BUN test cost in Tucson, AZ — inpatient
In Tucson, AZ, 8 hospitals list a cash price for blood urea nitrogen (BUN) test as an inpatient: from $5.77 to $69.72, with a median of $37.02. The lowest listed price is at Banner University Med Center South — $31.25 less than the median here. Across Arizona, the median is $17.39 at 52 hospitals.
Cash prices at 8 facilities across 2 cities for code 84520, as an inpatient (admitted to hospital) . Collected Oct 2, 2026; the hospital files themselves were last updated between Mar 2, 2026 and Sep 25, 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 Tucson, AZ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Banner University Med Center South lowest Tucson, AZ · (520) 874-2000 LAB NITROGEN UREA QN File of Mar 2, 2026 · source file | $5.77 | $37.00 | $16.65–$29.60 | 84% |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 LAB NITROGEN UREA QN File of Sep 25, 2026 · source file | $5.99 | $37.00 | $12.95–$27.75 | 84% |
| Banner University Med Center South Tucson, AZ · (520) 874-2000 LAB NITROGEN UREA QN NS File of Mar 2, 2026 · source file | $10.45 | $67.00 | $30.15–$53.60 | 84% |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 LAB NITROGEN UREA QN NS File of Sep 25, 2026 · source file | $10.85 | $67.00 | $23.45–$50.25 | 84% |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 POC NITROGEN UREA QN+1 more line at this price File of Sep 25, 2026 · source file | $12.31 | $76.00 | $26.60–$57.00 | 84% |
| Tucson Medical Center Rincon Hospital Tucson, AZ · (520) 324-1399 HC Urea Nitrogen Fluid File of Apr 30, 2026 · source file | $14.28 | $51.00 | — | 72% |
| Tucson Medical Center Tucson, AZ · (520) 324-1399 HC Urea Nitrogen Fluid File of Apr 30, 2026 · source file | $14.28 | $51.00 | — | 72% |
| Banner University Med Center South Tucson, AZ · (520) 874-2000 POC NITROGEN UREA QN TELCOR File of Mar 2, 2026 · source file | $15.76 | $101.00 | $45.45–$80.80 | 84% |
| Tucson Medical Center Rincon Hospital Tucson, AZ · (520) 324-1399 HC POC Bun Istat File of Apr 30, 2026 · source file | $21.28 | $76.00 | — | 72% |
| Tucson Medical Center Tucson, AZ · (520) 324-1399 HC POC Bun Istat File of Apr 30, 2026 · source file | $21.28 | $76.00 | — | 72% |
| Banner University Med Center South Tucson, AZ · (520) 874-2000 POC NITROGEN UREA QN File of Mar 2, 2026 · source file | $21.37 | $137.00 | $61.65–$109.60 | 84% |
| Tucson Medical Center Tucson, AZ · (520) 324-1399 HC Bun Blood File of Apr 30, 2026 · source file | $23.24 | $83.00 | — | 72% |
| Tucson Medical Center Rincon Hospital Tucson, AZ · (520) 324-1399 HC Bun Blood File of Apr 30, 2026 · source file | $23.24 | $83.00 | — | 72% |
| Northwest Hospital Tucson, AZ · (520) 469-8100 UREA NITROGEN,QUAN File of Apr 1, 2026 · source file | $59.76 | $166.00 | $24.90–$149.40 | 64% |
| Northwest Medical Center Houghton Tucson, AZ · (520) 416-7100 UREA NITROGEN,QUAN File of Apr 1, 2026 · source file | $64.74 | $166.00 | $22.24–$99.60 | 61% |
| Northwest Medical Center Sahuarita Sahuarita, AZ · (520) 416-7100 UREA NITROGEN,QUAN File of Apr 1, 2026 · source file | $64.74 | $166.00 | $22.24–$99.60 | 61% |
| Oro Valley Hospital Tucson, AZ · (520) 901-3500 UREA NITROGEN,QUAN File of Apr 1, 2026 · source file | $69.72 | $166.00 | $25.40–$149.40 | 58% |
Inpatient: lowest $5.77, median $37.02, highest $69.72 — a 12.1× difference within the same market.
As an outpatient, the same code is billed by 8 facilities here, median $22.08 — 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 2 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.