Ammonia test cost in Kansas City, MO — inpatient
In Kansas City, MO-KS, 8 hospitals list a cash price for ammonia blood test as an inpatient: from $43.00 to $183.20, with a median of $107.89. The lowest listed price is at Liberty Hospital — $64.89 less than the median here. Across Missouri, the median is $76.50 at 63 hospitals.
Cash prices at 8 facilities across 7 cities for code 82140, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 6, 2026 and Apr 20, 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 Kansas City, MO-KS.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Liberty Hospital lowest Liberty, MO · (816) 781-7200 AMMONIA source file | $43.00 | $157.00 | $43.80–$128.11 | 73% |
| NKC Health North Kansas City, MO · (816) 691-2000 AMMONIA LEVEL File of Mar 6, 2026 · source file | $58.29 | $201.00 | $120.60–$164.42 | 71% |
| Children's Mercy Hospital Kansas City, MO · (816) 234-3000 AMMONIA PLASMA MAIN source file | $82.08 | $171.00 | $82.08–$153.90 | 52% |
| Children's Mercy Hospital Kansas Overland Park, KS · (913) 696-8000 AMMONIA PLASMA MAIN source file | $82.08 | $171.00 | $82.08–$153.90 | 52% |
| Cass Regional Medical Center Harrisonville, MO · (816) 380-5888 AMMONIA 82140+1 more line at this price File of Apr 7, 2026 · source file | $133.70 | $191.00 | $24.83–$185.08 | 30% |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC AMMONIA LEVEL File of Apr 1, 2026 · source file | $181.16 | $181.16 | — | — |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC AMMONIA LEVEL File of Apr 1, 2026 · source file | $181.16 | $181.16 | — | — |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 AMMONIA LEVEL File of Apr 20, 2026 · source file | $183.20 | $261.71 | $222.45 | 30% |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 AMMONIA URINE File of Apr 20, 2026 · source file | $309.27 | $441.81 | $375.54 | 30% |
Inpatient: lowest $43.00, median $107.89, highest $183.20 — a 4.3× difference within the same market.
As an outpatient, the same code is billed by 18 facilities here, median $181.16 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 6 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 3 it is 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.