Home Drug Codes J Codes J1428 · EXONDYS-51
Updated July 1st, 2026

EXONDYS-51 J Code: J1428

Injection, eteplirsen, 10 mg

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Medicare Payment Limit ?
Not published
CMS publishes none for Q3 2026
APC Payment Limit ?
$167.425
/ HCPCS billing unit · APC 9484
ASP ?
No current ASP
Not available for Q3 2026
WAC · AWP ?
$•••.••
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NDCs Crosswalked ?
2
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Drug & Product Overview

HCPCS Descriptor Injection, eteplirsen, 10 mg
HCPCS Added Date January 1, 2018
Manufacturer Sarepta Therapeutics
Route of Administration Intravenous
Generic Status Single-Source; Branded
Dosage Type Single-Dose
Dosage Form Injection

About EXONDYS-51

Exondys-51 is a medication aligned to the HCPCS J Code: J1428 for billing, pricing, and reimbursement purposes in the United States. This Genetic Disorder medication is administered via the intravenous route and manufactured by Sarepta Therapeutics.

Manufacturers, reach out to us to add more information.

NDC Code Information

2 NDC packages are crosswalked to J1428. Package detail is available to logged-in subscribers.

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EXONDYS-51 Pricing & Reimbursement

J1428 Private Payer Reimbursement
$161.35 / HCPCS unit as of Jan 2026

National median reimbursement across major commercial payers.

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UnitedHealthcare, BlueCross BlueShield, Aetna, Cigna

EXONDYS-51 CPT Administration Codes

The below list of CPT codes is intended for informational purposes only and may not be exhaustive. CPT® codes and descriptions are copyright American Medical Association (AMA). All rights reserved.

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 Exondys-51 (J1428) on its list of HCPCS pertaining to single-dose containers. Per CMS guidelines, the JZ/JW wastage modifiers may not apply when billing J1428. Wastage billing guide →

EXONDYS-51 Medically Unlikely Edits (MUE)

The most billing units of J1428 Medicare will pay for one patient in one day, as published by CMS. 1 unit = 10 mg.

Practitioner Office & Hospital Outpatient
450 units / day
= 4,500 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 →

mg Enter a dose to see how many billing units it is and whether it is under the limit.

EXONDYS-51 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
Drug Class
Antisense Oligonucleotide [EPC]OligonucleotidesAntisense [CS]

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Frequently Asked Questions

Is there an available Exondys-51 billing and coding guide?
Our team has not identified a manufacturer-published source of billing and coding information for EXONDYS-51.
Are there any available Exondys-51 patient assistance programs?
EXONDYS-51 patient assistance information can be found through Sarepta Therapeutics. Visit Here →
Where can I find Exondys-51 prescribing information?
EXONDYS-51 prescribing information can be found at the link below: Visit Here →
Where can I find Exondys-51 side effect information?
Our team has not yet identified a source of side effects information for EXONDYS-51. Please check back in a few weeks.
Does billing EXONDYS-51 require JZ/JW wastage modifiers?
CMS does not include EXONDYS-51 (J1428) on its list of HCPCS pertaining to single-dose containers. Per CMS guidelines, the JZ/JW wastage modifiers may not apply when billing J1428. For more information, visit the link below.

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