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Blood Antibody Test For A Specific Organism

Washington rates for HCPCS 86784

This blood test looks for antibodies your immune system produced in response to a particular infectious organism. A positive result generally means you have been exposed to or infected by that organism at some point, while further testing sometimes distinguishes a recent infection from a past one. It is typically ordered when a specific infection is suspected based on symptoms or exposure history.

Rates data updated October 2026.

How much does Blood Antibody Test For A Specific Organism cost?

$11.75

Typical negotiated rate. In Washington, October 2026.

Insurers have agreed to pay about $11.75 for this service. The price depends on where it is billed: about $11.22 from a physician practice, and about $19.05 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$11.22$8.13 to $12.59
FacilityA hospital or hospital-owned outpatient department$19.05$13.80 to $25.12

How much rates vary

Facilitymedian $19 · 10th to 90th $13 to $35Professionalmedian $11 · 10th to 90th $5 to $15
$10$20$50facility $19professional $11

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
$11.75
Median
$11.75
Typical High
$38.90
Aetna
Setting
Professional
Modifier
None
Typical Low
$11.75
Median
$11.75
Typical High
$15.14
Asuris Northwest Health
Setting
Facility
Modifier
None
Typical Low
$9.33
Median
$13.80
Typical High
$34.67
Asuris Northwest Health
Setting
Professional
Modifier
None
Typical Low
$9.33
Median
$11.22
Typical High
$12.59
Cigna
Setting
Facility
Modifier
None
Typical Low
$13.18
Median
$22.91
Typical High
$38.90
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.76
Median
$13.18
Typical High
$18.20
Molina
Setting
Professional
Modifier
None
Typical Low
$8.13
Median
$8.13
Typical High
$12.59
Pacific Source
Setting
Facility
Modifier
None
Typical Low
$12.59
Median
$13.80
Typical High
$25.70
Pacific Source
Setting
Professional
Modifier
None
Typical Low
$12.59
Median
$12.59
Typical High
$12.59
Premera BCBS
Setting
Facility
Modifier
None
Typical Low
$12.59
Median
$21.88
Typical High
$34.67
Premera BCBS
Setting
Professional
Modifier
None
Typical Low
$11.22
Median
$11.22
Typical High
$15.14
Regence BlueShield
Setting
Facility
Modifier
None
Typical Low
$12.59
Median
$20.89
Typical High
$34.67
Regence BlueShield
Setting
Professional
Modifier
None
Typical Low
$9.33
Median
$11.22
Typical High
$12.59
United
Setting
Facility
Modifier
None
Typical Low
$12.59
Median
$15.14
Typical High
$15.14
United
Setting
Professional
Modifier
None
Typical Low
$5.25
Median
$5.62
Typical High
$14.13
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$5.62
Median
$12.59
Typical High
$22.39
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
$5.89
Median
$5.89
Typical High
$7.59
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.34
Median
$2.34
Typical High
$3.02

Where Washington sits

The same service costs 3.5 times more in South Carolina 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.

Washington· 30th of 51

$11.75

SC $32.36MD $9.33

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.