go back

Diphtheria Antibody Blood Test

Rhode Island rates for HCPCS 86648

A blood test that checks for antibodies the immune system makes in response to diphtheria, a serious bacterial infection that can affect the throat and airway. It helps determine whether a person has been previously exposed to diphtheria or has developed immunity, such as after vaccination. A blood sample is drawn and sent to the lab for antibody analysis.

Rates data updated July 2026.

How much does Diphtheria Antibody Blood Test cost?

$17.38

Typical negotiated rate. In Rhode Island, July 2026.

Insurers have agreed to pay about $17.38 for this service. The price depends on where it is billed: about $15.85 from a physician practice, and about $45.71 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 4 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$15.85$11.48 to $15.85
FacilityA hospital or hospital-owned outpatient department$45.71$19.50 to $87.10

How much rates vary

Facilitymedian $46 · 10th to 90th $18 to $98Professionalmedian $16 · 10th to 90th $10 to $30
$10$20$50$100facility $46professional $16

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
$25.12
Median
$61.66
Typical High
$97.72
Aetna
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$15.85
Typical High
$45.71
BCBS
Setting
Facility
Modifier
Global
Typical Low
$17.38
Median
$18.62
Typical High
$30.90
BCBS
Setting
Professional
Modifier
Global
Typical Low
$8.51
Median
$11.48
Typical High
$22.91
Cigna
Setting
Facility
Modifier
Global
Typical Low
$14.13
Median
$36.31
Typical High
$63.10
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.72
Median
$11.75
Typical High
$22.91
United
Setting
Facility
Modifier
Global
Typical Low
$18.20
Median
$18.20
Typical High
$30.20
United
Setting
Professional
Modifier
Global
Typical Low
$5.25
Median
$12.88
Typical High
$30.20

Where Rhode Island sits

The same service costs 2.8 times more in Pennsylvania 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.

Rhode Island· 18th of 51

$17.38

PA $31.62DC $11.48

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.