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Rapid Single-Step Immunoassay

West Virginia rates for HCPCS 83518

A quick laboratory test that uses antibodies fixed on a strip or cartridge to detect a substance in a sample. The result appears in one step, as a line or color change, giving a yes-or-no or rough-level answer rather than an exact measurement. What is being looked for depends on what the doctor ordered.

Rates data updated July 2026.

How much does Rapid Single-Step Immunoassay cost?

$7.94

Typical negotiated rate. In West Virginia, July 2026.

Insurers have agreed to pay about $7.94 for this service. The price depends on where it is billed: about $7.94 from a physician practice, and about $12.02 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 4 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$7.94$7.59 to $20.89
FacilityA hospital or hospital-owned outpatient department$12.02$7.94 to $14.45

How much rates vary

Facilitymedian $12 · 10th to 90th $8 to $29Professionalmedian $8 · 10th to 90th $7 to $21
$5$10$20$50facility $12professional $8

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
$7.94
Median
$12.02
Typical High
$14.45
Aetna
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$7.94
Typical High
$21.38
CareSource
Setting
Facility
Modifier
Global
Typical Low
$12.88
Median
$12.88
Typical High
$12.88
CareSource
Setting
Professional
Modifier
Global
Typical Low
$11.48
Median
$11.48
Typical High
$11.48
Cigna
Setting
Facility
Modifier
Global
Typical Low
$7.94
Median
$15.49
Typical High
$28.84
Cigna
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$16.22
Typical High
$54.95
United
Setting
Facility
Modifier
Global
Typical Low
$4.07
Median
$4.07
Typical High
$10.96
United
Setting
Professional
Modifier
Global
Typical Low
$4.37
Median
$7.08
Typical High
$11.75

Where West Virginia sits

The same service costs 2.6 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.

West Virginia· 44th of 51

$7.94

SD $18.62DC $7.24

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.