go back

Methsuximide Level Test

California 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

Professionalmedian $26 · 10th to 90th $23 to $29
$20$50$100$200$500$1Kprofessional $26

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
Cigna
Setting
Professional
Modifier
None
Typical Low
$22.91
Median
$22.91
Typical High
$28.84
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$407.38
Median
$407.38
Typical High
$1,737.80