go back

Gel Diffusion Test For A Specific Substance

Arkansas 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?

$15.49

Typical negotiated rate. In Arkansas, July 2026.

Insurers have agreed to pay about $15.49 for this service. The price depends on where it is billed: about $9.77 from a physician practice, and about $18.62 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$9.77$9.33 to $18.62
FacilityA hospital or hospital-owned outpatient department$18.62$13.80 to $23.99

How much rates vary

Facilitymedian $19 · 10th to 90th $14 to $72Professionalmedian $10 · 10th to 90th $9 to $24
$10$20$50$100$200facility $19professional $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
$18.62
Median
$18.62
Typical High
$239.88
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$9.77
Typical High
$23.99
BCBS
Setting
Facility
Modifier
Global
Typical Low
$13.80
Median
$13.80
Typical High
$18.62
BCBS
Setting
Professional
Modifier
Global
Typical Low
$13.49
Median
$19.95
Typical High
$19.95
Cigna
Setting
Facility
Modifier
Global
Typical Low
$9.55
Median
$15.85
Typical High
$31.62
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$13.49
Typical High
$18.62
United
Setting
Facility
Modifier
Global
Typical Low
$10.72
Median
$12.02
Typical High
$30.20
United
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$7.94
Typical High
$19.05

Where Arkansas 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.

Arkansas· 11th of 51

$15.49

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.