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West Nile Virus Antibody Test, IgM

Illinois rates for HCPCS 86788

This blood test looks for a type of antibody the immune system makes early during a West Nile virus infection. A positive result suggests a recent infection, since this particular antibody type tends to fade over time. It's ordered when someone has symptoms consistent with West Nile virus, such as fever and headache, especially after a mosquito bite in an area where the virus is present.

Rates data updated July 2026.

How much does West Nile Virus Antibody Test, IgM cost?

$17.38

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $17.38 for this service. The price depends on where it is billed: about $13.18 from a physician practice, and about $33.88 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$13.18$11.75 to $16.98
FacilityA hospital or hospital-owned outpatient department$33.88$21.38 to $50.12

How much rates vary

Facilitymedian $34 · 10th to 90th $17 to $100Professionalmedian $13 · 10th to 90th $3 to $35
$5$20$100$500$2Kfacility $34professional $13

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. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$16.60
Median
$33.88
Typical High
$100.00
Aetna
Setting
Professional
Modifier
Global
Typical Low
$13.18
Median
$14.45
Typical High
$34.67
BCBS
Setting
Facility
Modifier
Global
Typical Low
$22.39
Median
$45.71
Typical High
$173.78
BCBS
Setting
Professional
Modifier
Global
Typical Low
$3.47
Median
$11.75
Typical High
$12.88
Cigna
Setting
Facility
Modifier
Global
Typical Low
$18.62
Median
$38.90
Typical High
$77.62
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$19.50
Typical High
$30.90
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$17.78
Median
$61.66
Typical High
$162.18
Hally Health
Setting
Facility
Modifier
Global
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$21.88
Median
$21.88
Typical High
$21.88
Molina
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$9.33
Typical High
$9.33
United
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$16.98
Typical High
$33.88
United
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$10.72
Typical High
$16.98

Where Illinois sits

The same service costs 5.0 times more in South Dakota than in Washington, DC. 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· 29th of 51

$17.38

SD $63.10DC $12.59

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.