Renin test cost in St. Louis, MO — inpatient
In St. Louis, MO-IL, 8 hospitals list a cash price for renin blood test as an inpatient: from $76.20 to $892.21, with a median of $168.32. The lowest listed price is at Mercy Rehabilitation Hospital South — $92.12 less than the median here. Across Missouri, the median is $116.85 at 62 hospitals.
Cash prices at 8 facilities across 7 cities for code 84244, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 6, 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 St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Mercy Rehabilitation Hospital South lowest Louis, MO RENIN-PLASMA File of Mar 16, 2026 · source file | $76.20 | $76.20 | $76.20 | — |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 RENIN source file | $101.50 | $145.00 | $90.19–$3,396.04 | 30% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 RENIN File of Feb 9, 2026 · source file | $112.55 | $225.10 | $191.33–$204.84 | 50% |
| Anderson Hospital Maryville, IL · (618) 288-5711 RENIN File of Feb 6, 2026 · source file | $126.40 | $252.80 | $189.60–$227.52 | 50% |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC RENIN-90 source file | $210.24 | $292.00 | $9.74–$292.00 | 28% |
| Mercy Rehabilitation Hospital St. Louis Chesterfield, MO RENIN-PLASMA File of Mar 16, 2026 · source file | $244.01 | $244.01 | $244.01 | — |
| St Lukes Rehabilitation Hospital Chesterfield, MO Renin File of Aug 6, 2026 · source file | $418.70 | $418.70 | $293.09–$314.03 | — |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 RENIN source file | $892.21 | $1,487.01 | $1,487.01 | 40% |
Inpatient: lowest $76.20, median $168.32, highest $892.21 — a 11.7× difference within the same market.
As an outpatient, the same code is billed by 12 facilities here, median $112.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 5 of 8 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 renin test measures an enzyme from the kidneys that controls blood pressure. It is ordered with aldosterone to look for an adrenal cause of high blood pressure.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.