Lab tests CPT 82140 Inpatient — admitted to hospital

Ammonia test cost in Salem, OR — inpatient

In Salem, OR, 3 hospitals list a cash price for ammonia blood test as an inpatient: from $24.08 to $68.37, with a median of $68.37. The lowest listed price is at Legacy Silverton Medical Center — $44.29 less than the median here. Across Oregon, the median is $87.10 at 47 hospitals.

Cash prices at 3 facilities across 3 cities for code 82140, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$24.08Legacy Silverton Medical Center
Median$68.37half pay less
Highest$68.37in this market
Difference2.8×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 Salem, OR.

median
Lowest $24.08Highest $68.37

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Legacy Silverton Medical Center lowest Silverton, OR · (503) 873-1500 HC AMMONIA $24.08 $37.04 — 35% Apr 1, 2026
source file
Salem Hospital Salem, OR · (503) 561-5200 HCHRG AMMONIA $68.37 $129.00 — 47% Apr 1, 2026
source file
West Valley Hospital Dallas, OR · (503) 623-8301 HCHRG AMMONIA $68.37 $129.00 — 47% Apr 1, 2026
source file

Inpatient: lowest $24.08, median $68.37, highest $68.37 — a 2.8× difference within the same market.

As an outpatient, the same code is billed by 4 facilities here, median $68.37 — that is the price to compare if you are not being admitted.

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.