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Chemistry Test For A Specific Substance

Arizona 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?

$20.42

Typical negotiated rate. In Arizona, July 2026.

Insurers have agreed to pay about $20.42 for this service. The price depends on where it is billed: about $20.42 from a physician practice, and about $47.86 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$20.42$16.98 to $20.42
FacilityA hospital or hospital-owned outpatient department$47.86$26.92 to $89.13

How much rates vary

Facilitymedian $48 · 10th to 90th $19 to $110Professionalmedian $20 · 10th to 90th $14 to $166
$5.0$10.0$20.0$50.0$100.0facility $48professional $20

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
$30.20
Median
$51.29
Typical High
$109.65
Aetna
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$20.42
Typical High
$165.96
BCBS
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$63.10
Typical High
$117.49
BCBS
Setting
Professional
Modifier
Global
Typical Low
$19.50
Median
$21.38
Typical High
$102.33
Cigna
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$24.55
Typical High
$81.28
Cigna
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$22.39
Typical High
$38.02
Medica
Setting
Facility
Modifier
Global
Typical Low
$19.05
Median
$21.38
Typical High
$120.23
Medica
Setting
Professional
Modifier
Global
Typical Low
$10.47
Median
$13.80
Typical High
$19.05
United
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$25.12
Typical High
$29.51
United
Setting
Professional
Modifier
Global
Typical Low
$10.47
Median
$13.80
Typical High
$32.36

Where Arizona 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.

Arizona $20.42 · 46th 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.