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Diphtheria Antibody Blood Test

Connecticut 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?

$13.80

Typical negotiated rate. In Connecticut, July 2026.

Insurers have agreed to pay about $13.80 for this service. The price depends on where it is billed: about $13.80 from a physician practice, and about $26.92 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$13.80$10.47 to $13.80
FacilityA hospital or hospital-owned outpatient department$26.92$19.50 to $35.48

How much rates vary

Facilitymedian $27 · 10th to 90th $15 to $43Professionalmedian $14 · 10th to 90th $8 to $19
$5$10$20$50facility $27professional $14

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
$15.14
Median
$26.92
Typical High
$44.67
Aetna
Setting
Professional
Modifier
Global
Typical Low
$4.37
Median
$13.80
Typical High
$16.22
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$16.60
Median
$23.99
Typical High
$40.74
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$9.33
Typical High
$23.44
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.47
Median
$25.12
Typical High
$60.26
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$17.38
Typical High
$23.44
ConnectiCare
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$15.14
Typical High
$22.39
United
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$15.14
Typical High
$15.14
United
Setting
Professional
Modifier
Global
Typical Low
$6.46
Median
$13.18
Typical High
$26.92

Where Connecticut 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.

Connecticut· 42nd of 51

$13.80

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.