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Rapid Single-Step Immunoassay

Delaware 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 Delaware, July 2026.

Insurers have agreed to pay about $7.94 for this service. Most negotiated rates run $7.76 to $13.49.

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 3 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $11 · 10th to 90th $11 to $11Professionalmedian $8 · 10th to 90th $8 to $29
$10$20facility $11professional $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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$10.96
Median
$10.96
Typical High
$10.96
Aetna
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$7.94
Typical High
$28.84
Cigna
Setting
Facility
Modifier
Global
Typical Low
$6.31
Median
$6.31
Typical High
$6.31
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$7.76
Typical High
$15.85
United
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$9.55
Typical High
$11.75

Where Delaware 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.

Delaware· 43rd 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.