Home › Drug Codes › J Codes › J1818 · Loargys
Updated October 1st, 2026

Loargys J Code: J1818

Injection, pegzilarginase-nbln, 0.05 mg

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Medicare Payment Limit ?
Not published
CMS publishes none for Q4 2026
APC Payment Limit ?
$298.771
/ HCPCS billing unit
ASP ?
No current ASP
Not available for Q4 2026
WAC · AWP ?
$•••.••
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NDCs Crosswalked ?
1
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Drug & Product Overview

HCPCS Descriptor Injection, pegzilarginase-nbln, 0.05 mg
HCPCS Added Date October 1, 2026
Manufacturer Immedica Pharma
Route of Administration Intravenous, Subcutaneous
Generic Status Single-Source; Branded
Dosage Type Single-Dose
Dosage Form Injection

About Loargys

Loargys is a medication aligned to the HCPCS J Code: J1818 for billing, pricing, and reimbursement purposes in the United States. This Enzyme Replacement Therapy medication is administered via the intravenous or subcutaneous routes and manufactured by Immedica Pharma.

Manufacturers, reach out to us to add more information.

NDC Code Information

1 NDC package is crosswalked to J1818. Package detail is available to logged-in subscribers.

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Loargys 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)
96372 Login for More Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); intramuscular Login for More
Not on the CMS JW / JZ list

This product is new and does not yet appear on the CMS list of HCPCS pertaining to single-dose containers. Wastage billing guide →

Loargys 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.

Hyperargininemia with Arginase 1 Deficiency (ARG1-D)

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Frequently Asked Questions

Is there an available Loargys billing and coding guide?
Our team has not identified a manufacturer-published source of billing and coding information for Loargys.
Are there any available Loargys patient assistance programs?
Our team has not identified a manufacturer-published source of patient assistance information for Loargys.
Where can I find Loargys prescribing information?
Loargys prescribing information can be found at the link below. Please reach out to us if you believe this information to be inaccurate or out of date. Visit Here →
Where can I find Loargys side effect information?
Our team has not yet identified a source of side effects information for Loargys. Please check back in a few weeks.
Does billing Loargys require JZ/JW wastage modifiers?
This product is new and does not yet appear on the CMS list of HCPCS pertaining to single-dose containers.

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.

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