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Blood Phosphorus (Phosphate) Test

Illinois rates for HCPCS 84100

Measures the amount of phosphate, a mineral the body uses for bone strength, energy production and cell function, in a blood sample. Levels drift when the kidneys are not clearing phosphate properly, when the parathyroid glands are over- or under-active, or when vitamin D is out of balance, so it is usually read alongside calcium. Measuring phosphate in a urine sample is a separate test.

Rates data updated July 2026.

How much does Blood Phosphorus (Phosphate) Test cost?

$11.75

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $11.75 for this service. The price depends on where it is billed: about $4.27 from a physician practice, and about $44.67 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 7 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$4.27$3.63 to $5.75
FacilityA hospital or hospital-owned outpatient department$44.67$10.96 to $72.44

How much rates vary

Facilitymedian $45 · 10th to 90th $7 to $91Professionalmedian $4 · 10th to 90th $3 to $9
$2$10$50$200facility $45professional $4

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$7.08
Median
$46.77
Typical High
$91.20
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.63
Median
$4.79
Typical High
$8.91
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$2.34
Median
$2.88
Typical High
$6.03
BCBS
Setting
Facility
Modifier
Global
Typical Low
$6.46
Median
$16.22
Typical High
$48.98
BCBS
Setting
Professional
Modifier
Global
Typical Low
$3.24
Median
$3.47
Typical High
$3.63
Cigna
Setting
Facility
Modifier
Global
Typical Low
$5.25
Median
$11.22
Typical High
$22.39
Cigna
Setting
Professional
Modifier
Global
Typical Low
$2.95
Median
$5.50
Typical High
$8.91
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$9.12
Typical High
$34.67
Hally Health
Setting
Facility
Modifier
Global
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$6.17
Typical High
$6.17
Molina
Setting
Professional
Modifier
Global
Typical Low
$2.34
Median
$2.34
Typical High
$2.63
United
Setting
Facility
Modifier
Global
Typical Low
$2.82
Median
$4.79
Typical High
$9.55
United
Setting
Professional
Modifier
Global
Typical Low
$2.00
Median
$3.02
Typical High
$4.79

Where Illinois sits

The same service costs 9.8 times more in West Virginia than in New Mexico. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Illinois· 10th of 51

$11.75

WV $43.65NM $4.47

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.