Vaccines CPT 90381 Inpatient — admitted to hospital

RSV antibody shot (100 mg dose) cost in San Jose, CA — inpatient

In San Jose-Sunnyvale-Santa Clara, CA, 4 hospitals list a cash price for RSV antibody shot for infants and toddlers, larger dose (1 mL, 100 mg) as an inpatient: from $365.68 to $2,202.40, with a median of $644.46. The lowest listed price is at Kaiser Foundation Hospital - Santa Clara and 1 other hospital — $278.78 less than the median here. Across California, the median is $905.19 at 66 hospitals.

Cash prices at 4 facilities across 4 cities for code 90381, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$365.68Kaiser Foundation Hospital - Santa Clara + 1 more

Median$644.46half of hospitals charge less

Highest$2,202.40in this market

Difference6.0×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in San Jose-Sunnyvale-Santa Clara, CA.

median

Lowest $365.68Highest $2,594.46

Hospitals, cheapest first

Hospital	Cash price	List price	Insurers pay	Off list
Kaiser Foundation Hospital - Santa Clara lowest Santa Clara, CA · (408) 236-6400 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE File of Apr 1, 2026 · source file	$365.68	$653.00	—	44%
Kaiser Foundation Hospital - San Jose lowest San Jose, CA · (408) 972-7000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE File of Apr 1, 2026 · source file	$365.68	$653.00	—	44%
El Camino Hospital Mountain View, CA · (650) 940-7000 nirsevimab-alip 100 mg/mL syringe 1 mL Syringe File of Apr 1, 2026 · source file	$923.23	$3,692.93	—	75%
Kaiser Foundation Hospital - San Jose San Jose, CA · (408) 972-7000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE File of Apr 1, 2026 · source file	$1,042.49	$1,861.59	—	44%
Kaiser Foundation Hospital - Santa Clara Santa Clara, CA · (408) 236-6400 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE File of Apr 1, 2026 · source file	$1,042.49	$1,861.59	—	44%
Stanford Health Care Stanford, CA · (650) 723-4000 Rsv Beyfortus 100mg/Ml Im File of Apr 1, 2026 · source file	$2,202.40	$5,506.00	—	60%
Stanford Health Care Stanford, CA · (650) 723-4000 NIRSEVIMAB-ALIP 100 MG/ML IM SYRG File of Apr 1, 2026 · source file	$2,594.46	$6,486.15	—	60%

Hospital The hospital that published the price, its city and the line exactly as written in its price file.

Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More

List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More

Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More

Off list How much lower the cash price is than the list price.

Inpatient: lowest $365.68, median $644.46, highest $2,202.40 — a 6.0× difference within the same market.

As an outpatient, the same code is billed by 5 facilities here, median $862.50 — that is the price to compare if you are not being admitted.

What it is

This is the larger dose (100 mg) of nirsevimab (Beyfortus), an antibody shot that protects infants from severe RSV. Babies weighing 5 kg (11 lb) or more in their first RSV season get this dose, and high-risk toddlers get two of them in their second season.

What the price covers

The price is for the vaccine dose. Giving the shot is usually a separate line (code 90471 for the first vaccine of the visit, 90472 for each additional one).