Lab tests CPT 84100 Inpatient — admitted to hospital

Phosphorus test cost in Jackson, MS — inpatient

In Jackson, MS, 8 hospitals list a cash price for phosphorus (phosphate) blood test as an inpatient: from $11.80 to $155.75, with a median of $50.12. The lowest listed price is at Magee General Hospital — $38.32 less than the median here. Across Mississippi, the median is $26.00 at 55 hospitals.

Cash prices at 8 facilities across 6 cities for code 84100, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 17, 2026 and Apr 1, 2026.

Lowest$11.80Magee General Hospital
Median$50.12half pay less
Highest$155.75in this market
Difference13.2×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 Jackson, MS.

median
Lowest $11.80Highest $155.75

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Magee General Hospital lowest Magee, MS · (601) 849-5070 PHOSPHORUS $11.80 $34.00 $4.27–$7.47 65% —
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Ochsner Scott Regional Morton, MS · (601) 732-6301 HC PHOSPHORUS $20.79 $33.00 — 37% —
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Baptist Medical Center-Yazoo Yazoo City, MS · (662) 746-2261 PHOSPHORUS LEVEL $27.06 $66.00 $25.08–$59.40 59% Feb 17, 2026
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Mississippi Baptist Medical Center Jackson, MS · (601) 968-1000 PHOSPHORUS LEVEL $34.23 $163.00 $61.94–$130.40 79% Feb 25, 2026
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Merit Health Womans Hospital Flowood, MS Phosphorus Serum $66.00 $275.00 $31.90–$220.00 76% Apr 1, 2026
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River Oaks Hospital Flowood, MS · (601) 932-1030 Phosphorus Serum $111.24 $412.00 $41.61–$370.80 73% Apr 1, 2026
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Merit Health Central Jackson, MS · (601) 376-1000 Phosphorus Serum $133.50 $445.00 $45.84–$400.50 70% Apr 1, 2026
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Crossgates River Oaks Hospital Brandon, MS · (601) 825-2811 Phosphorus Serum $155.75 $445.00 $49.40–$400.50 65% Apr 1, 2026
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Inpatient: lowest $11.80, median $50.12, highest $155.75 — a 13.2× difference within the same market.

As an outpatient, the same code is billed by 13 facilities here, median $29.20 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 6 of 7 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 phosphorus test measures phosphate in the blood. It is used with calcium for kidney disease, bone disease and parathyroid problems.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 84100 ($42.37). 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 Flowood, MSPhosphorus Body Fluid $1.72 file