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Methsuximide Level Test

Washington rates for HCPCS 83858

Measures the amount of methsuximide in a sample. Methsuximide is an anti-seizure medicine, and the result helps a prescriber judge whether the amount in the body is enough to control seizures without causing side effects.

Rates data updated October 2026.

How much rates vary

Facilitymedian $35 · 10th to 90th $30 to $40Professionalmedian $23 · 10th to 90th $23 to $29
$50facility $35professional $23

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Asuris Northwest Health
Setting
Facility
Modifier
None
Typical Low
$29.51
Median
$34.67
Typical High
$39.81
Cigna
Setting
Professional
Modifier
None
Typical Low
$22.91
Median
$22.91
Typical High
$28.84