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Rapid Single-Step Immunoassay

Arizona 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?

$8.13

Typical negotiated rate. In Arizona, July 2026.

Insurers have agreed to pay about $8.13 for this service. The price depends on where it is billed: about $7.76 from a physician practice, and about $17.38 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 5 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$7.76$6.46 to $8.91
FacilityA hospital or hospital-owned outpatient department$17.38$10.47 to $33.88

How much rates vary

Facilitymedian $17 · 10th to 90th $7 to $42Professionalmedian $8 · 10th to 90th $5 to $39
$5$10$20$50facility $17professional $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
$11.48
Median
$19.05
Typical High
$41.69
Aetna
Setting
Professional
Modifier
Global
Typical Low
$4.47
Median
$7.76
Typical High
$63.10
BCBS
Setting
Facility
Modifier
Global
Typical Low
$5.75
Median
$23.99
Typical High
$45.71
BCBS
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$8.13
Typical High
$38.90
Cigna
Setting
Facility
Modifier
Global
Typical Low
$6.17
Median
$9.33
Typical High
$31.62
Cigna
Setting
Professional
Modifier
Global
Typical Low
$5.62
Median
$8.32
Typical High
$14.45
Medica
Setting
Facility
Modifier
Global
Typical Low
$7.24
Median
$10.47
Typical High
$72.44
Medica
Setting
Professional
Modifier
Global
Typical Low
$5.75
Median
$7.08
Typical High
$9.55
United
Setting
Facility
Modifier
Global
Typical Low
$6.31
Median
$9.33
Typical High
$10.72
United
Setting
Professional
Modifier
Global
Typical Low
$5.75
Median
$7.08
Typical High
$9.55

Where Arizona 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.

Arizona· 39th of 51

$8.13

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.