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Dibucaine Number Test

Washington rates for HCPCS 82638

A laboratory test that checks how a particular blood enzyme behaves when a chemical is added to it, in order to identify people who carry an unusual form of that enzyme. Those with the unusual form break down certain muscle-relaxing anesthetic drugs very slowly and can stay paralyzed and need breathing support far longer than expected. It is used after such a reaction and to check relatives.

Rates data updated October 2026.

How much does Dibucaine Number Test cost?

$11.48

Typical negotiated rate. In Washington, October 2026.

Insurers have agreed to pay about $11.48 for this service. The price depends on where it is billed: about $10.96 from a physician practice, and about $18.20 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 9 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$10.96$7.94 to $12.30
FacilityA hospital or hospital-owned outpatient department$18.20$13.49 to $24.55

How much rates vary

Facilitymedian $18 · 10th to 90th $12 to $34Professionalmedian $11 · 10th to 90th $5 to $15
$10$20$50facility $18professional $11

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
$11.48
Median
$11.48
Typical High
$38.02
Aetna
Setting
Professional
Modifier
None
Typical Low
$11.48
Median
$11.48
Typical High
$14.79
Asuris Northwest Health
Setting
Facility
Modifier
None
Typical Low
$9.12
Median
$14.13
Typical High
$33.88
Asuris Northwest Health
Setting
Professional
Modifier
None
Typical Low
$9.12
Median
$10.96
Typical High
$12.30
Cigna
Setting
Facility
Modifier
None
Typical Low
$12.88
Median
$22.39
Typical High
$31.62
Cigna
Setting
Professional
Modifier
None
Typical Low
$7.59
Median
$12.88
Typical High
$17.38
Molina
Setting
Professional
Modifier
None
Typical Low
$7.76
Median
$10.72
Typical High
$10.72
Pacific Source
Setting
Facility
Modifier
None
Typical Low
$12.30
Median
$14.79
Typical High
$24.55
Premera BCBS
Setting
Facility
Modifier
None
Typical Low
$12.30
Median
$21.38
Typical High
$33.88
Premera BCBS
Setting
Professional
Modifier
None
Typical Low
$10.96
Median
$10.96
Typical High
$14.79
Regence BlueShield
Setting
Facility
Modifier
None
Typical Low
$12.30
Median
$20.42
Typical High
$33.88
Regence BlueShield
Setting
Professional
Modifier
None
Typical Low
$9.12
Median
$10.96
Typical High
$12.30
United
Setting
Facility
Modifier
None
Typical Low
$12.30
Median
$14.79
Typical High
$14.79
United
Setting
Professional
Modifier
None
Typical Low
$5.13
Median
$5.50
Typical High
$13.80
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$5.50
Median
$12.30
Typical High
$21.88
2 more rates 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
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$5.75
Median
$5.75
Typical High
$7.41
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.29
Median
$2.29
Typical High
$2.95

Where Washington sits

The same service costs 3.2 times more in Kansas 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.

Washington· 33rd of 51

$11.48

KS $28.84MD $9.12

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.