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Group A Strep Antigen Test, Laboratory Immunoassay

Louisiana 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?

$21.88

Typical negotiated rate. In Louisiana, October 2026.

Insurers have agreed to pay about $21.88 for this service. The price depends on where it is billed: about $14.13 from a physician practice, and about $42.66 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$14.13$7.94 to $18.62
FacilityA hospital or hospital-owned outpatient department$42.66$23.99 to $63.10

How much rates vary

Facilitymedian $43 · 10th to 90th $18 to $63Professionalmedian $14 · 10th to 90th $7 to $22
$10$20$50facility $43professional $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
$22.39
Typical High
$85.11
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$8.91
Median
$11.48
Typical High
$42.66
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$3.55
Median
$4.57
Typical High
$17.38
Aetna
Setting
Professional
Modifier
None
Typical Low
$15.85
Median
$19.95
Typical High
$30.20
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$8.91
Median
$10.23
Typical High
$10.96
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$3.55
Median
$4.07
Typical High
$4.37
Ambetter
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$16.98
Typical High
$16.98
BCBS Louisiana
Setting
Facility
Modifier
None
Typical Low
$17.38
Median
$30.90
Typical High
$48.98
BCBS Louisiana
Setting
Professional
Modifier
None
Typical Low
$12.59
Median
$18.62
Typical High
$18.62
Christus
Setting
Facility
Modifier
None
Typical Low
$63.10
Median
$63.10
Typical High
$63.10
Cigna
Setting
Facility
Modifier
None
Typical Low
$8.91
Median
$35.48
Typical High
$74.13
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.41
Median
$7.94
Typical High
$19.50
United
Setting
Facility
Modifier
None
Typical Low
$7.08
Median
$15.14
Typical High
$16.98
United
Setting
Professional
Modifier
None
Typical Low
$6.92
Median
$7.59
Typical High
$16.60

Where Louisiana 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.

Louisiana· 10th of 51

$21.88

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.