Ammonia test cost in Louisville, KY
In Louisville/Jefferson County, KY-IN, 18 hospitals list a cash price for ammonia blood test: from $34.30 to $218.93, with a median of $88.66. The lowest listed price is at Norton Clark Hospital — $54.36 less than the median here. Across Kentucky, the median is $98.28 at 77 hospitals.
Cash prices at 18 facilities across 10 cities for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 11, 2026 and Sep 18, 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 Louisville/Jefferson County, KY-IN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Norton Clark Hospital lowest Jeffersonville, IN · (812) 283-2147 HB AMMONIA | $34.30 | $245.00 | $12.38–$214.38 | 86% | Jun 3, 2026 source file |
| UofL Health -Shelbyville Shelbyville, KY · (502) 647-4000 ASSAY OF AMMONIA | $46.36 | $122.00 | $16.34–$122.00 | 62% | — source file |
| UofL Health-Louisville – South Hospital Shepherdville, KY ASSAY OF AMMONIA | $52.20 | $116.00 | $19.49–$116.00 | 55% | — source file |
| UofL Health - Jewish Hospital and Mary & Elizabeth Hospital Louisville, KY · (502) 587-4011 ASSAY OF AMMONIA | $54.90 | $122.00 | $20.50–$122.00 | 55% | — source file |
| Norton Brownsboro Hospital Louisville, KY HB AMMONIA | $84.40 | $422.00 | $14.57–$350.26 | 80% | Feb 11, 2026 source file |
| Norton Women's and Kosair Children's Hospital Louisville, KY HB AMMONIA | $84.40 | $422.00 | $14.57–$350.26 | 80% | Feb 13, 2026 source file |
| Norton West Louisville Hospital Louisville, KY HB AMMONIA | $84.40 | $422.00 | $14.57–$350.26 | 80% | Feb 11, 2026 source file |
| Norton Hospital Louisville, KY · (502) 629-8000 HB AMMONIA | $84.40 | $422.00 | $14.57–$350.26 | 80% | Feb 11, 2026 source file |
| Norton Children's Hospital Louisville, KY HB AMMONIA | $84.40 | $422.00 | $14.57–$358.70 | 80% | Feb 11, 2026 source file |
| CHI Saint Joseph Flaget Memorial Hospital Bardstown, KY · (502) 350-5000 HC LAB AMMONIA (NH3) | $92.92 | $219.00 | $12.38–$199.29 | 58% | Feb 28, 2026 source file |
| Saints Mary & Elizabeth Hospital Louisville, KY ASSAY OF AMMONIA | $98.28 | $273.00 | $45.86–$273.00 | 64% | — source file |
| University of Louisville Hospital Louisville, KY · (502) 562-3000 ASSAY OF AMMONIA | $106.32 | $443.00 | $74.42–$443.00 | 76% | — source file |
| Baptist Health LaGrange La Grange, KY · (502) 222-5388 Ammonia level | $180.59 | $240.79 | $12.38–$481.58 | 25% | Sep 15, 2026 source file |
| Baptist Health Floyd New Albany, IN · (812) 944-7701 Ammonia level | $180.59 | $240.79 | $12.38–$361.19 | 25% | Sep 15, 2026 source file |
| Baptist Health Louisville Louisville, KY · (502) 897-8100 Ammonia level | $180.59 | $240.79 | $8.74–$481.58 | 25% | Sep 18, 2026 source file |
| St. Vincent Salem Hospital Salem, IN · (812) 883-5881 AMMONIA | $204.00 | $340.00 | $7.20–$33.22 | 40% | — source file |
| St. Vincent Salem Hospital Salem, IN · (812) 883-5881 AMMONIA | $204.00 | $340.00 | $7.20–$33.22 | 40% | — source file |
| Harrison County Hospital Corydon, IN · (812) 738-4251 Ammonia level | $210.00 | $350.00 | $7.29–$315.00 | 40% | Jul 16, 2026 source file |
| Cobalt Rehabilitation Hospital Louisville Clarksville, IN Ammonia | $218.93 | $218.93 | $14.13–$186.09 | — | Aug 6, 2026 source file |
Outpatient: lowest $34.30, median $88.66, highest $218.93 — a 6.4× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $84.40. 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 16 of 18 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.