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Blood Antibody Test For A Specific Organism

Illinois 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?

$9.77

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $9.77 for this service. The price depends on where it is billed: about $9.77 from a physician practice, and about $27.54 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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$9.77$7.59 to $10.23
FacilityA hospital or hospital-owned outpatient department$27.54$16.98 to $47.86

How much rates vary

Facilitymedian $28 · 10th to 90th $14 to $98Professionalmedian $10 · 10th to 90th $3 to $17
$5$10$20$50$100facility $28professional $10

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
$10.23
Median
$19.50
Typical High
$38.02
Aetna
Setting
Professional
Modifier
None
Typical Low
$10.23
Median
$10.23
Typical High
$11.48
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$15.14
Median
$21.88
Typical High
$158.49
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$3.47
Median
$9.77
Typical High
$9.77
Cigna
Setting
Facility
Modifier
None
Typical Low
$14.13
Median
$29.51
Typical High
$51.29
Cigna
Setting
Professional
Modifier
None
Typical Low
$6.46
Median
$14.79
Typical High
$22.91
Hally Health
Setting
Professional
Modifier
None
Typical Low
$12.88
Median
$19.95
Typical High
$123.03
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
$16.22
Median
$16.22
Typical High
$16.22
Molina
Setting
Professional
Modifier
None
Typical Low
$6.92
Median
$6.92
Typical High
$15.85
United
Setting
Facility
Modifier
None
Typical Low
$12.59
Median
$15.14
Typical High
$15.85
United
Setting
Professional
Modifier
None
Typical Low
$5.25
Median
$7.59
Typical High
$13.49
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
$5.13
Median
$9.12
Typical High
$19.05
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$2.04
Median
$3.63
Typical High
$7.59
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$5.13
Median
$5.13
Typical High
$6.31
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.04
Median
$2.04
Typical High
$2.51

Where Illinois 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.

Illinois· 48th of 51

$9.77

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.