Ammonia test cost in Des Moines, IA
In Des Moines-West Des Moines, IA, 7 hospitals list a cash price for ammonia blood test: from $51.00 to $338.00, with a median of $105.60. The lowest listed price is at Dallas County Hospital — $54.60 less than the median here. Across Iowa, the median is $88.16 at 77 hospitals.
Cash prices at 7 facilities across 5 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 Jan 28, 2026 and Sep 23, 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 Des Moines-West Des Moines, IA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Dallas County Hospital lowest Perry, IA · (515) 465-3547 UR RANDOM AMMONIA | $51.00 | $78.00 | $14.28–$66.30 | 35% | — source file |
| UnityPoint Health - Des Moines Iowa Methodist Medical Des Moines, IA · (515) 343-1000 HC AMMONIA | $64.28 | $80.35 | $14.57–$34.79 | 20% | Jan 28, 2026 source file |
| UnityPoint Health - Des Moines Iowa Methodist Medical Des Moines, IA · (515) 343-1000 HC AMMONIA | $64.28 | $80.35 | $14.57–$34.79 | 20% | Jan 28, 2026 source file |
| Broadlawns Medical Center Des Moines, IA · (515) 282-2200 Assay Of Ammonia | $70.00 | $70.00 | — | — | Sep 1, 2026 source file |
| Madison County Memorial Hospital Winterset, IA · (515) 462-2373 Ammonia level | $105.60 | $132.00 | $45.88–$132.00 | 20% | Sep 23, 2026 source file |
| Dallas County Hospital Perry, IA · (515) 465-3547 AMMONIA | $107.00 | $165.00 | $14.28–$140.25 | 35% | — source file |
| MercyOne Newton Medical Center Newton, IA · (641) 792-1273 HC Ammonia | $154.70 | $238.00 | $14.12–$238.00 | 35% | Mar 31, 2026 source file |
| MercyOne Des Moines Medical Center Des Moines, IA · (515) 247-4436 HC Ammonia | $216.45 | $333.00 | $14.12–$333.00 | 35% | Mar 31, 2026 source file |
| MercyOne Des Moines Medical Center Des Moines, IA · (515) 247-4436 HC Warde 3717400 Ammonia 24 Hour Urine | $216.45 | $333.00 | $14.12–$333.00 | 35% | Mar 31, 2026 source file |
| MercyOne West Des Moines Medical Center West Des Moines, IA HC Ammonia | $338.00 | $338.00 | $14.12–$338.00 | — | Mar 31, 2026 source file |
Outpatient: lowest $51.00, median $105.60, highest $338.00 — a 6.6× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $112.35. 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 4 of 6 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.