go back

Immunodiffusion Test

Rhode Island 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?

$14.79

Typical negotiated rate. In Rhode Island, October 2026.

Insurers have agreed to pay about $14.79 for this service. The price depends on where it is billed: about $12.59 from a physician practice, and about $17.38 from a hospital or other facility.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

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 4 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$12.59$10.23 to $19.95
FacilityA hospital or hospital-owned outpatient department$17.38$16.98 to $28.18

How much rates vary

Facilitymedian $17 · 10th to 90th $16 to $50Professionalmedian $13 · 10th to 90th $8 to $24
$10$20$50facility $17professional $13

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
$12.59
Median
$14.79
Typical High
$14.79
BCBS Rhode Island
Setting
Facility
Modifier
None
Typical Low
$16.22
Median
$17.38
Typical High
$28.18
BCBS Rhode Island
Setting
Professional
Modifier
None
Typical Low
$7.94
Median
$10.47
Typical High
$28.18
Cigna
Setting
Facility
Modifier
None
Typical Low
$13.18
Median
$33.88
Typical High
$58.88
Cigna
Setting
Professional
Modifier
None
Typical Low
$10.23
Median
$16.22
Typical High
$21.38
United
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$16.98
Typical High
$16.98
United
Setting
Professional
Modifier
None
Typical Low
$5.89
Median
$10.47
Typical High
$23.44

Where Rhode Island 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.

Rhode Island· 25th of 51

$14.79

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.