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Gel Diffusion Test For A Specific Substance

Vermont 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?

$20.89

Typical negotiated rate. In Vermont, July 2026.

Insurers have agreed to pay about $20.89 for this service. The price depends on where it is billed: about $20.89 from a physician practice, and about $93.33 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 5 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$20.89$20.42 to $20.89
FacilityA hospital or hospital-owned outpatient department$93.33$12.02 to $186

How much rates vary

Facilitymedian $93 · 10th to 90th $1 to $204Professionalmedian $21 · 10th to 90th $10 to $21
$2$5$10$20$50$100$200facility $93professional $21

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. 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
Global
Typical Low
$20.89
Median
$20.89
Typical High
$20.89
BCBS
Setting
Facility
Modifier
Global
Typical Low
$1.12
Median
$93.33
Typical High
$213.80
Cigna
Setting
Facility
Modifier
Global
Typical Low
$19.95
Median
$114.82
Typical High
$114.82
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8.51
Median
$16.98
Typical High
$20.42
MVP Health Care
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$12.02
Typical High
$12.02
MVP Health Care
Setting
Professional
Modifier
Global
Typical Low
$9.55
Median
$9.55
Typical High
$9.55
United
Setting
Facility
Modifier
Global
Typical Low
$4.17
Median
$4.17
Typical High
$4.17
United
Setting
Professional
Modifier
Global
Typical Low
$5.50
Median
$14.79
Typical High
$32.36

Where Vermont 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.

Vermont· 3rd of 51

$20.89

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.