Lab tests CPT 84520 Inpatient — admitted to hospital

BUN test cost in Detroit, MI — inpatient

In Detroit-Warren-Dearborn, MI, 22 hospitals list a cash price for blood urea nitrogen (BUN) test as an inpatient: from $3.47 to $65.25, with a median of $12.88. The lowest listed price is at Henry Ford Health St John Hospital and 2 other hospitals — $9.41 less than the median here. Across Michigan, the median is $16.75 at 91 hospitals.

Cash prices at 22 facilities across 16 cities for code 84520, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Dec 31, 2025 and Sep 2, 2026.

Lowest$3.47Henry Ford Health St John Hospital + 2 more
Median$12.88half of hospitals charge less
Highest$65.25in this market
Difference18.8×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Detroit-Warren-Dearborn, MI.

median
Lowest $3.47Highest $120.00

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
Henry Ford Health St John Hospital lowest Detroit, MI · (313) 343-4000 UREA NITROGEN, FLUID-ARUP File of Jan 1, 2026 · source file $3.47 $6.20 $5.13–$6.05 44%
Henry Ford Health Warren Hospital lowest Warren, MI · (586) 573-5000 UREA NITROGEN, FLUID-ARUP File of Jan 1, 2026 · source file $3.47 $6.20 $5.13–$6.05 44%
Ascension River District Hospital lowest East China Township, MI · (810) 329-7111 UREA NITROGEN, FLUID-ARUP File of Jan 1, 2026 · source file $3.47 $6.20 $5.13–$6.05 44%
Ascension River District Hospital East China Township, MI · (810) 329-7111 UREA NITROGEN; QUAN File of Jan 1, 2026 · source file $8.27 $14.76 $5.13–$6.05 44%
Henry Ford Providence Southfield Hospital Southfield, MI · (248) 849-3000 UREA NITROGEN, QUANTITATIVE+4 more lines at this price File of Jan 1, 2026 · source file $8.40 $15.00 $0.94–$6.76 44%
Henry Ford Providence Novi Hospital - Novi Campus Novi, MI · (248) 849-3000 UREA NITROGEN, QUANTITATIVE+3 more lines at this price File of Jan 1, 2026 · source file $8.40 $15.00 $0.94–$6.76 44%
Henry Ford Health Warren Hospital Warren, MI · (586) 573-5000 UREA NITROGEN; QUAN File of Jan 1, 2026 · source file $8.96 $16.00 $5.13–$6.05 44%
Karmanos Cancer Center Detroit, MI · (800) 576-6266 BUN - LYTES+1 more line at this price File of Dec 31, 2025 · source file $9.05 $18.10 $2.16–$13.58 50%
Henry Ford Health Warren Hospital Warren, MI · (586) 573-5000 BUN File of Jan 1, 2026 · source file $9.52 $17.00 $5.13–$6.05 44%
McLaren Port Huron Port Huron, MI · (810) 987-5000 Blood Urea Nitrogen File of Dec 31, 2025 · source file $9.55 $19.10 $2.16–$14.33 50%
St Joseph Mercy Oakland Pontiac, MI · (248) 858-3000 HC Urea Nitrogen Body Fluid File of Mar 31, 2026 · source file $9.75 $15.00 $1.70–$15.00 35%
St Joseph Mercy Livingston Hospital Brighton, MI · (517) 545-6000 HC Urea Nitrogen Body Fluid File of Mar 31, 2026 · source file $9.75 $15.00 $1.70–$15.00 35%
St Mary Mercy Livonia Livonia, MI · (734) 655-4800 HC Urea Nitrogen Body Fluid File of Mar 31, 2026 · source file $9.75 $15.00 $1.70–$15.00 35%
Surgeons Choice Medical Center Southfield, MI BLOOD UREA NITROGEN+1 more line at this price File of May 8, 2026 · source file $10.00 $10.00 $3.49–$3.87 —
Henry Ford Health St John Hospital Detroit, MI · (313) 343-4000 UREA NITROGEN;QUAN File of Jan 1, 2026 · source file $10.08 $18.00 $5.13–$6.05 44%
Henry Ford Health St John Hospital Detroit, MI · (313) 343-4000 FIBROSIS- BUN File of Jan 1, 2026 · source file $12.45 $22.23 $5.13–$6.05 44%
Henry Ford Health Warren Hospital Warren, MI · (586) 573-5000 FIBROSIS- BUN File of Jan 1, 2026 · source file $12.45 $22.23 $5.13–$6.05 44%
Ascension River District Hospital East China Township, MI · (810) 329-7111 FIBROSIS- BUN File of Jan 1, 2026 · source file $12.45 $22.23 $5.13–$6.05 44%
McLaren Oakland Pontiac, MI · (248) 338-5000 Blood Urea Nitrogen File of Dec 31, 2025 · source file $15.75 $31.50 $2.16–$22.72 50%
McLaren Macomb Mount Clemens, MI · (586) 493-8000 Blood Urea Nitrogen File of Dec 31, 2025 · source file $16.75 $33.50 $2.16–$20.69 50%
Karmanos Cancer Center Detroit, MI · (800) 576-6266 BUN FLUID File of Dec 31, 2025 · source file $18.15 $36.30 $2.16–$27.22 50%
Corewell Health Wayne Hospital Wayne, MI · (734) 467-4175 Hc Bun+1 more line at this price File of Apr 1, 2026 · source file $19.00 $19.00 — —
Beaumont Hospital - Grosse Pointe Grosse Pointe, MI · (313) 473-1000 Hc Poc Bun+1 more line at this price File of Apr 1, 2026 · source file $19.00 $19.00 — —
Corewell Health Trenton Hospital Trenton, MI · (734) 671-3800 Hc Bun+1 more line at this price File of Apr 1, 2026 · source file $19.00 $19.00 — —
Beaumont Hospital - Taylor Taylor, MI · (313) 295-5000 Hc Poc Bun+1 more line at this price File of Apr 1, 2026 · source file $19.00 $19.00 — —
Beaumont Hospital, Troy Troy, MI · (248) 964-8800 Hc Bun+1 more line at this price File of Apr 1, 2026 · source file $19.00 $19.00 — —
Henry Ford Health St John Hospital Detroit, MI · (313) 343-4000 UREA NITROGEN QUAN File of Jan 1, 2026 · source file $19.04 $34.00 $5.13–$6.05 44%
Karmanos Cancer Center Detroit, MI · (800) 576-6266 UREA NITROGEN BLOOD AUTO+1 more line at this price File of Dec 31, 2025 · source file $20.15 $40.30 $2.16–$30.22 50%
St Joseph Mercy Livingston Hospital Brighton, MI · (517) 545-6000 HC Urea Nitrogen Pre-Dialysis+1 more line at this price File of Mar 31, 2026 · source file $22.10 $34.00 $1.70–$34.00 35%
St Mary Mercy Livonia Livonia, MI · (734) 655-4800 HC Urea Nitrogen Post-Dialysis+1 more line at this price File of Mar 31, 2026 · source file $22.10 $34.00 $1.70–$34.00 35%
St Joseph Mercy Oakland Pontiac, MI · (248) 858-3000 HC Urea Nitrogen Pre-Dialysis+1 more line at this price File of Mar 31, 2026 · source file $22.10 $34.00 $1.70–$34.00 35%
St Joseph Mercy Livingston Hospital Brighton, MI · (517) 545-6000 HC Urea Nitrogen File of Mar 31, 2026 · source file $24.70 $38.00 $1.70–$38.00 35%
St Mary Mercy Livonia Livonia, MI · (734) 655-4800 HC Urea Nitrogen File of Mar 31, 2026 · source file $24.70 $38.00 $1.70–$38.00 35%
St Joseph Mercy Oakland Pontiac, MI · (248) 858-3000 HC Urea Nitrogen File of Mar 31, 2026 · source file $24.70 $38.00 $1.70–$38.00 35%
Surgeons Choice Medical Center Southfield, MI BUN REF File of May 8, 2026 · source file $25.00 $25.00 $3.49–$3.87 —
Karmanos Cancer Center Detroit, MI · (800) 576-6266 POC BLOOD UREA NITROGEN File of Dec 31, 2025 · source file $27.20 $54.40 $2.16–$40.80 50%
Karmanos Cancer Center Detroit, MI · (800) 576-6266 BLD UREA NTRG Q File of Dec 31, 2025 · source file $31.00 $62.00 $2.16–$46.50 50%
McLaren Lapeer Region Lapeer, MI · (810) 667-5500 Blood Urea Nitrogen File of Dec 31, 2025 · source file $32.30 $64.60 $2.16–$33.85 50%
Harper University Hospital Detroit, MI · (313) 745-6211 BMP LYTES BUN+1 more line at this price File of Sep 2, 2026 · source file $39.00 $52.00 $3.95–$16.13 25%
Karmanos Cancer Center Detroit, MI · (800) 576-6266 BLD UREA NITROGEN QUAN File of Dec 31, 2025 · source file $43.90 $87.80 $2.16–$65.85 50%
VHS Detroit Receiving Hospital Detroit, MI · (313) 745-2941 BLD UREA NITROGEN QUAN File of Apr 7, 2026 · source file $45.75 $61.00 — 25%
VHS Childrens Hospital of Michigan Detroit, MI · (313) 745-5437 BLD UREA NITROGEN QUAN File of Apr 6, 2026 · source file $65.25 $87.00 — 25%
Harper University Hospital Detroit, MI · (313) 745-6211 PREDIALYSIS BUN+3 more lines at this price File of Sep 2, 2026 · source file $78.00 $104.00 $3.95–$16.13 25%
Harper University Hospital Detroit, MI · (313) 745-6211 BLD UREA NITROGEN QUAN+1 more line at this price File of Sep 2, 2026 · source file $83.25 $111.00 $3.95–$16.13 25%
Surgeons Choice Medical Center Southfield, MI BLOOD UREA NITROGEN (EPOC) File of May 8, 2026 · source file $120.00 $120.00 $3.49–$3.87 —
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More

Inpatient: lowest $3.47, median $12.88, highest $65.25 — a 18.8× difference within the same market.

As an outpatient, the same code is billed by 29 facilities here, median $10.00 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 11 of 15 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.