VILTEPSO J Code: J1427

Drug & Product Overview

HCPCS Descriptor Injection, viltolarsen, 10 mg

HCPCS Added Date April 1, 2021

Manufacturer NS Pharma

Route of Administration Intravenous

Generic Status Single-Source; Branded

Dosage Type Single-Dose

Dosage Form Injection, Solution

About VILTEPSO

Viltepso is a medication aligned to the HCPCS J Code: J1427 for billing, pricing, and reimbursement purposes in the United States. Classified under Genetic Disorder, it is administered via the intravenous route and manufactured by NS Pharma.

Manufacturers, reach out to us to add more information.

NDC Code Information

1 NDC package is crosswalked to J1427. Package detail is available to logged-in subscribers.

NDC Code	Drug	Manufacturer	Billing Units / Pkg	Package Size
•••••-••••-•• Log in to view	VILTEPSO

Login to view 1 NDC package View pricing, complete NDC-to-HCPCS alignments, and package details.

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VILTEPSO Pricing & Reimbursement

J1427 Private Payer Reimbursement

$56.87 / HCPCS unit as of Jan 2026

National median reimbursement across major commercial payers.

Create an account on PayerPrice for more information →

VILTEPSO Claims Performance

Claims from Jan 2026 – Aug 2026

Claim Denial Rate 0%

Avg. Days to File 6.8days

Avg. Days to Pay 33.5days

Real-world claims performance from FocalPoint, OnPoint Oncology's reimbursement analytics platform, with claims data accrued at the clearing house level.

Explore J1427 claims analytics on FocalPoint →

VILTEPSO CPT Administration Codes

CPT Code	Description
96365	Intravenous infusion, for therapy, prophylaxis, or diagnosis (specify substance or drug); initial, up to 1 hour
96366	Intravenous infusion, for therapy, prophylaxis, or diagnosis (specify substance or drug); each additional hour (List separately in addition to code for primary procedure)

Not on the CMS JW / JZ list

CMS does not include Viltepso (J1427) on its list of HCPCS pertaining to single-dose containers. Per CMS guidelines, the JZ/JW wastage modifiers may not apply when billing J1427. Wastage billing guide →

VILTEPSO Medically Unlikely Edits (MUE)

The most billing units of J1427 Medicare will pay for one patient in one day, as published by CMS. 1 unit = 10 mg.

Practitioner Office & Hospital Outpatient

1,200 units / day

= 12,000 mg per day

MAI 3 · Date of Service Edit: Clinical. Per-day limit based on clinical expectations; excess units are denied but may be appealed with documentation of medical necessity. See all MUE limits →

VILTEPSO Clinical Information

Indications and drug classification.

Treated Diseases & Conditions

This list of indications is not exhaustive and may be subject to errors. The information on BuyandBill.com is intended for informational purposes only and should not be used for medical advice.

Duchenne muscular dystrophy (DMD) amenable to exon 53 skipping

Frequently Asked Questions

Is there an available Viltepso billing and coding guide?

Our team has not identified a manufacturer-published source of billing and coding information for VILTEPSO.

Are there any available Viltepso patient assistance programs?

VILTEPSO patient assistance information can be found through NS Pharma. Visit Here →

Where can I find Viltepso prescribing information?

VILTEPSO prescribing information can be found at the link below: Visit Here →

Where can I find Viltepso side effect information?

Our team has not yet identified a source of side effects information for VILTEPSO. Please check back in a few weeks.

Does billing VILTEPSO require JZ/JW wastage modifiers?

CMS does not include VILTEPSO (J1427) on its list of HCPCS pertaining to single-dose containers. Per CMS guidelines, the JZ/JW wastage modifiers may not apply when billing J1427. For more information, visit the link below.

About BuyandBill.com:

The BuyandBill.com team is dedicated to delivering high-quality coding and billing information for office-administered drugs. We continuously research HCPCS-coded medications to expand our resources and ensure data accuracy. Manufacturers: click here to sponsor your medication, and we will ensure the most accurate and detailed information is displayed.