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Blood Test Measuring Clot Formation Time

South Carolina 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?

$25.12

Typical negotiated rate. In South Carolina, October 2026.

Insurers have agreed to pay about $25.12 for this service. The price depends on where it is billed: about $16.60 from a physician practice, and about $34.67 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$16.60$9.77 to $26.92
FacilityA hospital or hospital-owned outpatient department$34.67$26.30 to $57.54

How much rates vary

Facilitymedian $35 · 10th to 90th $15 to $66Professionalmedian $17 · 10th to 90th $7 to $27
$5$10$20$50$100facility $35professional $17

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
$7.76
Median
$7.76
Typical High
$7.76
Aetna
Setting
Professional
Modifier
None
Typical Low
$7.76
Median
$7.76
Typical High
$7.94
BCBS South Carolina
Setting
Facility
Modifier
None
Typical Low
$21.88
Median
$37.15
Typical High
$67.61
BCBS South Carolina
Setting
Professional
Modifier
None
Typical Low
$9.77
Median
$25.12
Typical High
$30.90
Cigna
Setting
Facility
Modifier
None
Typical Low
$18.62
Median
$25.12
Typical High
$60.26
Cigna
Setting
Professional
Modifier
None
Typical Low
$4.90
Median
$6.46
Typical High
$12.59
Medcost
Setting
Facility
Modifier
None
Typical Low
$7.41
Median
$9.77
Typical High
$16.22
Medcost
Setting
Professional
Modifier
None
Typical Low
$10.96
Median
$18.20
Typical High
$30.20
United
Setting
Facility
Modifier
None
Typical Low
$8.91
Median
$8.91
Typical High
$11.75
United
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$6.92
Typical High
$13.80
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
$3.80
Median
$3.80
Typical High
$3.98
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.55
Median
$1.55
Typical High
$1.58

Where South Carolina 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.

South Carolina· 2nd of 51

$25.12

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.