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Frontal Sinus Obliteration Through A Bone Flap

Massachusetts rates for HCPCS 31084

An operation on the frontal sinus, the air space in the forehead above the eyes, in which a section of forehead bone is temporarily lifted as a hinged flap to open the sinus. The lining is stripped out and the cavity is filled in so it can no longer collect mucus or become infected, and the bone is then replaced. It is used for long-standing infection, a mucus-filled sac, or a growth.

Rates data updated July 2026.

How much does Frontal Sinus Obliteration Through A Bone Flap cost?

$1,950

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $1,950 for this service. The price depends on where it is billed: about $1,445 from a physician practice, and about $3,631 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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 7 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$1,445$1,202 to $2,570
FacilityA hospital or hospital-owned outpatient department$3,631$2,692 to $5,129

How much rates vary

Facilitymedian $3,631 · 10th to 90th $1,445 to $8,913Professionalmedian $1,445 · 10th to 90th $955 to $3,388
$100.0$1.0K$10.0Kfacility $3,631professional $1,445

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
$1,949.84
Median
$3,388.44
Typical High
$5,248.07
Aetna
Setting
Professional
Modifier
Global
Typical Low
$891.25
Median
$1,174.90
Typical High
$3,311.31
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$2,951.21
Median
$7,585.78
Typical High
$33,884.42
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$1,071.52
Median
$1,659.59
Typical High
$8,709.64
Cigna
Setting
Professional
Modifier
Global
Typical Low
$707.95
Median
$2,041.74
Typical High
$3,467.37
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$1,122.02
Median
$1,621.81
Typical High
$4,897.79
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$1,230.27
Median
$1,513.56
Typical High
$2,089.30
Harvard Pilgrim
Setting
Facility
Modifier
Global
Typical Low
$3,019.95
Median
$6,165.95
Typical High
$13,182.57
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$1,122.02
Median
$1,995.26
Typical High
$3,388.44
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$2,951.21
Median
$7,585.78
Typical High
$33,884.42
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$1,071.52
Median
$1,659.59
Typical High
$8,709.64
United
Setting
Facility
Modifier
Global
Typical Low
$2,511.89
Median
$6,309.57
Typical High
$13,803.84
United
Setting
Professional
Modifier
Global
Typical Low
$1,318.26
Median
$2,238.72
Typical High
$4,265.80

Where Massachusetts sits

The same service costs 5.9 times more in California than in Delaware. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Massachusetts $1,950 · 24th of 51
CA $7,079DE $1,202

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.