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Specialized Clotting Test for Antiphospholipid Antibodies

Illinois rates for HCPCS 85597

This is a specialized blood clotting test used to help confirm the presence of a lupus anticoagulant, an antibody that interferes with normal blood clotting tests and is linked to an increased risk of abnormal blood clots. It is typically ordered as part of a broader workup when this kind of antibody is suspected.

Rates data updated October 2026.

How much does Specialized Clotting Test for Antiphospholipid Antibodies cost?

$13.80

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $13.80 for this service. The price depends on where it is billed: about $13.80 from a physician practice, and about $38.90 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$13.80$11.48 to $14.79
FacilityA hospital or hospital-owned outpatient department$38.90$24.55 to $60.26

How much rates vary

Facilitymedian $39 · 10th to 90th $20 to $102Professionalmedian $14 · 10th to 90th $3 to $25
$5$10$20$50$100$200facility $39professional $14

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
$15.49
Median
$21.88
Typical High
$53.70
Aetna
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$14.79
Typical High
$17.78
Ambetter
Setting
Professional
Modifier
None
Typical Low
$24.55
Median
$24.55
Typical High
$24.55
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$22.91
Median
$38.90
Typical High
$186.21
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$3.47
Median
$13.80
Typical High
$13.80
Cigna
Setting
Facility
Modifier
None
Typical Low
$20.42
Median
$41.69
Typical High
$74.13
Cigna
Setting
Professional
Modifier
None
Typical Low
$9.33
Median
$21.38
Typical High
$32.36
Hally Health
Setting
Professional
Modifier
None
Typical Low
$19.05
Median
$31.62
Typical High
$128.82
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
$23.44
Median
$23.44
Typical High
$23.44
Molina
Setting
Professional
Modifier
None
Typical Low
$10.00
Median
$10.00
Typical High
$22.39
United
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$21.38
Typical High
$22.39
United
Setting
Professional
Modifier
None
Typical Low
$7.59
Median
$11.48
Typical High
$19.50
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
$7.41
Median
$13.18
Typical High
$26.92
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$2.95
Median
$5.25
Typical High
$10.96
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$7.41
Median
$7.41
Typical High
$8.91
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.95
Median
$2.95
Typical High
$3.63

Where Illinois sits

The same service costs 6.2 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· 45th of 51

$13.80

KS $46.77AL $7.59

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.