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Group A Strep Antigen Test, Laboratory Immunoassay

Kentucky 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?

$13.49

Typical negotiated rate. In Kentucky, October 2026.

Insurers have agreed to pay about $13.49 for this service. The price depends on where it is billed: about $12.88 from a physician practice, and about $16.98 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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$12.88$7.94 to $15.85
FacilityA hospital or hospital-owned outpatient department$16.98$13.80 to $23.44

How much rates vary

Facilitymedian $17 · 10th to 90th $13 to $50Professionalmedian $13 · 10th to 90th $7 to $18
$10$20$50facility $17professional $13

Distribution of negotiated rates across all payers (price axis is log-scale). 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
None
Typical Low
$13.49
Median
$14.13
Typical High
$14.13
Aetna
Setting
Professional
Modifier
None
Typical Low
$12.88
Median
$14.13
Typical High
$18.20
Ambetter
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$16.98
Typical High
$16.98
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$10.47
Median
$16.98
Typical High
$17.78
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$6.76
Median
$11.22
Typical High
$16.22
CareSource
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$19.95
Typical High
$23.44
CareSource
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$19.50
Typical High
$27.54
Cigna
Setting
Facility
Modifier
None
Typical Low
$14.45
Median
$50.12
Typical High
$50.12
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.76
Median
$81.28
Typical High
$81.28
United
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$9.77
Typical High
$16.98
2 more rates 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
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$6.76
Median
$7.08
Typical High
$8.32
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.69
Median
$2.82
Typical High
$3.39

Where Kentucky 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.

Kentucky· 42nd of 51

$13.49

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.