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Chemistry Test For A Specific Substance

Maryland 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?

$19.05

Typical negotiated rate. In Maryland, July 2026.

Insurers have agreed to pay about $19.05 for this service. Most negotiated rates run $16.98 to $30.20.

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.

How much rates vary

Facilitymedian $16 · 10th to 90th $10 to $32Professionalmedian $19 · 10th to 90th $14 to $91
$5.0$10.0$20.0$50.0$100.0facility $16professional $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. 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
$16.60
Median
$19.05
Typical High
$91.20
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$5.75
Median
$19.95
Typical High
$22.91
Cigna
Setting
Facility
Modifier
Global
Typical Low
$13.49
Median
$16.60
Typical High
$32.36
Cigna
Setting
Professional
Modifier
Global
Typical Low
$13.49
Median
$25.12
Typical High
$61.66
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$25.12
Median
$30.20
Typical High
$45.71
United
Setting
Facility
Modifier
Global
Typical Low
$3.16
Median
$10.47
Typical High
$19.05
United
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$13.80
Typical High
$23.99
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$17.38
Typical High
$38.02

Where Maryland 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.

Maryland $19.05 · 51st 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.