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Coccidioides (Valley Fever) Antibody Test

Illinois rates for HCPCS 86635

This blood test looks for antibodies against Coccidioides, a fungus found in soil in parts of the southwestern United States and other dry regions, that causes an illness commonly called Valley Fever. It's ordered when someone has a lingering cough, fever, or chest symptoms and has lived in or traveled through an area where the fungus is common. A positive result helps confirm the diagnosis so appropriate treatment can be started.

Rates data updated July 2026.

How much does Coccidioides (Valley Fever) Antibody Test cost?

$15.49

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $15.49 for this service. The price depends on where it is billed: about $9.77 from a physician practice, and about $26.30 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 7 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$9.77$8.91 to $13.49
FacilityA hospital or hospital-owned outpatient department$26.30$16.60 to $72.44

How much rates vary

Facilitymedian $26 · 10th to 90th $10 to $170Professionalmedian $10 · 10th to 90th $3 to $23
$5.0$10.0$20.0$50.0$100.0$200.0facility $26professional $10

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
$9.33
Median
$26.30
Typical High
$169.82
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$10.23
Typical High
$23.44
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$7.08
Typical High
$7.08
BCBS
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$29.51
Typical High
$117.49
BCBS
Setting
Professional
Modifier
Global
Typical Low
$3.47
Median
$7.94
Typical High
$8.91
Cigna
Setting
Facility
Modifier
Global
Typical Low
$12.88
Median
$26.30
Typical High
$52.48
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$12.59
Typical High
$20.42
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$12.59
Median
$22.39
Typical High
$151.36
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
$14.79
Median
$14.79
Typical High
$14.79
Molina
Setting
Professional
Modifier
Global
Typical Low
$6.31
Median
$6.31
Typical High
$6.31
United
Setting
Facility
Modifier
Global
Typical Low
$6.92
Median
$11.48
Typical High
$22.91
United
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$7.24
Typical High
$11.48

Where Illinois sits

The same service costs 3.7 times more in South Dakota than in Washington, DC. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Illinois $15.49 · 9th of 51
SD $31.62DC $8.51

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.