Tonsil and adenoid removal, child under 12 in St. Louis, MO-IL
In St. Louis, MO-IL, 3 hospitals list a cash price for Tonsil and adenoid removal, child under 12: from $4,030.17 to $5,909.03, with a median of $5,813.33. The lowest listed price is at Mercy Hospital South.
Cash prices at 3 facilities across 2 cities for code 42820, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Mercy Hospital South lowest Saint Louis, MO Tonsillectomy & Adenoidectomy <Age 12 | $4,030.17 | $6,200.26 | 35% | — source file |
| Mercy Hospitals East Communities dba Mercy Hospital St Louis Saint Louis, MO Tonsillectomy & Adenoidectomy <Age 12 | $5,813.33 | $8,943.59 | 35% | — source file |
| Mercy Hospitals East Communities dba Mercy Hospital Washington Washington, MO Tonsillectomy & Adenoidectomy <Age 12 | $5,909.03 | $9,090.82 | 35% | — source file |
Outpatient: lowest $4,030.17, median $5,813.33, highest $5,909.03 — a 1.5× difference within the same market.
What it is
This is surgery to remove both the tonsils and the adenoids in a child younger than 12. It is commonly done for repeated throat infections or for snoring and breathing problems during sleep caused by large tonsils and adenoids.
What the price covers
The facility price covers the operating room and recovery. The surgeon's fee and anesthesia are usually billed separately.