Lab tests CPT 84100 Outpatient

Phosphorus test cost in Marietta, OH

In Marietta, OH, 2 hospitals list a cash price for phosphorus (phosphate) blood test: from $27.08 to $27.13, with a median of $27.11. The lowest listed price is at Selby General Hospital — $0.03 less than the median here. Across Ohio, the median is $35.75 at 131 hospitals.

Cash prices at 2 facilities for code 84100, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Oct 1, 2026.

Lowest$27.08Selby General Hospital
Median$27.11half pay less
Highest$27.13in this market
Difference1.0×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 Marietta, OH.

median
Lowest $27.08Highest $27.13

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Selby General Hospital lowest Marietta, OH · (740) 568-2000 Phosphorus $27.08 $45.13 — 40% Oct 1, 2026
source file
Marietta Memorial Hospital Marietta, OH · (740) 374-1400 Phosphorus $27.13 $45.21 — 40% Apr 1, 2026
source file

Outpatient: lowest $27.08, median $27.11, highest $27.13.

As an inpatient, the same code is billed by 2 facilities here, median $27.11. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

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.