Tendon sheath injection cost in St. Louis, MO — inpatient
In St. Louis, MO-IL, 6 hospitals list a cash price for injection into a tendon sheath or ligament (for example trigger finger) as an inpatient: from $196.24 to $1,054.08, with a median of $271.98. The lowest listed price is at Ranken Jordan Home for Convalescent Crippled Children Hospital — $75.74 less than the median here. Across Missouri, the median is $173.55 at 29 hospitals.
Cash prices at 6 facilities across 6 cities for code 20550, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 24, 2026 and Jun 12, 2026.
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 | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Ranken Jordan Home for Convalescent Crippled Children Hospital lowest Maryland Heights, MO · (314) 872-6400 Injection(s), single tendon sheath, or ligament, aponeurosis | $196.24 | $245.30 | — | 20% | Apr 24, 2026 source file |
| Mercy Hospital Lincoln Elsberry, MO Injection 1 Tendon Sheath/Ligament Aponeurosis | $225.00 | $300.00 | $120.00–$270.00 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln Elsberry, MO Injection 1 Tendon Sheath/Ligament Aponeurosis | $225.00 | $300.00 | $120.00–$270.00 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln Elsberry, MO Injection 1 Tendon Sheath/Ligament Aponeurosis | $225.00 | $300.00 | $120.00–$270.00 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln Elsberry, MO Injection 1 Tendon Sheath/Ligament Aponeurosis | $225.00 | $300.00 | $120.00–$270.00 | 25% | Jun 12, 2026 source file |
| Mercy Hospitals East Communities Washington, MO Injection 1 Tendon Sheath/Ligament Aponeurosis | $225.00 | $300.00 | $120.00–$255.00 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln Elsberry, MO Injection 1 Tendon Sheath/Ligament Aponeurosis | $225.00 | $300.00 | $120.00–$270.00 | 25% | Jun 12, 2026 source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 NJX 1 TENDON SHEATH/LIGAMENT | $318.96 | $443.00 | $88.60–$520.23 | 28% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 NJ TENDON SHEATH/LIG | $677.28 | $1,128.80 | $1,128.80 | 40% | — source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL HC INJ SINGLE TENDON/LIGAMENT | $1,054.08 | $1,464.00 | $213.37–$1,464.00 | 28% | — source file |
Inpatient: lowest $196.24, median $271.98, highest $1,054.08 — a 5.4× difference within the same market.
As an outpatient, the same code is billed by 12 facilities here, median $271.98 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 5 of 5 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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
This code covers a steroid injection into a tendon sheath or ligament, such as for trigger finger, de Quervain's tenosynovitis or plantar fasciitis.
What the price covers
The price usually covers the injection. The steroid or other medicine may be billed separately.