go back

Blood Test Measuring Clot Formation Time

Maryland 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?

$7.41

Typical negotiated rate. In Maryland, October 2026.

Insurers have agreed to pay about $7.41 for this service. Most negotiated rates run $6.46 to $7.94.

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 6 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $7 · 10th to 90th $5 to $33Professionalmedian $7 · 10th to 90th $4 to $10
$5$10$20facility $7professional $7

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
None
Typical Low
$7.24
Median
$7.41
Typical High
$7.94
CareFirst
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$7.94
Typical High
$7.94
Cigna
Setting
Facility
Modifier
None
Typical Low
$5.25
Median
$6.92
Typical High
$12.88
Cigna
Setting
Professional
Modifier
None
Typical Low
$5.25
Median
$9.77
Typical High
$23.99
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$9.77
Median
$11.22
Typical High
$19.05
United
Setting
Facility
Modifier
None
Typical Low
$33.11
Median
$33.11
Typical High
$33.11
United
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$5.62
Typical High
$8.51
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$9.77
Typical High
$9.77
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
$3.63
Median
$3.72
Typical High
$3.72
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.45
Median
$1.48
Typical High
$1.48

Where Maryland 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.

Maryland· 50th of 51

$7.41

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.