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Custom Additional Dental Procedure

California rates for HCPCS D9999

A dental service that supports or adds to your main treatment but doesn't match one of the standard, commonly used procedures, so your dentist provides a detailed explanation of exactly what was done. It covers a wide range of miscellaneous services that don't fit neatly elsewhere.

Rates data updated July 2026.

How much does Custom Additional Dental Procedure cost?

$105

Typical physician fee. In California, July 2026.

Insurers have agreed to pay about $105 for this service. Most negotiated rates run $79.43 to $105.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

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 4 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $100 · 10th to 90th $100 to $105Professionalmedian $105 · 10th to 90th $1 to $398
$1$5$20$100facility $100professional $105

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
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$1.00
Median
$1.00
Typical High
$1.00
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$141.25
Median
$398.11
Typical High
$398.11
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$100.00
Median
$100.00
Typical High
$104.71
Lucent Health
Setting
Professional
Modifier
Global
Typical Low
$104.71
Median
$104.71
Typical High
$104.71
Providence
Setting
Facility
Modifier
Global
Typical Low
$1.32
Median
$1.32
Typical High
$1.32
Providence
Setting
Professional
Modifier
Global
Typical Low
$79.43
Median
$79.43
Typical High
$79.43

Where California sits

The same service costs 3235936.6 times more in Pennsylvania than in Ohio. 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.

California· 14th of 40

$105

PA $64,565OH $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.