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Chemistry Test For A Specific Substance

Tennessee rates for HCPCS 84285

A laboratory chemistry test that measures how much of one particular substance is present in a sample sent to the lab. It is ordered when the amount of that substance is expected to answer a specific question about a person's health, and the result is read together with the rest of the picture.

Rates data updated July 2026.

How much does Chemistry Test For A Specific Substance cost?

$19.95

Typical negotiated rate. In Tennessee, July 2026.

Insurers have agreed to pay about $19.95 for this service. The price depends on where it is billed: about $19.05 from a physician practice, and about $38.90 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$19.05$19.05 to $19.95
FacilityA hospital or hospital-owned outpatient department$38.90$21.38 to $91.20

How much rates vary

Facilitymedian $39 · 10th to 90th $19 to $100Professionalmedian $19 · 10th to 90th $17 to $30
$5.0$10.0$20.0$50.0$100.0$200.0facility $39professional $19

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
$19.05
Median
$38.90
Typical High
$100.00
Aetna
Setting
Professional
Modifier
Global
Typical Low
$19.05
Median
$19.05
Typical High
$23.99
BCBS
Setting
Professional
Modifier
Global
Typical Low
$25.12
Median
$32.36
Typical High
$32.36
Cigna
Setting
Facility
Modifier
Global
Typical Low
$17.38
Median
$53.70
Typical High
$97.72
Cigna
Setting
Professional
Modifier
Global
Typical Low
$11.48
Median
$18.20
Typical High
$38.02
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$120.23
Median
$120.23
Typical High
$120.23
United
Setting
Facility
Modifier
Global
Typical Low
$10.47
Median
$23.44
Typical High
$25.12
United
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$16.22
Typical High
$33.11

Where Tennessee sits

The same service costs 2.5 times more in South Dakota than in Maryland. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Tennessee $19.95 · 47th of 51
SD $47.86MD $19.05

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.