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Group A Strep Antigen Test, Laboratory Immunoassay

Delaware 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?

$10.96

Typical negotiated rate. In Delaware, October 2026.

Insurers have agreed to pay about $10.96 for this service. Most negotiated rates run $10.00 to $16.60.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

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 3 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $14 · 10th to 90th $11 to $50Professionalmedian $11 · 10th to 90th $8 to $23
$10$20$50facility $14professional $11

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
$13.80
Median
$13.80
Typical High
$13.80
Aetna
Setting
Professional
Modifier
None
Typical Low
$10.96
Median
$12.30
Typical High
$23.44
Cigna
Setting
Facility
Modifier
None
Typical Low
$10.96
Median
$10.96
Typical High
$50.12
Cigna
Setting
Professional
Modifier
None
Typical Low
$8.51
Median
$19.50
Typical High
$81.28
United
Setting
Professional
Modifier
None
Typical Low
$5.89
Median
$9.33
Typical High
$16.60

Where Delaware 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.

Delaware· 50th of 51

$10.96

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.