BUN test cost in Kansas City, MO — inpatient
In Kansas City, MO-KS, 9 hospitals list a cash price for blood urea nitrogen (BUN) test as an inpatient: from $7.11 to $68.27, with a median of $22.08. The lowest listed price is at Ascentist Hospital — $14.97 less than the median here. Across Missouri, the median is $37.05 at 62 hospitals.
Cash prices at 9 facilities across 8 cities for code 84520, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 6, 2026 and Jul 9, 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 |
|---|---|---|---|---|
| Ascentist Hospital lowest Leawood, KS · (913) 529-1801 ASSAY OF UREA NITROGEN File of Apr 26, 2026 · source file | $7.11 | $20.00 | $6.56–$8.49 | 64% |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC BUN - LIVER FIBROSIS CHRONIC VIRAL HEPATITIS FIBROMETER PANEL - ARUP+1 more line at this price File of Apr 1, 2026 · source file | $12.08 | $12.08 | — | — |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC BLOOD UREA NITROGEN - BUN+1 more line at this price File of Apr 1, 2026 · source file | $12.08 | $12.08 | — | — |
| Children's Mercy Hospital Kansas City, MO · (816) 234-3000 BUN SERUM OR PLASMA CMH+1 more line at this price File of Apr 1, 2026 · source file | $22.08 | $46.00 | $22.08–$41.40 | 52% |
| Children's Mercy Hospital Kansas Overland Park, KS · (913) 696-8000 UREA NITROGEN BODY FLUID CMH+1 more line at this price File of Apr 1, 2026 · source file | $22.08 | $46.00 | $22.08–$41.40 | 52% |
| Liberty Hospital Liberty, MO · (816) 781-7200 BUN File of Jul 9, 2026 · source file | $26.00 | $94.00 | $26.23–$76.70 | 72% |
| NKC Health North Kansas City, MO · (816) 691-2000 BLOOD UREA NITROGEN+1 more line at this price File of Mar 6, 2026 · source file | $26.10 | $90.00 | $54.00–$73.62 | 71% |
| Cass Regional Medical Center Harrisonville, MO · (816) 380-5888 84520 UREA NITROGEN File of Apr 7, 2026 · source file | $36.40 | $52.00 | $6.76–$50.39 | 30% |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC ASSAY UREA NITROGEN, QUAN - POCT UREA (BUN) File of Apr 1, 2026 · source file | $60.39 | $60.39 | — | — |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC ASSAY UREA NITROGEN, QUAN - POCT UREA (BUN) File of Apr 1, 2026 · source file | $60.39 | $60.39 | — | — |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 BUN File of Apr 20, 2026 · source file | $68.27 | $97.52 | $82.89 | 30% |
Inpatient: lowest $7.11, median $22.08, highest $68.27 — a 9.6× difference within the same market.
As an outpatient, the same code is billed by 16 facilities here, median $52.34 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 7 of 7 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
A BUN test measures urea nitrogen, a waste product removed by the kidneys. It is used with creatinine to check kidney function and hydration.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.