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Specialized Clotting Test for Antiphospholipid Antibodies

Washington 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?

$16.98

Typical negotiated rate. In Washington, October 2026.

Insurers have agreed to pay about $16.98 for this service. The price depends on where it is billed: about $16.22 from a physician practice, and about $26.92 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 9 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$16.22$11.75 to $17.78
FacilityA hospital or hospital-owned outpatient department$26.92$19.50 to $36.31

How much rates vary

Facilitymedian $27 · 10th to 90th $18 to $49Professionalmedian $16 · 10th to 90th $8 to $21
$10$20$50facility $27professional $16

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
$16.98
Median
$16.98
Typical High
$35.48
Aetna
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$16.98
Typical High
$21.38
Asuris Northwest Health
Setting
Facility
Modifier
None
Typical Low
$13.49
Median
$22.39
Typical High
$48.98
Asuris Northwest Health
Setting
Professional
Modifier
None
Typical Low
$13.49
Median
$16.22
Typical High
$17.78
Cigna
Setting
Facility
Modifier
None
Typical Low
$18.62
Median
$32.36
Typical High
$46.77
Cigna
Setting
Professional
Modifier
None
Typical Low
$11.22
Median
$19.05
Typical High
$25.70
Molina
Setting
Professional
Modifier
None
Typical Low
$11.48
Median
$15.85
Typical High
$15.85
Pacific Source
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$19.05
Typical High
$36.31
Pacific Source
Setting
Professional
Modifier
None
Typical Low
$19.95
Median
$19.95
Typical High
$19.95
Premera BCBS
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$31.62
Typical High
$48.98
Premera BCBS
Setting
Professional
Modifier
None
Typical Low
$16.22
Median
$16.22
Typical High
$21.38
Regence BlueShield
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$29.51
Typical High
$48.98
Regence BlueShield
Setting
Professional
Modifier
None
Typical Low
$13.49
Median
$16.22
Typical High
$17.78
United
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$21.38
Typical High
$21.38
United
Setting
Professional
Modifier
None
Typical Low
$7.59
Median
$8.13
Typical High
$19.95
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$8.13
Median
$17.78
Typical High
$32.36
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
$8.51
Median
$8.51
Typical High
$10.72
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$3.39
Median
$3.39
Typical High
$4.27

Where Washington 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.

Washington· 26th of 51

$16.98

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.