Lab tests CPT 82140 Outpatient

Ammonia test cost in Marietta, OH

In Marietta, OH, 2 hospitals list a cash price for ammonia blood test: from $104.65 to $107.59, with a median of $106.12. The lowest listed price is at Marietta Memorial Hospital — $1.47 less than the median here. Across Ohio, the median is $54.75 at 129 hospitals.

Cash prices at 2 facilities for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Oct 1, 2026; the hospital files themselves were last updated between Oct 1, 2026 and Oct 1, 2026.

Lowest$104.65Marietta Memorial Hospital

Median$106.12half of hospitals charge less

Highest$107.59in this market

Difference1.0×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Marietta, OH.

median

Lowest $104.65Highest $107.59

Hospitals, cheapest first

Hospital	Cash price	List price	Insurers pay	Off list
Marietta Memorial Hospital lowest Marietta, OH · (740) 374-1400 Ammonia, Blood File of Oct 1, 2026 · source file	$104.65	$174.41	—	40%
Selby General Hospital Marietta, OH · (740) 568-2000 Ammonia, Blood File of Oct 1, 2026 · source file	$107.59	$179.32	—	40%

Hospital The hospital that published the price, its city and the line exactly as written in its price file.

Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More

List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More

Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More

Off list How much lower the cash price is than the list price.

Outpatient: lowest $104.65, median $106.12, highest $107.59.

As an inpatient, the same code is billed by 2 facilities here, median $106.12. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

What it is

An ammonia test measures ammonia in the blood. It is used for confusion or drowsiness in people with liver disease and for some rare inherited disorders in newborns.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.