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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 July 2026.

Facilitymedian $15 · 10th–90th $7$560%20%10th90th$15Professionalmedian $7 · 10th–90th $7$280%50%90th$7$5.0$10.0$20.0$50.0$100.0

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$6.76
Median
$29.51
Typical High
$56.23
Aetna
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$6.76
Typical High
$6.76
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$22.91
Median
$40.74
Typical High
$100.00
Cigna
Setting
Facility
Modifier
Global
Typical Low
$14.79
Median
$15.49
Typical High
$34.67
Cigna
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$10.23
Typical High
$70.79
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$17.38
Median
$17.38
Typical High
$18.62
United
Setting
Facility
Modifier
Global
Typical Low
$5.25
Median
$10.96
Typical High
$10.96
United
Setting
Professional
Modifier
Global
Typical Low
$3.80
Median
$5.62
Typical High
$13.80