Ammonia test cost in Detroit, MI
In Detroit-Warren-Dearborn, MI, 30 hospitals list a cash price for ammonia blood test: from $16.80 to $176.25, with a median of $65.00. The lowest listed price is at Henry Ford Health St John Hospital — $48.20 less than the median here. Across Michigan, the median is $65.00 at 87 hospitals.
Cash prices at 30 facilities across 21 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 Dec 31, 2025 and Sep 2, 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 Detroit-Warren-Dearborn, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Henry Ford Health St John Hospital lowest Detroit, MI · (313) 343-4000 K STONE, AMMONIA, URINE-LC+1 more line at this price source file | $16.80 | $30.00 | $11.80–$23.39 | 44% |
| Ascension River District Hospital East China Township, MI · (810) 329-7111 K STONE, AMMONIA, URINE-LC+1 more line at this price source file | $17.36 | $31.00 | $11.80–$23.39 | 44% |
| Henry Ford Health Warren Hospital Warren, MI · (586) 573-5000 K STONE, AMMONIA, URINE-LC+1 more line at this price source file | $18.48 | $33.00 | $11.80–$23.39 | 44% |
| Henry Ford Wyandotte Hospital Wyandotte, MI · (734) 246-6000 HB LAB AMMONIA File of Jun 28, 2026 · source file | $20.11 | $98.00 | $7.62–$51.24 | 79% |
| Henry Ford Health Hospital Detroit, MI · (313) 916-2600 HB LAB AMMONIA File of Jun 28, 2026 · source file | $20.11 | $98.00 | $7.62–$51.24 | 79% |
| Henry Ford Health West Bloomfield Hospital West Bloomfield, MI · (248) 325-1000 HB LAB AMMONIA File of Jun 28, 2026 · source file | $20.11 | $98.00 | $7.62–$51.24 | 79% |
| Henry Ford Macomb Hospital Clinton Twp, MI · (586) 263-2300 HB LAB AMMONIA File of Jun 28, 2026 · source file | $20.11 | $98.00 | $7.62–$59.66 | 79% |
| Surgeons Choice Medical Center Southfield, MI AMMONIA+1 more line at this price source file | $30.00 | $30.00 | $12.85–$14.28 | — |
| Ascension River District Hospital East China Township, MI · (810) 329-7111 AMMONIA+1 more line at this price source file | $33.07 | $59.05 | $11.80–$23.39 | 44% |
| McLaren Macomb Mount Clemens, MI · (586) 493-8000 Ammonia Venous+1 more line at this price File of Dec 31, 2025 · source file | $33.55 | $67.10 | $7.97–$44.96 | 50% |
| Henry Ford Health Warren Hospital Warren, MI · (586) 573-5000 AMMONIA+1 more line at this price source file | $35.84 | $64.00 | $11.80–$23.39 | 44% |
| Henry Ford Providence Novi Hospital - Novi Campus Novi, MI · (248) 849-3000 AMMONIA, SERUM+1 more line at this price source file | $39.20 | $70.00 | $10.62–$26.19 | 44% |
| Henry Ford Providence Southfield Hospital Southfield, MI · (248) 849-3000 AMMONIA, SERUM+1 more line at this price source file | $39.20 | $70.00 | $10.62–$26.19 | 44% |
| Henry Ford Rochester Hospital Rochester, MI · (248) 652-5000 AMMONIA source file | $41.36 | $88.00 | $17.30–$18.82 | 53% |
| Henry Ford Health St John Hospital Detroit, MI · (313) 343-4000 AMMONIA+1 more line at this price source file | $47.04 | $84.00 | $11.80–$23.39 | 44% |
| Karmanos Cancer Center Detroit, MI · (800) 576-6266 AMMONIA, BLOOD File of Dec 31, 2025 · source file | $63.15 | $126.30 | $7.97–$94.73 | 50% |
| McLaren Port Huron Port Huron, MI · (810) 987-5000 ASSAY OF AMMONIA File of Dec 31, 2025 · source file | $64.41 | $128.81 | $7.97–$65.44 | 50% |
| Beaumont Hospital, Troy Troy, MI · (248) 964-8800 Hc Ammonia Level source file | $65.00 | $65.00 | — | — |
| Corewell Health Wayne Hospital Wayne, MI · (734) 467-4175 Hc Ammonia Level source file | $65.00 | $65.00 | — | — |
| Beaumont Hospital - Taylor Taylor, MI · (313) 295-5000 Hc Ammonia Level source file | $65.00 | $65.00 | — | — |
| Corewell Health Trenton Hospital Trenton, MI · (734) 671-3800 Hc Ammonia Level source file | $65.00 | $65.00 | — | — |
| Beaumont Hospital - Grosse Pointe Grosse Pointe, MI · (313) 473-1000 Hc Ammonia Level source file | $65.00 | $65.00 | — | — |
| McLaren Oakland Pontiac, MI · (248) 338-5000 Ammonia Venous+1 more line at this price File of Dec 31, 2025 · source file | $67.90 | $135.80 | $7.97–$97.94 | 50% |
| McLaren Port Huron Port Huron, MI · (810) 987-5000 Ammonia Arterial+1 more line at this price File of Dec 31, 2025 · source file | $68.60 | $137.20 | $7.97–$86.81 | 50% |
| St Joseph Mercy Livingston Hospital Brighton, MI · (517) 545-6000 HC Ammonia File of Mar 31, 2026 · source file | $70.85 | $109.00 | $7.97–$109.00 | 35% |
| St Mary Mercy Livonia Livonia, MI · (734) 655-4800 HC Ammonia File of Mar 31, 2026 · source file | $70.85 | $109.00 | $7.97–$109.00 | 35% |
| St Joseph Mercy Oakland Pontiac, MI · (248) 858-3000 HC Ammonia File of Mar 31, 2026 · source file | $70.85 | $109.00 | $7.97–$109.00 | 35% |
| McLaren Lapeer Region Lapeer, MI · (810) 667-5500 Ammonia Arterial+1 more line at this price File of Dec 31, 2025 · source file | $92.55 | $185.10 | $7.97–$78.83 | 50% |
| RIM - Rehabilitation Institute of Michigan Detroit, MI AMMONIA File of Apr 8, 2026 · source file | $123.75 | $165.00 | — | 25% |
| VHS Huron Valley-Sinai Hospital Commerce Charter Twp, MI · (248) 937-3370 AMMONIA File of May 20, 2026 · source file | $137.25 | $183.00 | $1.00–$19.88 | 25% |
| Harper University Hospital Detroit, MI · (313) 745-6211 AMMONIA+1 more line at this price File of Sep 2, 2026 · source file | $145.50 | $194.00 | $1.00–$19.88 | 25% |
| VHS Childrens Hospital of Michigan Detroit, MI · (313) 745-5437 AMMONIA File of Apr 6, 2026 · source file | $147.00 | $196.00 | — | 25% |
| VHS Sinai Grace Hospital Detroit, MI · (313) 966-3300 AMMONIA File of Apr 8, 2026 · source file | $166.50 | $222.00 | — | 25% |
| VHS Detroit Receiving Hospital Detroit, MI · (313) 745-2941 AMMONIA File of Apr 7, 2026 · source file | $176.25 | $235.00 | — | 25% |
Outpatient: lowest $16.80, median $65.00, highest $176.25 — a 10.5× difference within the same market.
As an inpatient, the same code is billed by 23 facilities here, median $65.00. 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 14 of 21 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.
3 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 82140 ($90.62). 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 |
|---|---|---|
| St Mary Mercy Livonia Livonia, MIHC Warde 3717400 Ammonia 24 Hour Urine | $8.45 | file |
| St Joseph Mercy Livingston Hospital Brighton, MIHC Warde 3717400 Ammonia 24 Hour Urine | $8.45 | file |
| St Joseph Mercy Oakland Pontiac, MIHC Warde 3717400 Ammonia 24 Hour Urine | $8.45 | file |