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Fibrin-Stabilizing Factor (XIII) Solubility Screen

Colorado 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?

$9.12

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $9.12 for this service. The price depends on where it is billed: about $6.31 from a physician practice, and about $26.30 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 7 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$6.31$3.80 to $7.24
FacilityA hospital or hospital-owned outpatient department$26.30$16.60 to $31.62

How much rates vary

Facilitymedian $26 · 10th to 90th $7 to $42Professionalmedian $6 · 10th to 90th $4 to $16
$5$10$20$50facility $26professional $6

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
$6.92
Median
$19.05
Typical High
$41.69
Aetna
Setting
Professional
Modifier
None
Typical Low
$6.03
Median
$6.92
Typical High
$9.12
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$10.23
Median
$27.54
Typical High
$41.69
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$6.31
Typical High
$18.62
Cigna
Setting
Facility
Modifier
None
Typical Low
$5.37
Median
$10.96
Typical High
$27.54
Cigna
Setting
Professional
Modifier
None
Typical Low
$4.57
Median
$6.76
Typical High
$12.88
Denver HMP
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$10.00
Typical High
$18.20
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$7.24
Median
$13.18
Typical High
$35.48
Select Health
Setting
Facility
Modifier
None
Typical Low
$9.12
Median
$16.98
Typical High
$19.05
Select Health
Setting
Professional
Modifier
None
Typical Low
$6.31
Median
$6.31
Typical High
$9.12
United
Setting
Facility
Modifier
None
Typical Low
$10.96
Median
$10.96
Typical High
$10.96
United
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$5.25
Typical High
$7.08
2 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
Professional
Modifier
52 · Reduced service
Typical Low
$3.39
Median
$3.47
Typical High
$4.57
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.38
Median
$1.38
Typical High
$1.82

Where Colorado 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.

Colorado· 25th of 51

$9.12

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.