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Chemistry Test For A Specific Substance

Iowa 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?

$30.20

Typical negotiated rate. In Iowa, July 2026.

Insurers have agreed to pay about $30.20 for this service. The price depends on where it is billed: about $25.12 from a physician practice, and about $43.65 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 7 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$25.12$19.50 to $60.26
FacilityA hospital or hospital-owned outpatient department$43.65$25.12 to $64.57

How much rates vary

Facilitymedian $44 · 10th to 90th $19 to $72Professionalmedian $25 · 10th to 90th $17 to $166
$10.0$20.0$50.0$100.0facility $44professional $25

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
$19.50
Median
$56.23
Typical High
$72.44
Aetna
Setting
Professional
Modifier
Global
Typical Low
$16.60
Median
$19.50
Typical High
$165.96
Cigna
Setting
Professional
Modifier
Global
Typical Low
$30.20
Median
$47.86
Typical High
$60.26
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$25.12
Median
$57.54
Typical High
$109.65
Medica
Setting
Facility
Modifier
Global
Typical Low
$25.12
Median
$33.11
Typical High
$79.43
Medica
Setting
Professional
Modifier
Global
Typical Low
$15.14
Median
$26.30
Typical High
$64.57
Midlands
Setting
Professional
Modifier
Global
Typical Low
$28.84
Median
$30.90
Typical High
$33.11
Midlands
Setting
Facility
Modifier
Global
Typical Low
$28.84
Median
$28.84
Typical High
$28.84
United
Setting
Facility
Modifier
Global
Typical Low
$25.12
Median
$25.12
Typical High
$56.23
United
Setting
Professional
Modifier
Global
Typical Low
$15.14
Median
$19.95
Typical High
$63.10
Wellmark
Setting
Professional
Modifier
Global
Typical Low
$19.95
Median
$25.12
Typical High
$25.12

Where Iowa 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.

Iowa $30.20 · 13th 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.