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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 October 2026.

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

$19.95

Typical negotiated rate. In Mississippi, October 2026.

Insurers have agreed to pay about $19.95 for this service. The price depends on where it is billed: about $14.13 from a physician practice, and about $21.38 from a hospital or other facility.

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.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$14.13$8.51 to $19.95
FacilityA hospital or hospital-owned outpatient department$21.38$21.38 to $21.38

How much rates vary

Facilitymedian $21 · 10th to 90th $15 to $30Professionalmedian $14 · 10th to 90th $8 to $30
$10$20facility $21professional $14

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$30.20
Typical High
$33.88
Aetna
Setting
Professional
Modifier
None
Typical Low
$13.18
Median
$30.20
Typical High
$33.88
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$6.61
Median
$15.14
Typical High
$16.98
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.63
Median
$6.03
Typical High
$6.76
Ambetter
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$8.32
Typical High
$8.91
BCBS Mississippi
Setting
Facility
Modifier
None
Typical Low
$21.38
Median
$21.38
Typical High
$21.38
BCBS Mississippi
Setting
Professional
Modifier
None
Typical Low
$19.95
Median
$19.95
Typical High
$19.95
Cigna
Setting
Facility
Modifier
None
Typical Low
$10.96
Median
$14.13
Typical High
$23.99
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.59
Median
$12.59
Typical High
$23.99
United
Setting
Facility
Modifier
None
Typical Low
$15.14
Median
$15.14
Typical High
$19.95
United
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$8.71
Typical High
$28.84
1 more rate with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Ambetter
Setting
Professional
Modifier
QW · Waived lab test
Typical Low
$7.08
Median
$7.94
Typical High
$11.75

Where Mississippi sits

The same service costs 3.6 times more in Alaska than in Alabama. 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

$19.95

AK $38.02AL $10.47

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.