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B Cell Count Test

Illinois rates for HCPCS 86355

This blood test counts the number of B cells, a type of white blood cell responsible for producing antibodies. It helps evaluate how well a person's immune system is functioning, particularly when there's concern about an immune deficiency or an unexplained pattern of infections. Low counts can point toward a problem with antibody production, while other patterns can help guide further immune testing.

Rates data updated July 2026.

How much does B Cell Count Test cost?

$38.02

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $38.02 for this service. The price depends on where it is billed: about $30.90 from a physician practice, and about $75.86 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$30.90$27.54 to $38.02
FacilityA hospital or hospital-owned outpatient department$75.86$38.90 to $115

How much rates vary

Facilitymedian $76 · 10th to 90th $31 to $204Professionalmedian $31 · 10th to 90th $3 to $78
$5$10$20$50$100$200$500facility $76professional $31

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
$26.30
Median
$74.13
Typical High
$204.17
Aetna
Setting
Professional
Modifier
Global
Typical Low
$28.84
Median
$33.88
Typical High
$77.62
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$22.91
Median
$22.91
Typical High
$51.29
BCBS
Setting
Facility
Modifier
Global
Typical Low
$50.12
Median
$102.33
Typical High
$389.05
BCBS
Setting
Professional
Modifier
Global
Typical Low
$3.47
Median
$26.30
Typical High
$28.84
Cigna
Setting
Facility
Modifier
Global
Typical Low
$42.66
Median
$87.10
Typical High
$173.78
Cigna
Setting
Professional
Modifier
Global
Typical Low
$19.50
Median
$43.65
Typical High
$69.18
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$39.81
Median
$95.50
Typical High
$257.04
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
$48.98
Median
$48.98
Typical High
$48.98
Molina
Setting
Professional
Modifier
Global
Typical Low
$26.30
Median
$26.30
Typical High
$26.30
United
Setting
Facility
Modifier
Global
Typical Low
$25.70
Median
$38.02
Typical High
$75.86
United
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$22.39
Typical High
$38.02

Where Illinois sits

The same service costs 3.5 times more in South Dakota than in Delaware. 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· 28th of 51

$38.02

SD $112DE $31.62

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.