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Custom Root Canal Procedure

Washington rates for HCPCS D3999

A root canal or tooth-nerve related treatment that doesn't match one of the standard, commonly used procedures, so your dentist provides a detailed explanation of exactly what was performed. It's used for unusual cases involving the inside of a tooth that need an individualized approach.

Rates data updated July 2026.

How much does Custom Root Canal Procedure cost?

$2,570

Typical facility fee. In Washington, July 2026.

Insurers have agreed to pay about $2,570 for this service. Most negotiated rates run $1,413 to $7,586.

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 3 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $4,677 · 10th to 90th $1,413 to $7,943Professionalmedian $50 · 10th to 90th $32 to $79
$50$200$1K$5Kfacility $4,677professional $50

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Kaiser Permanente
Setting
Facility
Modifier
Global
Typical Low
$1,412.54
Median
$4,677.35
Typical High
$7,943.28
Molina
Setting
Professional
Modifier
Global
Typical Low
$32.36
Median
$50.12
Typical High
$79.43
Pacific Source
Setting
Facility
Modifier
Global
Typical Low
$2,137.96
Median
$2,137.96
Typical High
$2,137.96

Where Washington sits

The same service costs 3235936.6 times more in Pennsylvania than in Connecticut. 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· 6th of 37

$2,570

PA $64,565CT $0.02

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.