Adenoidectomy cost in Ontario, CA — inpatient
In Ontario, CA, 1 hospital lists a cash price for adenoid removal (adenoidectomy), child under 12 as an inpatient: from $3,047.20 to $3,047.20, with a median of $3,047.20. Across California, the median is $11,211.20 at 41 hospitals.
Cash prices at 1 facility for code 42830, 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 - Ontario Ontario, CA ADENOIDECTOMY PRIMARY <AGE 12 | $3,047.20 | $5,860.00 | $3,217.00–$9,569.00 | 48% | — source file |
Inpatient: lowest $3,047.20, median $3,047.20, highest $3,047.20.
As an outpatient, the same code is billed by 1 facility here, median $3,047.20 — 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 and below every plan's rate. 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
An adenoidectomy removes the adenoids, tissue behind the nose, for breathing problems, snoring or repeated ear infections in children.
What the price covers
The hospital price usually covers the operating room, recovery and supplies. The surgeon and anesthesia usually bill separately.