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Surgery in the Space Behind the Upper Jaw

California rates for HCPCS 31040

Reaches and operates within the pterygomaxillary fossa, a small deep pocket behind the upper jaw through which important nerves and blood vessels pass on their way toward the base of the skull. The route in may be through the mouth, through the nose, or through a facial incision, depending on what needs to be reached. It is used to remove growths or to control bleeding from the vessels in that space.

Rates data updated July 2026.

How much does Surgery in the Space Behind the Upper Jaw cost?

$9,120

Typical facility fee. In California, July 2026.

Insurers have agreed to pay about $9,120 for this service. Most negotiated rates run $6,310 to $12,882.

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.

How much rates vary

Facilitymedian $9,772 · 10th to 90th $3,631 to $17,783Professionalmedian $912 · 10th to 90th $646 to $1,738
$100$500$2K$10Kfacility $9,772professional $912

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. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$3,981.07
Median
$10,000.00
Typical High
$22,908.68
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$6,025.60
Median
$10,232.93
Typical High
$17,782.79
Blue Shield
Setting
Facility
Modifier
Global
Typical Low
$74.13
Median
$6,309.57
Typical High
$13,182.57
Cigna
Setting
Facility
Modifier
Global
Typical Low
$891.25
Median
$3,715.35
Typical High
$4,365.16
Contra Costa Health
Setting
Professional
Modifier
Global
Typical Low
$512.86
Median
$776.25
Typical High
$1,174.90
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$707.95
Median
$933.25
Typical High
$1,778.28
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$54.95
Median
$56.23
Typical High
$16,982.44
Providence
Setting
Facility
Modifier
Global
Typical Low
$794.33
Median
$1,023.29
Typical High
$1,862.09
United
Setting
Facility
Modifier
Global
Typical Low
$4,073.80
Median
$7,585.78
Typical High
$15,135.61

Where California sits

The same service costs 20.0 times more in Indiana than in West Virginia. 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· 4th of 50

$9,120

IN $15,488WV $776

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.