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Group A Strep Antigen Test, Laboratory Immunoassay

Idaho 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?

$28.18

Typical negotiated rate. In Idaho, October 2026.

Insurers have agreed to pay about $28.18 for this service. The price depends on where it is billed: about $17.78 from a physician practice, and about $38.02 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 8 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$17.78$14.45 to $28.18
FacilityA hospital or hospital-owned outpatient department$38.02$25.12 to $60.26

How much rates vary

Facilitymedian $38 · 10th to 90th $17 to $71Professionalmedian $18 · 10th to 90th $7 to $33
$10$20$50$100facility $38professional $18

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
$30.20
Median
$38.90
Typical High
$48.98
Aetna
Setting
Professional
Modifier
None
Typical Low
$11.22
Median
$19.50
Typical High
$33.11
BCBS Idaho
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$41.69
Typical High
$70.79
BCBS Idaho
Setting
Professional
Modifier
None
Typical Low
$14.45
Median
$16.60
Typical High
$17.38
Cigna
Setting
Facility
Modifier
None
Typical Low
$13.18
Median
$34.67
Typical High
$66.07
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.24
Median
$12.59
Typical High
$23.99
Moda Health
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$48.98
Typical High
$114.82
Moda Health
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$17.78
Typical High
$33.11
MountainHealth Co-op
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$25.12
Typical High
$31.62
MountainHealth Co-op
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$28.18
Typical High
$31.62
Regence BlueShield
Setting
Facility
Modifier
None
Typical Low
$25.12
Median
$38.02
Typical High
$60.26
Regence BlueShield
Setting
Professional
Modifier
None
Typical Low
$13.49
Median
$14.45
Typical High
$14.45
Select Health
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$16.98
Typical High
$34.67
Select Health
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$16.98
Typical High
$23.99
United
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$7.08
Typical High
$25.70

Where Idaho 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.

Idaho· 3rd of 51

$28.18

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.