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Group A Strep Antigen Test, Laboratory Immunoassay

Mississippi rates for HCPCS 87430

Checks a throat swab for proteins from group A streptococcus, the bacterium behind strep throat, using an instrument-read laboratory immunoassay. It is the laboratory version of the test rather than the strip read by eye during an office visit. Results generally come back the same day, so a decision about antibiotics need not wait for a culture to grow.

Rates data updated July 2026.

How much does Group A Strep Antigen Test, Laboratory Immunoassay cost?

$20.42

Typical negotiated rate. In Mississippi, July 2026.

Insurers have agreed to pay about $20.42 for this service. The price depends on where it is billed: about $19.50 from a physician practice, and about $30.20 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$19.50$13.18 to $30.20
FacilityA hospital or hospital-owned outpatient department$30.20$17.78 to $33.88

How much rates vary

Facilitymedian $30 · 10th to 90th $15 to $135Professionalmedian $19 · 10th to 90th $11 to $38
$10$20$50$100$200facility $30professional $19

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
$17.78
Median
$32.36
Typical High
$134.90
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$19.50
Typical High
$38.02
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$8.32
Median
$8.91
Typical High
$26.92
BCBS
Setting
Facility
Modifier
Global
Typical Low
$21.38
Median
$21.38
Typical High
$21.38
BCBS
Setting
Professional
Modifier
Global
Typical Low
$19.95
Median
$19.95
Typical High
$19.95
Cigna
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$16.98
Typical High
$23.99
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$12.88
Typical High
$27.54
United
Setting
Facility
Modifier
Global
Typical Low
$14.79
Median
$15.14
Typical High
$16.98
United
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$9.12
Typical High
$26.92

Where Mississippi sits

The same service costs 4.5 times more in Wyoming than in Connecticut. 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.

Mississippi· 12th of 51

$20.42

WY $48.98CT $10.96

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.