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Rapid Single-Step Immunoassay

Ohio 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?

$9.12

Typical negotiated rate. In Ohio, July 2026.

Insurers have agreed to pay about $9.12 for this service. The price depends on where it is billed: about $7.76 from a physician practice, and about $13.49 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 8 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$5.01 to $9.55
FacilityA hospital or hospital-owned outpatient department$13.49$9.55 to $21.38

How much rates vary

Facilitymedian $13 · 10th to 90th $8 to $23Professionalmedian $8 · 10th to 90th $4 to $21
$5$20$100$500$2Kfacility $13professional $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
$7.76
Median
$17.78
Typical High
$23.99
Aetna
Setting
Professional
Modifier
Global
Typical Low
$7.76
Median
$9.12
Typical High
$21.88
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$8.91
Median
$10.23
Typical High
$17.78
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$4.17
Median
$5.01
Typical High
$7.41
CareSource
Setting
Facility
Modifier
Global
Typical Low
$6.61
Median
$6.61
Typical High
$10.96
CareSource
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$12.88
Typical High
$12.88
Cigna
Setting
Facility
Modifier
Global
Typical Low
$6.31
Median
$12.59
Typical High
$39.81
Cigna
Setting
Professional
Modifier
Global
Typical Low
$4.47
Median
$8.32
Typical High
$16.22
Medical Mutual of Ohio
Setting
Facility
Modifier
Global
Typical Low
$4.90
Median
$12.02
Typical High
$33.11
Medical Mutual of Ohio
Setting
Professional
Modifier
Global
Typical Low
$4.47
Median
$7.94
Typical High
$15.85
Molina
Setting
Professional
Modifier
Global
Typical Low
$5.25
Median
$8.71
Typical High
$12.02
SummaCare
Setting
Professional
Modifier
Global
Typical Low
$6.31
Median
$10.00
Typical High
$19.05
United
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$9.55
Typical High
$14.45
United
Setting
Professional
Modifier
Global
Typical Low
$5.75
Median
$7.41
Typical High
$11.75

Where Ohio 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.

Ohio· 34th of 51

$9.12

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.