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Carbon Dioxide (Bicarbonate) Blood Test

Maryland rates for HCPCS 82374

This blood test measures the level of bicarbonate, a form of carbon dioxide dissolved in the blood that helps keep the body's acid-base balance in a healthy range. It's a routine part of a basic metabolic panel and helps evaluate kidney function, breathing problems, and overall chemical balance in the blood. An abnormal result can point to a range of issues, from dehydration to a lung or kidney condition.

Rates data updated July 2026.

How much does Carbon Dioxide (Bicarbonate) Blood Test cost?

$4.90

Typical negotiated rate. In Maryland, July 2026.

Insurers have agreed to pay about $4.90 for this service. The price depends on where it is billed: about $4.07 from a physician practice, and about $5.50 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 6 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$4.07$3.63 to $6.03
FacilityA hospital or hospital-owned outpatient department$5.50$3.63 to $89.13

How much rates vary

Facilitymedian $5 · 10th to 90th $3 to $112Professionalmedian $4 · 10th to 90th $3 to $16
$2$5$10$20$50$100facility $5professional $4

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
$2.69
Median
$5.50
Typical High
$112.20
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.24
Median
$4.07
Typical High
$15.85
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$1.58
Median
$3.89
Typical High
$4.79
Cigna
Setting
Facility
Modifier
Global
Typical Low
$2.57
Median
$3.39
Typical High
$6.31
Cigna
Setting
Professional
Modifier
Global
Typical Low
$2.63
Median
$4.79
Typical High
$12.02
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$4.90
Median
$5.89
Typical High
$8.51
United
Setting
Facility
Modifier
Global
Typical Low
$2.04
Median
$2.29
Typical High
$4.90
United
Setting
Professional
Modifier
Global
Typical Low
$2.19
Median
$2.88
Typical High
$4.57
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$2.40
Median
$4.79
Typical High
$4.79

Where Maryland sits

The same service costs 3.0 times more in Iowa than in Washington, DC. 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.

Maryland· 38th of 51

$4.90

IA $10.96DC $3.63

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.