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West Nile Virus Antibody Test, IgM

Louisiana 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 October 2026.

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

$17.78

Typical negotiated rate. In Louisiana, October 2026.

Insurers have agreed to pay about $17.78 for this service. The price depends on where it is billed: about $14.13 from a physician practice, and about $21.38 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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$14.13$9.55 to $18.62
FacilityA hospital or hospital-owned outpatient department$21.38$16.60 to $37.15

How much rates vary

Facilitymedian $21 · 10th to 90th $17 to $55Professionalmedian $14 · 10th to 90th $7 to $22
$10$20$50$100facility $21professional $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
$17.78
Median
$22.39
Typical High
$87.10
Aetna
Setting
Professional
Modifier
None
Typical Low
$15.49
Median
$19.95
Typical High
$21.88
BCBS Louisiana
Setting
Facility
Modifier
None
Typical Low
$20.89
Median
$33.88
Typical High
$56.23
BCBS Louisiana
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$18.62
Typical High
$25.12
Christus
Setting
Facility
Modifier
None
Typical Low
$16.60
Median
$16.60
Typical High
$16.60
Cigna
Setting
Facility
Modifier
None
Typical Low
$18.20
Median
$36.31
Typical High
$102.33
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.94
Median
$11.22
Typical High
$19.50
United
Setting
Facility
Modifier
None
Typical Low
$7.08
Median
$15.14
Typical High
$16.98
United
Setting
Professional
Modifier
None
Typical Low
$6.76
Median
$9.55
Typical High
$22.91

Where Louisiana sits

The same service costs 3.2 times more in Alaska than in New York. 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.

Louisiana· 20th of 51

$17.78

AK $38.02NY $12.02

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.