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Diphtheria Antibody Blood Test

Louisiana 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?

$18.62

Typical negotiated rate. In Louisiana, October 2026.

Insurers have agreed to pay about $18.62 for this service. The price depends on where it is billed: about $12.88 from a physician practice, and about $29.51 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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$12.88$8.71 to $17.38
FacilityA hospital or hospital-owned outpatient department$29.51$19.95 to $44.67

How much rates vary

Facilitymedian $30 · 10th to 90th $16 to $62Professionalmedian $13 · 10th to 90th $6 to $22
$10$20$50$100facility $30professional $13

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
$16.22
Median
$20.89
Typical High
$77.62
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$8.13
Median
$10.47
Typical High
$38.90
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$3.24
Median
$4.17
Typical High
$15.49
Aetna
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$18.20
Typical High
$19.95
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$8.13
Median
$9.12
Typical High
$10.00
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$3.24
Median
$3.72
Typical High
$3.98
BCBS Louisiana
Setting
Facility
Modifier
None
Typical Low
$19.05
Median
$30.90
Typical High
$57.54
BCBS Louisiana
Setting
Professional
Modifier
None
Typical Low
$12.59
Median
$16.60
Typical High
$22.91
Christus
Setting
Facility
Modifier
None
Typical Low
$39.81
Median
$39.81
Typical High
$39.81
Cigna
Setting
Facility
Modifier
None
Typical Low
$16.60
Median
$33.11
Typical High
$91.20
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$10.23
Typical High
$17.38
United
Setting
Facility
Modifier
None
Typical Low
$6.46
Median
$13.80
Typical High
$15.14
United
Setting
Professional
Modifier
None
Typical Low
$6.03
Median
$8.91
Typical High
$22.91

Where Louisiana 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.

Louisiana· 11th of 51

$18.62

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.