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Gel Diffusion Test For A Specific Substance

Mississippi rates for HCPCS 86331

A laboratory test in which the sample and a matching testing solution are placed in separate wells cut into a gel and left to spread slowly toward each other. If the substance being looked for is present, a visible line forms in the gel where the two meet. The result is a present or absent answer, reported once for each substance the laboratory checks for.

Rates data updated July 2026.

How much does Gel Diffusion Test For A Specific Substance cost?

$13.80

Typical negotiated rate. In Mississippi, July 2026.

Insurers have agreed to pay about $13.80 for this service. The price depends on where it is billed: about $12.88 from a physician practice, and about $20.42 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 4 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$12.88$9.55 to $21.38
FacilityA hospital or hospital-owned outpatient department$20.42$12.02 to $21.38

How much rates vary

Facilitymedian $20 · 10th to 90th $11 to $21Professionalmedian $13 · 10th to 90th $9 to $25
$10$20facility $20professional $13

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
$24.55
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$13.80
Typical High
$24.55
BCBS
Setting
Facility
Modifier
Global
Typical Low
$20.42
Median
$20.42
Typical High
$20.42
BCBS
Setting
Professional
Modifier
Global
Typical Low
$17.78
Median
$17.78
Typical High
$17.78
Cigna
Setting
Facility
Modifier
Global
Typical Low
$8.13
Median
$13.18
Typical High
$23.99
Cigna
Setting
Professional
Modifier
Global
Typical Low
$5.50
Median
$12.88
Typical High
$24.55
United
Setting
Facility
Modifier
Global
Typical Low
$10.72
Median
$12.02
Typical High
$16.22
United
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$8.51
Typical High
$24.55

Where Mississippi sits

The same service costs 2.6 times more in South Dakota than in Washington, DC. 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.

Mississippi· 24th of 51

$13.80

SD $22.91DC $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.