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Fibrin-Stabilizing Factor (XIII) Solubility Screen

Louisiana 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?

$11.22

Typical negotiated rate. In Louisiana, July 2026.

Insurers have agreed to pay about $11.22 for this service. The price depends on where it is billed: about $10.00 from a physician practice, and about $12.59 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$10.00$8.51 to $11.75
FacilityA hospital or hospital-owned outpatient department$12.59$10.96 to $23.44

How much rates vary

Facilitymedian $13 · 10th to 90th $9 to $33Professionalmedian $10 · 10th to 90th $6 to $16
$5$10$20$50facility $13professional $10

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
$9.55
Median
$12.59
Typical High
$33.11
Aetna
Setting
Professional
Modifier
Global
Typical Low
$6.92
Median
$10.96
Typical High
$18.62
BCBS
Setting
Facility
Modifier
Global
Typical Low
$11.22
Median
$18.20
Typical High
$33.11
BCBS
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$10.00
Typical High
$17.38
Christus
Setting
Facility
Modifier
Global
Typical Low
$39.81
Median
$39.81
Typical High
$39.81
Cigna
Setting
Facility
Modifier
Global
Typical Low
$9.77
Median
$29.51
Typical High
$54.95
Cigna
Setting
Professional
Modifier
Global
Typical Low
$4.27
Median
$6.03
Typical High
$10.23
United
Setting
Facility
Modifier
Global
Typical Low
$3.80
Median
$9.12
Typical High
$10.96
United
Setting
Professional
Modifier
Global
Typical Low
$3.80
Median
$5.25
Typical High
$12.30

Where Louisiana 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.

Louisiana· 12th of 51

$11.22

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.