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Blood Phosphorus (Phosphate) Test

Washington 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 $20 · 10th–90th $5$660%5%10th90th$20Professionalmedian $5 · 10th–90th $4$290%10%20%10th90th$5$2.0$10.0$50.0$200.0

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
$6.03
Median
$21.88
Typical High
$67.61
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.63
Median
$4.79
Typical High
$28.84
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$2.88
Median
$3.31
Typical High
$8.71
Asuris Northwest Health
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$5.89
Typical High
$13.18
Asuris Northwest Health
Setting
Professional
Modifier
Global
Typical Low
$3.55
Median
$4.27
Typical High
$4.79
Cigna
Setting
Facility
Modifier
Global
Typical Low
$4.90
Median
$10.00
Typical High
$15.14
Cigna
Setting
Professional
Modifier
Global
Typical Low
$2.82
Median
$4.79
Typical High
$7.59
Molina
Setting
Professional
Modifier
Global
Typical Low
$3.02
Median
$4.17
Typical High
$5.01
Pacific Source
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$4.79
Typical High
$9.33
Pacific Source
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$4.79
Typical High
$6.46
Premera BCBS
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$8.32
Typical High
$13.18
Premera BCBS
Setting
Professional
Modifier
Global
Typical Low
$4.27
Median
$4.27
Typical High
$5.75
Regence BlueShield
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$7.08
Typical High
$12.88
Regence BlueShield
Setting
Professional
Modifier
Global
Typical Low
$3.55
Median
$4.27
Typical High
$4.79
United
Setting
Facility
Modifier
Global
Typical Low
$4.47
Median
$5.75
Typical High
$5.75
United
Setting
Professional
Modifier
Global
Typical Low
$2.00
Median
$2.69
Typical High
$6.61
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$2.14
Median
$2.45
Typical High
$8.51