go back

White Cell Chemotaxis Assay

Colorado rates for HCPCS 86155

A laboratory test that measures how well white blood cells move towards a chemical signal, the way they normally travel to the site of an infection. Sluggish movement points to a defect in the immune system's ability to bring defending cells where they are needed.

Rates data updated July 2026.

How much does White Cell Chemotaxis Assay cost?

$15.14

Typical negotiated rate. In Colorado, July 2026.

Insurers have agreed to pay about $15.14 for this service. The price depends on where it is billed: about $12.30 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 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$12.30$11.75 to $14.79
FacilityA hospital or hospital-owned outpatient department$41.69$21.38 to $66.07

How much rates vary

Facilitymedian $42 · 10th to 90th $12 to $81Professionalmedian $12 · 10th to 90th $7 to $15
$10$20$50$100facility $42professional $12

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
$10.00
Median
$34.67
Typical High
$75.86
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$12.30
Typical High
$15.14
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$19.95
Median
$47.86
Typical High
$81.28
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$7.94
Typical High
$12.30
Cigna
Setting
Facility
Modifier
Global
Typical Low
$9.12
Median
$11.22
Typical High
$41.69
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8.32
Median
$10.47
Typical High
$19.05
Denver HMP
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$17.38
Typical High
$33.11
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$22.91
Median
$83.18
Typical High
$83.18
Select Health
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$29.51
Typical High
$33.88
Select Health
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$11.22
Typical High
$15.85
United
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$15.85
Typical High
$23.99
United
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$9.33
Typical High
$15.14

Where Colorado sits

The same service costs 2.4 times more in Hawaii than in Maryland. 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.

Colorado· 33rd of 51

$15.14

HI $28.84MD $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.