go back

Chemistry Test For A Specific Substance

Connecticut 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 October 2026.

How much does Chemistry Test For A Specific Substance cost?

$23.99

Typical negotiated rate. In Connecticut, October 2026.

Insurers have agreed to pay about $23.99 for this service. The price depends on where it is billed: about $16.98 from a physician practice, and about $33.88 from a hospital or other facility.

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.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$16.98$12.88 to $25.70
FacilityA hospital or hospital-owned outpatient department$33.88$27.54 to $52.48

How much rates vary

Facilitymedian $34 · 10th to 90th $25 to $66Professionalmedian $17 · 10th to 90th $12 to $35
$10$20$50$100facility $34professional $17

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
None
Typical Low
$17.38
Median
$21.38
Typical High
$21.38
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$24.55
Median
$33.88
Typical High
$63.10
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$11.75
Median
$15.14
Typical High
$33.11
Cigna
Setting
Facility
Modifier
None
Typical Low
$16.60
Median
$32.36
Typical High
$91.20
Cigna
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$26.30
Typical High
$38.90
ConnectiCare
Setting
Professional
Modifier
None
Typical Low
$14.79
Median
$19.95
Typical High
$34.67
United
Setting
Facility
Modifier
None
Typical Low
$83.18
Median
$83.18
Typical High
$83.18
United
Setting
Professional
Modifier
None
Typical Low
$8.91
Median
$16.60
Typical High
$44.67
2 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$10.23
Median
$10.72
Typical High
$10.72
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$4.07
Median
$4.27
Typical High
$4.27

Where Connecticut sits

The same service costs 3.5 times more in Kansas than in Alabama. 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.

Connecticut· 27th of 51

$23.99

KS $57.54AL $16.22

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.