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Gel Diffusion Test For A Specific Substance

New Jersey 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?

$14.45

Typical negotiated rate. In New Jersey, July 2026.

Insurers have agreed to pay about $14.45 for this service. The price depends on where it is billed: about $10.23 from a physician practice, and about $38.02 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 6 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$10.23$8.91 to $14.13
FacilityA hospital or hospital-owned outpatient department$38.02$21.88 to $77.62

How much rates vary

Facilitymedian $38 · 10th to 90th $14 to $166Professionalmedian $10 · 10th to 90th $8 to $23
$10$100$1K$10Kfacility $38professional $10

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
$15.49
Median
$38.02
Typical High
$91.20
Aetna
Setting
Professional
Modifier
Global
Typical Low
$7.94
Median
$10.23
Typical High
$23.44
AmeriHealth
Setting
Facility
Modifier
Global
Typical Low
$35.48
Median
$128.82
Typical High
$1,258.93
Cigna
Setting
Facility
Modifier
Global
Typical Low
$13.80
Median
$26.92
Typical High
$54.95
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$11.48
Typical High
$33.88
Emblem Health
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$6.03
Typical High
$13.49
Horizon BCBS
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$9,549.93
Typical High
$23,988.33
Horizon BCBS
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$10.47
Typical High
$13.49
United
Setting
Facility
Modifier
Global
Typical Low
$5.62
Median
$12.02
Typical High
$26.30
United
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$7.24
Typical High
$17.38

Where New Jersey 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.

New Jersey· 14th of 51

$14.45

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.