HCPCS J3399

Injection, onasemnogene abeparvovec-xioi, per treatment, up to 5x10^15 vector genomes

Current code2 hospitals with prices

Description from CMS's HCPCS Level II code file.

What Washington hospitals publish for this code

Unknown: The source file doesn't say which population this rate applies to.

Prices for HCPCS J3399 by hospital
Hospital	Unknown rates (lowest – highest)	Cash price	List price (before discounts)
Mary Bridge Children's HospitalTacomaFile dated 2026-08-27	—	$742,424 – $761,919	$1,856,060 – $1,904,798
Seattle Children's HospitalSeattle	$719,225 – $1,941,1723 plans	$719,225 – $1,941,172	$719,225 – $1,941,172

Lowest and highest amounts each hospital lists for this code during a hospital stay, including lines it lists for both settings or without saying which. A doctor’s fee is shown separately when the hospital lists one with the code. “At least” means plans were counted in more than one group and some may be the same plan. This is one line of a bill; most care brings several.

Medicare (traditional) reference

Only for people on original Medicare. These are CMS’s 2026 amounts. They aren’t what private insurance or cash patients pay.

Hospital outpatient payment (national): $2,679,817 (APC 9141)