Lab tests CPT 84100 Outpatient

Phosphorus test cost in Fairmont, WV

In Fairmont, WV, 1 hospital lists a cash price for phosphorus (phosphate) blood test: from $14.07 to $14.07, with a median of $14.07. Across West Virginia, the median is $30.35 at 34 hospitals.

Cash prices at 1 facility for code 84100, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 21, 2026 and Apr 21, 2026.

Lowest$14.07Mon Health Marion Neighborhood Hospital
Median$14.07half pay less
Highest$14.07in this market
Difference1.0×highest vs lowest

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Mon Health Marion Neighborhood Hospital White Hall, WV · (304) 333-1150 Phosphorus Level $14.07 $28.13 $3.94–$21.36 50% Apr 21, 2026
source file

Outpatient: lowest $14.07, median $14.07, highest $14.07.

Cash or insurance?

At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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.

Mon Health Marion Neighborhood Hospital White Hall, WVDirect Access Lab Phosphorus $2.50 file