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Stool Test for Parasitic Infection Antigen

Maryland rates for HCPCS 87328

This laboratory test checks a stool sample for a specific antigen produced by a parasite that can cause intestinal infection and diarrhea. It offers a faster result than culturing the organism directly, helping guide prompt treatment.

Rates data updated October 2026.

How much does Stool Test for Parasitic Infection Antigen cost?

$10.47

Typical negotiated rate. In Maryland, October 2026.

Insurers have agreed to pay about $10.47 for this service. Most negotiated rates run $8.91 to $10.96.

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.

How much rates vary

Facilitymedian $13 · 10th to 90th $8 to $17Professionalmedian $10 · 10th to 90th $7 to $14
$10$20facility $13professional $10

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
$10.23
Median
$12.88
Typical High
$17.38
Aetna
Setting
Professional
Modifier
None
Typical Low
$10.23
Median
$10.47
Typical High
$11.48
CareFirst
Setting
Professional
Modifier
None
Typical Low
$10.00
Median
$10.96
Typical High
$10.96
Cigna
Setting
Facility
Modifier
None
Typical Low
$7.24
Median
$9.12
Typical High
$17.78
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.24
Median
$13.18
Typical High
$33.88
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$13.80
Median
$15.85
Typical High
$23.99
United
Setting
Professional
Modifier
None
Typical Low
$6.17
Median
$7.08
Typical High
$11.48
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$5.37
Median
$11.75
Typical High
$11.75
2 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
$5.13
Median
$5.25
Typical High
$5.25
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.04
Median
$2.04
Typical High
$2.04

Where Maryland sits

The same service costs 3.7 times more in Kansas than in New Jersey. 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.

Maryland· 49th of 51

$10.47

KS $36.31NJ $9.77

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.