go back

Fibrin-Stabilizing Factor (XIII) Solubility Screen

Maryland 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 Maryland, 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 $6.61 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 6 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$6.61 to $11.22
FacilityA hospital or hospital-owned outpatient department$6.61$4.79 to $20.42

How much rates vary

Facilitymedian $7 · 10th to 90th $4 to $30Professionalmedian $7 · 10th to 90th $5 to $35
$5$10$20$50facility $7professional $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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$20.42
Median
$20.42
Typical High
$44.67
Aetna
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$6.76
Typical High
$34.67
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$2.82
Median
$7.24
Typical High
$8.91
Cigna
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$6.17
Typical High
$11.75
Cigna
Setting
Professional
Modifier
Global
Typical Low
$4.90
Median
$9.12
Typical High
$22.39
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$10.96
Typical High
$17.38
United
Setting
Facility
Modifier
Global
Typical Low
$3.80
Median
$4.37
Typical High
$7.41
United
Setting
Professional
Modifier
Global
Typical Low
$4.07
Median
$5.25
Typical High
$8.51
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$3.55
Median
$6.31
Typical High
$13.80

Where Maryland 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.

Maryland· 51st 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.