BUN test cost in Denver, CO — inpatient
In Denver-Aurora-Centennial, CO, 10 hospitals list a cash price for blood urea nitrogen (BUN) test as an inpatient: from $5.85 to $143.50, with a median of $118.58. The lowest listed price is at Childrens Hospital Colorado — $112.73 less than the median here. Across Colorado, the median is $62.50 at 47 hospitals.
Cash prices at 10 facilities across 7 cities for code 84520, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Aug 6, 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 Denver-Aurora-Centennial, CO.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Childrens Hospital Colorado lowest Aurora, CO · (720) 777-1234 HB=BLOOD UREA NITROGEN (BUN) File of Apr 17, 2026 · source file | $5.85 | $9.00 | $1.35–$8.28 | 35% |
| Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=POC - BLOOD UREA NITROGEN (BUN) File of Apr 17, 2026 · source file | $16.25 | $25.00 | $3.75–$23.00 | 35% |
| Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=CSHB UREA NITROGEN FIBROMETER+1 more line at this price File of Apr 17, 2026 · source file | $20.15 | $31.00 | $4.65–$28.52 | 35% |
| Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC UREA NITROGEN (BUN)QUAN File of Apr 30, 2026 · source file | $21.45 | $61.28 | $21.02 | 65% |
| National Jewish Health Denver, CO · (303) 388-4461 HC UREA NITROGEN QUANT source file | $36.62 | $52.32 | $3.95–$44.47 | 30% |
| Cobalt Rehabilitation Hospital Denver Westminster, CO Urea Nitrogen File of Aug 6, 2026 · source file | $39.50 | $39.50 | $27.65–$33.58 | — |
| Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC ASSAY OF UREA NITROGEN-ARUP2005661 File of Apr 30, 2026 · source file | $50.45 | $144.14 | $49.44 | 65% |
| Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=UREA, MISC FLUID+1 more line at this price File of Apr 17, 2026 · source file | $83.85 | $129.00 | $19.35–$118.68 | 35% |
| Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC UREA NITROGEN, BODY FLUID ARUP TO MAYO CLINIC LAB UEBF File of Apr 30, 2026 · source file | $84.87 | $242.46 | $83.16 | 65% |
| PAM Specialty Hospital of Denver Denver, CO Urea Nitrogen File of Aug 6, 2026 · source file | $105.33 | $105.33 | $68.46–$89.53 | — |
| Craig Hospital Englewood, CO HC BUN QUANT File of Jun 25, 2026 · source file | $131.83 | $346.00 | $179.23–$311.40 | 62% |
| AdventHealth Castle Rock Castle Rock, CO · (720) 455-5000 HC ASSAY UREA NITROGEN, QUAN - POCT UREA (BUN)+3 more lines at this price File of Apr 1, 2026 · source file | $143.50 | $143.50 | — | — |
| AdventHealth Littleton Littleton, CO · (303) 730-8900 HC BUN - LIVER FIBROSIS CHRONIC VIRAL HEPATITIS FIBROMETER PANEL - ARUP+3 more lines at this price File of Apr 1, 2026 · source file | $143.50 | $143.50 | — | — |
| AdventHealth Porter Denver, CO · (303) 778-1955 HC ASSAY UREA NITROGEN, QUAN - POCT UREA (BUN)+3 more lines at this price File of Apr 1, 2026 · source file | $143.50 | $143.50 | — | — |
| AdventHealth Parker Parker, CO · (303) 269-4000 HC BLOOD UREA NITROGEN - BUN+3 more lines at this price File of Apr 1, 2026 · source file | $143.50 | $143.50 | — | — |
Inpatient: lowest $5.85, median $118.58, highest $143.50 — a 24.5× difference within the same market.
As an outpatient, the same code is billed by 23 facilities here, median $160.59 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 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 1 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.