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Fibrin-Stabilizing Factor (XIII) Solubility Screen

Washington, DC rates for HCPCS 85291

Screens for a shortage of the clotting protein that stabilizes fibrin, the mesh holding a blood clot together, known as factor XIII. A clot formed from the blood sample is placed in a solution and watched: a clot that dissolves points to a deficiency, while a clot that holds together does not. The answer is yes-or-no rather than a measured level or activity figure.

Rates data updated October 2026.

How much does Fibrin-Stabilizing Factor (XIII) Solubility Screen cost?

$7.24

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

Insurers have agreed to pay about $7.24 for this service. Most negotiated rates run $6.61 to $11.22.

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 $15 · 10th to 90th $7 to $35Professionalmedian $7 · 10th to 90th $5 to $14
$5$10$20$50facility $15professional $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
Facility
Modifier
None
Typical Low
$6.76
Median
$6.76
Typical High
$6.76
Aetna
Setting
Professional
Modifier
None
Typical Low
$6.76
Median
$6.76
Typical High
$6.76
CareFirst
Setting
Professional
Modifier
None
Typical Low
$6.61
Median
$7.24
Typical High
$11.22
Cigna
Setting
Facility
Modifier
None
Typical Low
$14.79
Median
$15.49
Typical High
$34.67
Cigna
Setting
Professional
Modifier
None
Typical Low
$5.01
Median
$10.23
Typical High
$66.07
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$17.38
Median
$17.38
Typical High
$19.05
United
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$5.62
Typical High
$13.80

Where Washington, DC sits

The same service costs 5.9 times more in Kansas than in Alabama. 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· 45th of 51

$7.24

KS $32.36AL $5.50

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.