Ammonia test cost in Coeur d'Alene, ID
In Coeur d'Alene, ID, 2 hospitals list a cash price for ammonia blood test: from $91.50 to $104.00, with a median of $97.75. The lowest listed price is at Kootenai Health — $6.25 less than the median here. Across Idaho, the median is $72.00 at 27 hospitals.
Cash prices at 2 facilities across 2 cities for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Mar 27, 2026 and Mar 27, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Coeur d'Alene, ID.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kootenai Health lowest Coeur D'Alene, ID · (208) 625-4000 HC AMONIA, URINE, 24 HOUR (REF LAB) | $91.50 | $122.00 | $12.59–$159.92 | 25% | Mar 27, 2026 source file |
| Kootenai Health Coeur D'Alene, ID · (208) 625-4000 HC AMMONIUM, 24 HOUR, URINE (REF LAB) | $99.00 | $132.00 | $12.59–$159.92 | 25% | Mar 27, 2026 source file |
| Northwest Specialty Hospital Post Falls, ID · (208) 262-2300 ASSAY OF AMMONIA | $104.00 | $104.00 | $14.57–$25.62 | — | — source file |
| Kootenai Health Coeur D'Alene, ID · (208) 625-4000 HC AMMONIA | $126.75 | $169.00 | $12.59–$159.92 | 25% | Mar 27, 2026 source file |
Outpatient: lowest $91.50, median $97.75, highest $104.00 — a 1.1× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $91.50. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 1 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 82140 ($91.63). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Kootenai Health Coeur D'Alene, IDHC KH MAYO SUP24 ASSAY OF AMMONIA | $9.00 | file |