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Blood Test Measuring Clot Formation Time

Connecticut 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 October 2026.

How much does Blood Test Measuring Clot Formation Time cost?

$9.33

Typical negotiated rate. In Connecticut, October 2026.

Insurers have agreed to pay about $9.33 for this service. The price depends on where it is billed: about $6.76 from a physician practice, and about $13.80 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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$6.76$5.01 to $10.23
FacilityA hospital or hospital-owned outpatient department$13.80$11.48 to $20.89

How much rates vary

Facilitymedian $14 · 10th to 90th $10 to $26Professionalmedian $7 · 10th to 90th $5 to $14
$5$10$20$50facility $14professional $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
Professional
Modifier
None
Typical Low
$5.25
Median
$8.91
Typical High
$9.12
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$10.23
Median
$13.49
Typical High
$24.55
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$4.90
Median
$5.89
Typical High
$13.80
Cigna
Setting
Facility
Modifier
None
Typical Low
$6.46
Median
$15.85
Typical High
$35.48
Cigna
Setting
Professional
Modifier
None
Typical Low
$6.61
Median
$10.23
Typical High
$15.85
ConnectiCare
Setting
Professional
Modifier
None
Typical Low
$5.75
Median
$7.94
Typical High
$14.45
United
Setting
Facility
Modifier
None
Typical Low
$33.11
Median
$33.11
Typical High
$33.11
United
Setting
Professional
Modifier
None
Typical Low
$4.90
Median
$8.71
Typical High
$17.38
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
$3.98
Median
$4.47
Typical High
$4.47
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.58
Median
$1.78
Typical High
$1.78

Where Connecticut sits

The same service costs 4.1 times more in Kansas than in Nebraska. 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.

Connecticut· 31st of 51

$9.33

KS $26.92NE $6.61

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.