Ammonia test cost in Grand Rapids, MI — inpatient
In Grand Rapids-Wyoming-Kentwood, MI, 7 hospitals list a cash price for ammonia blood test as an inpatient: from $23.74 to $113.60, with a median of $45.00. The lowest listed price is at Trinity Health Grand Haven Hospital — $21.26 less than the median here. Across Michigan, the median is $65.00 at 86 hospitals.
Cash prices at 7 facilities across 6 cities for code 82140, as an inpatient (admitted to hospital) . Collected Sep 28, 2026; the hospital files themselves were last updated between Nov 21, 2025 and Apr 22, 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 Grand Rapids-Wyoming-Kentwood, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Trinity Health Grand Haven Hospital lowest Grand Haven, MI · (616) 847-5268 AMMONIUM URINE File of Nov 21, 2025 · source file | $23.74 | $23.74 | $12.98–$56.74 | — |
| Corewell Health Blodgett Hospital East Grand Rapids, MI Hc Ammonia Level File of Apr 1, 2026 · source file | $45.00 | $45.00 | — | — |
| Corewell Health Greenville Hospital Greenville, MI · (616) 754-4691 Hc Ammonia Level File of Apr 1, 2026 · source file | $45.00 | $45.00 | — | — |
| Corewell Health Zeeland Community Hospital Zeeland, MI · (616) 772-4644 Hc Ammonia Level File of Apr 1, 2026 · source file | $45.00 | $45.00 | — | — |
| Corewell Health Butterworth Hospital Grand Rapids, MI · (616) 391-1774 Hc Ammonia Level+1 more line at this price File of Apr 1, 2026 · source file | $45.00 | $45.00 | — | — |
| Mercy Health Saint Marys Grand Rapids, MI · (616) 685-5000 HC Ammonia File of Mar 31, 2026 · source file | $66.95 | $103.00 | $7.97–$103.00 | 35% |
| Sheridan Community Hospital Sheridan, MI · (989) 291-3261 AMMONIA SENDOUT+1 more line at this price File of Apr 22, 2026 · source file | $113.60 | $142.00 | $10.53–$125.39 | 20% |
| Trinity Health Grand Haven Hospital Grand Haven, MI · (616) 847-5268 AMMONIA File of Nov 21, 2025 · source file | $121.00 | $121.00 | $12.98–$56.74 | — |
Inpatient: lowest $23.74, median $45.00, highest $113.60 — a 4.8× difference within the same market.
As an outpatient, the same code is billed by 7 facilities here, median $45.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 of 3 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 ($90.00). 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.
| Hospital | Cash price | File |
|---|---|---|
| Mercy Health Saint Marys Grand Rapids, MIHC Warde 3717400 Ammonia 24 Hour Urine | $8.45 | file |