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Blood Phosphorus (Phosphate) Test

Texas 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 October 2026.

How much does Blood Phosphorus (Phosphate) Test cost?

$5.50

Typical negotiated rate. In Texas, October 2026.

Insurers have agreed to pay about $5.50 for this service. The price depends on where it is billed: about $3.63 from a physician practice, and about $14.13 from a hospital or other facility.

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 12 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$3.63$2.63 to $5.50
FacilityA hospital or hospital-owned outpatient department$14.13$5.01 to $46.77

How much rates vary

Facilitymedian $14 · 10th to 90th $5 to $129Professionalmedian $4 · 10th to 90th $3 to $5
$2$5$10$20$50$100$200facility $14professional $4

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$2.88
Median
$4.79
Typical High
$23.99
Aetna
Setting
Professional
Modifier
None
Typical Low
$2.82
Median
$3.24
Typical High
$6.46
Ambetter
Setting
Professional
Modifier
None
Typical Low
$1.66
Median
$2.34
Typical High
$4.79
BCBS Texas
Setting
Facility
Modifier
None
Typical Low
$5.62
Median
$15.14
Typical High
$30.90
BCBS Texas
Setting
Professional
Modifier
None
Typical Low
$2.63
Median
$4.79
Typical High
$5.50
Christus
Setting
Facility
Modifier
None
Typical Low
$4.79
Median
$4.79
Typical High
$4.79
Cigna
Setting
Facility
Modifier
None
Typical Low
$4.79
Median
$10.23
Typical High
$19.50
Cigna
Setting
Professional
Modifier
None
Typical Low
$2.75
Median
$3.80
Typical High
$8.51
Health Smart
Setting
Facility
Modifier
None
Typical Low
$7.24
Median
$8.51
Typical High
$8.51
Health Smart
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$6.17
Typical High
$10.00
Lucent Health
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$6.17
Typical High
$10.00
Moda Health
Setting
Facility
Modifier
None
Typical Low
$4.79
Median
$79.43
Typical High
$218.78
Moda Health
Setting
Professional
Modifier
None
Typical Low
$2.82
Median
$3.72
Typical High
$5.75
Molina
Setting
Professional
Modifier
None
Typical Low
$3.55
Median
$3.98
Typical High
$3.98
Providence
Setting
Facility
Modifier
None
Typical Low
$3.80
Median
$6.92
Typical High
$19.05
Providence
Setting
Professional
Modifier
None
Typical Low
$2.75
Median
$3.80
Typical High
$8.13
United
Setting
Facility
Modifier
None
Typical Low
$1.38
Median
$2.00
Typical High
$10.47
United
Setting
Professional
Modifier
None
Typical Low
$2.00
Median
$2.69
Typical High
$3.89
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$2.34
Median
$2.34
Typical High
$2.45
9 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$1.58
Median
$3.39
Typical High
$12.88
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$0.65
Median
$1.35
Typical High
$5.13
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$1.41
Median
$1.58
Typical High
$2.82
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$0.56
Median
$0.63
Typical High
$1.12
Moda Health
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$1.78
Median
$3.39
Typical High
$12.88
Moda Health
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$0.72
Median
$1.35
Typical High
$5.13
Moda Health
Setting
Facility
Modifier
91 · Repeat lab test
Typical Low
$85.11
Median
$85.11
Typical High
$691.83
Moda Health
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$1.41
Median
$1.48
Typical High
$2.29
Moda Health
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$0.58
Median
$0.59
Typical High
$0.91

Where Texas sits

The same service costs 11.7 times more in Vermont than in Maryland. 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.

Texas· 21st of 51

$5.50

VT $41.69MD $3.55

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.