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Blood Phosphorus (Phosphate) Test

Michigan 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?

$5.25

Typical negotiated rate. In Michigan, October 2026.

Insurers have agreed to pay about $5.25 for this service. The price depends on where it is billed: about $4.47 from a physician practice, and about $10.72 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 7 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$4.47$2.00 to $5.50
FacilityA hospital or hospital-owned outpatient department$10.72$5.62 to $30.90

How much rates vary

Facilitymedian $11 · 10th to 90th $4 to $51Professionalmedian $4 · 10th to 90th $1 to $6
$1$2$5$10$20$50$100facility $11professional $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
$4.47
Median
$4.57
Typical High
$6.03
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$2.24
Median
$2.24
Typical High
$3.55
Aetna
Setting
Professional
Modifier
None
Typical Low
$4.07
Median
$4.79
Typical High
$6.17
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$2.04
Median
$2.29
Typical High
$2.40
Ambetter
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$3.80
Typical High
$3.80
BCBS Michigan
Setting
Facility
Modifier
None
Typical Low
$4.90
Median
$7.41
Typical High
$12.59
BCBS Michigan
Setting
Professional
Modifier
None
Typical Low
$1.07
Median
$1.07
Typical High
$1.07
Cigna
Setting
Professional
Modifier
None
Typical Low
$2.95
Median
$3.89
Typical High
$7.24
Health Alliance Plan
Setting
Facility
Modifier
None
Typical Low
$4.57
Median
$14.45
Typical High
$53.70
Health Alliance Plan
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$2.24
Median
$2.24
Typical High
$3.55
Health Alliance Plan
Setting
Professional
Modifier
None
Typical Low
$3.72
Median
$5.25
Typical High
$7.41
Health Alliance Plan
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$2.24
Median
$2.24
Typical High
$2.24
Priority Health
Setting
Professional
Modifier
None
Typical Low
$2.95
Median
$4.79
Typical High
$6.17
United
Setting
Facility
Modifier
None
Typical Low
$1.38
Median
$4.27
Typical High
$10.47
United
Setting
Professional
Modifier
None
Typical Low
$2.00
Median
$3.39
Typical High
$6.17
3 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
53 · Discontinued
Typical Low
$0.89
Median
$0.89
Typical High
$1.41
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$0.81
Median
$0.91
Typical High
$0.95
Health Alliance Plan
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$0.89
Median
$0.89
Typical High
$0.89

Where Michigan 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.

Michigan· 28th of 51

$5.25

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.