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Group A Strep Antigen Test, Laboratory Immunoassay

Colorado 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?

$16.98

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $16.98 for this service. The price depends on where it is billed: about $11.75 from a physician practice, and about $48.98 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 7 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$11.75$10.00 to $16.98
FacilityA hospital or hospital-owned outpatient department$48.98$29.51 to $58.88

How much rates vary

Facilitymedian $49 · 10th to 90th $13 to $78Professionalmedian $12 · 10th to 90th $7 to $30
$10$20$50$100facility $49professional $12

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
$12.88
Median
$29.51
Typical High
$77.62
Aetna
Setting
Professional
Modifier
None
Typical Low
$10.96
Median
$12.88
Typical High
$25.12
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$50.12
Typical High
$77.62
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$10.00
Median
$11.48
Typical High
$34.67
Cigna
Setting
Facility
Modifier
None
Typical Low
$9.77
Median
$20.42
Typical High
$51.29
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.94
Median
$9.33
Typical High
$19.50
Denver HMP
Setting
Facility
Modifier
None
Typical Low
$12.88
Median
$16.60
Typical High
$24.55
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$13.49
Median
$24.55
Typical High
$51.29
Select Health
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$30.90
Typical High
$35.48
Select Health
Setting
Professional
Modifier
None
Typical Low
$11.75
Median
$11.75
Typical High
$16.98
United
Setting
Facility
Modifier
None
Typical Low
$19.95
Median
$19.95
Typical High
$19.95
United
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$7.08
Typical High
$13.49
3 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
$6.17
Median
$6.46
Typical High
$8.32
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.51
Median
$2.57
Typical High
$3.39
Kaiser Permanente
Setting
Professional
Modifier
QW · Waived lab test
Typical Low
$13.49
Median
$23.99
Typical High
$35.48

Where Colorado 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.

Colorado· 22nd of 51

$16.98

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.