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Unlisted Chemistry Laboratory Test

Louisiana rates for HCPCS 84999

A chemistry measurement on blood, urine, or another body fluid that has no standard named entry of its own. The laboratory measures a specific chemical substance and supplies a written description of what was tested and how. It is used for uncommon or newly developed chemical analyzes.

Rates data updated July 2026.

How much does Unlisted Chemistry Laboratory Test cost?

$135

Typical negotiated rate. In Louisiana, July 2026.

Insurers have agreed to pay about $135 for this service. The price depends on where it is billed: about $135 from a physician practice, and about $56.23 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 5 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$135$48.98 to $275
FacilityA hospital or hospital-owned outpatient department$56.23$9.55 to $251

How much rates vary

Facilitymedian $56 · 10th to 90th $3 to $389Professionalmedian $135 · 10th to 90th $49 to $275
$10$100$1Kfacility $56professional $135

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
$208.93
Median
$251.19
Typical High
$398.11
Aetna
Setting
Professional
Modifier
Global
Typical Low
$48.98
Median
$134.90
Typical High
$275.42
BCBS
Setting
Facility
Modifier
Global
Typical Low
$2.00
Median
$9.12
Typical High
$28.84
Christus
Setting
Facility
Modifier
Global
Typical Low
$9.55
Median
$9.55
Typical High
$9.55
Cigna
Setting
Facility
Modifier
Global
Typical Low
$44.67
Median
$56.23
Typical High
$123.03
Cigna
Setting
Professional
Modifier
Global
Typical Low
$3,019.95
Median
$3,019.95
Typical High
$3,715.35
United
Setting
Facility
Modifier
Global
Typical Low
$2.14
Median
$2.14
Typical High
$977.24
United
Setting
Professional
Modifier
Global
Typical Low
$28.18
Median
$28.18
Typical High
$28.84

Where Louisiana sits

The same service costs 871.0 times more in South Dakota than in Kentucky. 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.

Louisiana· 16th of 51

$135

SD $5,012KY $5.75

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.