Sinus surgery, full ethmoid cost in Santa Rosa, CA — inpatient
In Santa Rosa-Petaluma, CA, 1 hospital lists a cash price for endoscopic sinus surgery: full ethmoid sinus opening as an inpatient: from $10,880.80 to $10,880.80, with a median of $10,880.80. Across California, the median is $10,880.80 at 42 hospitals.
Cash prices at 1 facility for code 31255, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa, CA · (707) 571-4000 NASAL/SINUS NDSC W/TOTAL ETHOIDECTOMY | $10,880.80 | $19,430.00 | $8,365.00–$26,195.00 | 44% | — source file |
Inpatient: lowest $10,880.80, median $10,880.80, highest $10,880.80.
As an outpatient, the same code is billed by 1 facility here, median $10,880.80 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This code covers endoscopic surgery through the nose to open all of the ethmoid sinuses, between the eyes.
What the price covers
The hospital price usually covers the operating room, recovery and supplies. The surgeon and anesthesia usually bill separately.