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Blood Test Measuring Clot Formation Time

Washington, DC 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?

$7.94

Typical negotiated rate. In Washington, DC, October 2026.

Insurers have agreed to pay about $7.94 for this service. Most negotiated rates run $7.08 to $9.77.

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.

How much rates vary

Facilitymedian $17 · 10th to 90th $7 to $37Professionalmedian $8 · 10th to 90th $6 to $14
$5$10$20$50facility $17professional $8

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
Facility
Modifier
None
Typical Low
$7.41
Median
$7.41
Typical High
$20.89
Aetna
Setting
Professional
Modifier
None
Typical Low
$7.41
Median
$7.41
Typical High
$7.41
CareFirst
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$7.94
Typical High
$9.77
Cigna
Setting
Facility
Modifier
None
Typical Low
$15.85
Median
$16.60
Typical High
$37.15
Cigna
Setting
Professional
Modifier
None
Typical Low
$5.37
Median
$11.22
Typical High
$70.79
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$19.05
Median
$19.05
Typical High
$20.42
United
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$6.17
Typical High
$12.02

Where Washington, DC 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.

Washington, DC· 46th of 51

$7.94

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.