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Immunodiffusion Test

Maryland rates for HCPCS 86329

A laboratory method in which a sample and a matching reagent spread toward each other through a soft gel and form a visible line where they meet, showing that a specific antibody or protein is present. It is reported for substances that do not have a standard named test of their own. It gives a present-or-absent style answer rather than a precise measured amount.

Rates data updated October 2026.

How much does Immunodiffusion Test 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 $9.12 to $11.22.

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 $10 · 10th to 90th $7 to $30Professionalmedian $10 · 10th to 90th $6 to $14
$5$10$20facility $10professional $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
Professional
Modifier
None
Typical Low
$10.47
Median
$10.47
Typical High
$11.22
CareFirst
Setting
Professional
Modifier
None
Typical Low
$10.23
Median
$11.22
Typical High
$11.22
Cigna
Setting
Facility
Modifier
None
Typical Low
$7.41
Median
$9.77
Typical High
$18.20
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.41
Median
$13.80
Typical High
$34.67
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$13.49
Median
$16.22
Typical High
$20.89
United
Setting
Facility
Modifier
None
Typical Low
$30.20
Median
$30.20
Typical High
$30.20
United
Setting
Professional
Modifier
None
Typical Low
$5.89
Median
$7.08
Typical High
$10.47
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$5.50
Median
$13.80
Typical High
$13.80
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
$5.25
Median
$5.25
Typical High
$5.25
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.09
Median
$2.09
Typical High
$2.09

Where Maryland sits

The same service costs 3.2 times more in Alaska than in Kentucky. 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· 50th of 51

$10.47

AK $31.62KY $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.