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Giardia Stool Antigen Test

Connecticut rates for HCPCS 87329

This laboratory test checks a stool sample for antigens from Giardia lamblia, a parasite that can cause diarrhea and digestive symptoms after being picked up from contaminated water or food. It offers a faster and often more sensitive way to detect this parasite than examining the stool under a microscope.

Rates data updated July 2026.

How much does Giardia Stool Antigen Test cost?

$10.96

Typical negotiated rate. In Connecticut, July 2026.

Insurers have agreed to pay about $10.96 for this service. The price depends on where it is billed: about $10.72 from a physician practice, and about $21.38 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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 5 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$10.72$10.47 to $10.96
FacilityA hospital or hospital-owned outpatient department$21.38$16.22 to $31.62

How much rates vary

Facilitymedian $21 · 10th to 90th $12 to $40Professionalmedian $11 · 10th to 90th $6 to $13
$5.0$10.0$20.0$50.0$100.0facility $21professional $11

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$21.38
Typical High
$45.71
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$10.72
Typical High
$12.02
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$12.88
Median
$18.62
Typical High
$32.36
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$5.89
Median
$7.24
Typical High
$18.62
Cigna
Setting
Facility
Modifier
Global
Typical Low
$8.32
Median
$24.55
Typical High
$47.86
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8.13
Median
$13.49
Typical High
$18.62
ConnectiCare
Setting
Professional
Modifier
Global
Typical Low
$5.62
Median
$12.02
Typical High
$17.78
United
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$12.02
Typical High
$12.02
United
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$12.02
Typical High
$20.89

Where Connecticut sits

The same service costs 7.4 times more in West Virginia than in Washington, DC. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Connecticut $10.96 · 45th of 51
WV $66.07DC $8.91

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.