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Blood Phosphorus (Phosphate) Test

Nationwide 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.

Facilitymedian $26 · 10th–90th $5$1000%5%10th90th$26Professionalmedian $5 · 10th–90th $3$140%20%10th90th$5$0.1$1.0$10.0$100.0$1.0K$10.0K$100.0K

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$5.62
Median
$31.62
Typical High
$102.33
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.55
Median
$4.57
Typical High
$16.22
BCBS
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$7.08
Typical High
$21.88
BCBS
Setting
Professional
Modifier
Global
Typical Low
$2.34
Median
$2.88
Typical High
$9.55
Cigna
Setting
Facility
Modifier
Global
Typical Low
$3.89
Median
$9.55
Typical High
$22.39
Cigna
Setting
Professional
Modifier
Global
Typical Low
$2.82
Median
$5.89
Typical High
$12.02
United
Setting
Facility
Modifier
Global
Typical Low
$2.19
Median
$4.79
Typical High
$7.08
United
Setting
Professional
Modifier
Global
Typical Low
$2.00
Median
$2.82
Typical High
$7.94