
Global
Typical Low
$30.20
Median
$64.57
Typical High
$141.25
Cigna
Setting
Professional
Modifier
Global
Typical Low
$15.14
Median
$35.48
Typical High
$48.98
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$32.36
Median
$69.18
Typical High
$288.40
Hally Health
Setting
Facility
Modifier
Global
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$39.81
Median
$39.81
Typical High
$39.81
Molina
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$16.98
United
Setting
Facility
Modifier
Global
Typical Low
$17.78
Median
$30.90
Typical High
$61.66
United
Setting
Professional
Modifier
Global
Typical Low
$10.96
Median
$15.49
Typical High
$30.90

Where Illinois 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.

Illinois $31.62 · 24th 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.