Magnesium test cost in Jackson, MS — inpatient
In Jackson, MS, 3 hospitals list a cash price for magnesium blood test as an inpatient: from $4.41 to $222.21, with a median of $8.61. The lowest listed price is at Mississippi Baptist Medical Center — $4.20 less than the median here. Across Mississippi, the median is $8.80 at 15 hospitals.
Cash prices at 3 facilities across 3 cities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 17, 2026 and Apr 1, 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 Jackson, MS.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mississippi Baptist Medical Center lowest Jackson, MS MAGNESIUM RBCS | $4.41 | $21.00 | $7.98–$16.80 | 79% | Feb 25, 2026 source file |
| Baptist Medical Center-Yazoo Yazoo City, MS MAGNESIUM RBCS | $8.61 | $21.00 | $7.98–$18.90 | 59% | Feb 17, 2026 source file |
| Mississippi Baptist Medical Center Jackson, MS MAGNESIUM URINE 24 HR | $34.23 | $163.00 | $61.94–$130.40 | 79% | Feb 25, 2026 source file |
| Mississippi Baptist Medical Center Jackson, MS MAGNESIUM URINE RANDOM | $34.23 | $163.00 | $61.94–$130.40 | 79% | Feb 25, 2026 source file |
| Mississippi Baptist Medical Center Jackson, MS MAGNESIUM LEVEL | $34.23 | $163.00 | $61.94–$130.40 | 79% | Feb 25, 2026 source file |
| Baptist Medical Center-Yazoo Yazoo City, MS MAGNESIUM URINE RANDOM | $37.72 | $92.00 | $34.96–$82.80 | 59% | Feb 17, 2026 source file |
| Baptist Medical Center-Yazoo Yazoo City, MS MAGNESIUM URINE 24 HR | $37.72 | $92.00 | $34.96–$82.80 | 59% | Feb 17, 2026 source file |
| Baptist Medical Center-Yazoo Yazoo City, MS MAGNESIUM LEVEL | $37.72 | $92.00 | $34.96–$82.80 | 59% | Feb 17, 2026 source file |
| River Oaks Hospital LLC Flowood, MS Magnesium Serum | $222.21 | $823.00 | $83.12–$740.70 | 73% | Apr 1, 2026 source file |
| River Oaks Hospital LLC Flowood, MS Magnesium Urine Sendout to LabCorp | $222.21 | $823.00 | $83.12–$740.70 | 73% | Apr 1, 2026 source file |
Inpatient: lowest $4.41, median $8.61, highest $222.21 — a 50.4× difference within the same market.
As an outpatient, the same code is billed by 3 facilities here, median $8.61 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 of 3 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 magnesium test measures the level of magnesium in the blood. Doctors order it for muscle cramps or weakness, an irregular heartbeat, low potassium or calcium that does not correct, and for people on diuretics, long-term acid-reducing drugs or with kidney disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
3 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 83735 ($43.50). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| River Oaks Hospital LLC Flowood, MSMagnesium Urine | $0.88 | file |
| River Oaks Hospital LLC Flowood, MSMagnesium 24 Hr Urine w/o Creatinine AA - Send Out | $0.88 | file |
| River Oaks Hospital LLC Flowood, MSMagnesium RBC LC | $0.88 | file |