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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.

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

$6.76

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

Insurers have agreed to pay about $6.76 for this service. The price depends on where it is billed: about $6.76 from a physician practice, and about $15.49 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$6.76$6.76 to $6.76
FacilityA hospital or hospital-owned outpatient department$15.49$6.76 to $29.51

How much rates vary

Facilitymedian $15 · 10th to 90th $7 to $56Professionalmedian $7 · 10th to 90th $7 to $28
$5$10$20$50$100facility $15professional $7

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

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

Where Washington, DC sits

The same service costs 2.6 times more in South Dakota than in Maryland. 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· 50th of 51

$6.76

SD $17.38MD $6.76

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.