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Gel Diffusion Test For A Specific Substance

Maine 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?

$12.02

Typical negotiated rate. In Maine, July 2026.

Insurers have agreed to pay about $12.02 for this service. The price depends on where it is billed: about $12.02 from a physician practice, and about $19.50 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$12.02$9.77 to $14.13
FacilityA hospital or hospital-owned outpatient department$19.50$12.02 to $53.70

How much rates vary

Facilitymedian $19 · 10th to 90th $12 to $112Professionalmedian $12 · 10th to 90th $7 to $15
$5$10$20$50$100facility $19professional $12

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
$19.50
Typical High
$53.70
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$9.77
Typical High
$14.13
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$13.80
Median
$112.20
Typical High
$120.23
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$6.92
Typical High
$15.49
Cigna
Setting
Facility
Modifier
Global
Typical Low
$14.13
Median
$16.98
Typical High
$26.92
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$12.02
Typical High
$16.98
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$12.02
Typical High
$14.45
Martin's Point
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$12.02
Typical High
$53.70
Martin's Point
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$12.02
Typical High
$16.60
United
Setting
Facility
Modifier
Global
Typical Low
$41.69
Median
$41.69
Typical High
$41.69
United
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$12.02
Typical High
$24.55

Where Maine 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.

Maine· 32nd of 51

$12.02

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.