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Diphtheria Antibody Blood Test

North Carolina 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 October 2026.

How much does Diphtheria Antibody Blood Test cost?

$12.30

Typical negotiated rate. In North Carolina, October 2026.

Insurers have agreed to pay about $12.30 for this service. The price depends on where it is billed: about $12.02 from a physician practice, and about $21.38 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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$12.02$10.00 to $14.13
FacilityA hospital or hospital-owned outpatient department$21.38$12.30 to $39.81

How much rates vary

Facilitymedian $21 · 10th to 90th $12 to $69Professionalmedian $12 · 10th to 90th $7 to $21
$10$20$50facility $21professional $12

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
$12.30
Median
$12.30
Typical High
$39.81
Aetna
Setting
Professional
Modifier
None
Typical Low
$12.02
Median
$12.30
Typical High
$14.13
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$6.03
Median
$6.03
Typical High
$6.61
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.45
Median
$2.45
Typical High
$2.63
BCBS North Carolina
Setting
Facility
Modifier
None
Typical Low
$33.88
Median
$61.66
Typical High
$61.66
BCBS North Carolina
Setting
Professional
Modifier
None
Typical Low
$9.12
Median
$13.49
Typical High
$13.49
Cigna
Setting
Facility
Modifier
None
Typical Low
$10.72
Median
$33.11
Typical High
$69.18
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.94
Median
$10.23
Typical High
$23.44
Medcost
Setting
Professional
Modifier
None
Typical Low
$12.59
Median
$33.11
Typical High
$44.67
Medcost
Setting
Facility
Modifier
None
Typical Low
$11.75
Median
$12.30
Typical High
$30.20
Medcost
Setting
Professional
Modifier
None
Typical Low
$5.50
Median
$20.89
Typical High
$26.92
United
Setting
Professional
Modifier
None
Typical Low
$6.46
Median
$10.23
Typical High
$19.95
1 more rate 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
Ambetter
Setting
Professional
Modifier
90 · Outside lab
Typical Low
$97.72
Median
$97.72
Typical High
$97.72

Where North Carolina sits

The same service costs 3.3 times more in South Carolina 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.

North Carolina· 44th of 51

$12.30

SC $38.02MD $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.