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Fibrin-Stabilizing Factor (XIII) Solubility Screen

Illinois 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?

$7.08

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $7.08 for this service. The price depends on where it is billed: about $7.08 from a physician practice, and about $19.95 from a hospital or other facility.

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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$7.08$5.75 to $7.41
FacilityA hospital or hospital-owned outpatient department$19.95$12.30 to $29.51

How much rates vary

Facilitymedian $20 · 10th to 90th $10 to $50Professionalmedian $7 · 10th to 90th $3 to $13
$5$10$20$50$100facility $20professional $7

Distribution of negotiated rates across all payers (price axis is log-scale). 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
$13.80
Typical High
$27.54
Aetna
Setting
Professional
Modifier
None
Typical Low
$7.24
Median
$7.41
Typical High
$10.00
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$11.48
Median
$18.62
Typical High
$93.33
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$3.47
Median
$7.08
Typical High
$7.08
Cigna
Setting
Facility
Modifier
None
Typical Low
$10.23
Median
$20.89
Typical High
$38.02
Cigna
Setting
Professional
Modifier
None
Typical Low
$4.79
Median
$10.72
Typical High
$16.22
Hally Health
Setting
Professional
Modifier
None
Typical Low
$9.55
Median
$15.85
Typical High
$141.25
Hally Health
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
None
Typical Low
$11.75
Median
$11.75
Typical High
$11.75
Molina
Setting
Professional
Modifier
None
Typical Low
$5.01
Median
$5.01
Typical High
$11.48
United
Setting
Facility
Modifier
None
Typical Low
$9.12
Median
$10.96
Typical High
$23.44
United
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$6.76
Typical High
$9.77
4 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$3.72
Median
$6.61
Typical High
$13.80
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$1.48
Median
$2.63
Typical High
$5.50
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$3.72
Median
$3.72
Typical High
$4.57
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.48
Median
$1.48
Typical High
$1.82

Where Illinois 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.

Illinois· 47th of 51

$7.08

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.