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West Nile Virus Antibody Test, IgM

Massachusetts 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?

$18.20

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $18.20 for this service. The price depends on where it is billed: about $16.98 from a physician practice, and about $41.69 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 9 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$16.98$15.14 to $23.44
FacilityA hospital or hospital-owned outpatient department$41.69$23.99 to $60.26

How much rates vary

Facilitymedian $42 · 10th to 90th $15 to $107Professionalmedian $17 · 10th to 90th $13 to $45
$10$50$200$1Kfacility $42professional $17

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
$16.98
Median
$38.90
Typical High
$128.82
Aetna
Setting
Professional
Modifier
Global
Typical Low
$13.49
Median
$15.14
Typical High
$64.57
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$15.49
Median
$23.99
Typical High
$79.43
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$16.98
Typical High
$40.74
BCBS
Setting
Facility
Modifier
Global
Typical Low
$33.11
Median
$41.69
Typical High
$60.26
BCBS
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$15.85
Typical High
$18.20
Cigna
Setting
Facility
Modifier
Global
Typical Low
$13.18
Median
$26.92
Typical High
$43.65
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.23
Median
$20.42
Typical High
$44.67
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$16.22
Median
$114.82
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$24.55
Median
$24.55
Typical High
$28.84
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$43.65
Health New England
Setting
Facility
Modifier
Global
Typical Low
$17.78
Median
$18.62
Typical High
$31.62
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$15.49
Median
$23.99
Typical High
$79.43
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$16.98
Typical High
$40.74
United
Setting
Facility
Modifier
Global
Typical Low
$9.55
Median
$16.98
Typical High
$24.55
United
Setting
Professional
Modifier
Global
Typical Low
$8.13
Median
$15.85
Typical High
$45.71

Where Massachusetts 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.

Massachusetts· 23rd of 51

$18.20

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.