LUNSUMIO J Code: J9350

Drug & Product Overview

HCPCS Descriptor Injection, mosunetuzumab-axgb, 1 mg

HCPCS Added Date July 1, 2023

Manufacturer Genentech

Route of Administration Intravenous, Subcutaneous

Generic Status Single-Source; Branded

Dosage Type Single-Dose

Dosage Form Concentrate | Injection

About LUNSUMIO

Lunsumio is a medication aligned to the HCPCS J Code: J9350 for billing, pricing, and reimbursement purposes in the United States. Classified under Misc., it is administered via the intravenous or subcutaneous routes and manufactured by Genentech.

According to CMS Drug Use Information: This medication is used to treat a certain type of cancer (follicular lymphoma). Mosunetuzumab belongs to a class of drugs known as monoclonal antibodies. It works by changing the action of your own immune system, directing it to attack cancer cells. This effect helps slow or stop the growth of cancer cells.

Disclaimer: This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional.

NDC Code Information

Based on publicly available CMS files. The list of NDCs below is not exhaustive.

NDC Code	Drug	Manufacturer	Billing Units / Pkg	Package Size
50242-0142-01	Lunsumio	Genentech, Inc.	30	30 MG / 30 ML
50242-0159-01	Lunsumio	Genentech, Inc.	1	1 MG / 1 ML
50242-0177-01	Lunsumio Velo	Genentech, Inc.	5	5 MG / 0.5 ML
50242-0201-01	Lunsumio Velo	Genentech, Inc.	45	45 MG / 1 ML

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LUNSUMIO Pricing & Reimbursement

J9350 Private Payer Reimbursement

$679.82 / HCPCS unit as of Jan 2026

National median reimbursement across major commercial payers.

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Historical Graphing and Billing Calculator

per HCPCS unit

As of Q4 2026

LUNSUMIO Claims Performance

Claims from Jan 2026 – Aug 2026

Claim Denial Rate 20.63%

Avg. Days to File 33.3days

Avg. Days to Pay 27.5days

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

Explore J9350 claims analytics on FocalPoint →

LUNSUMIO CPT Administration Codes

CPT Code	Description
96401	Chemotherapy administration, subcutaneous or intramuscular; non-hormonal anti-neoplastic
96413	Chemotherapy administration, intravenous infusion technique; up to 1 hour, single or initial substance/drug
96415 Login for More	Chemotherapy administration, intravenous infusion technique; each additional hour (List separately in addition to code for primary procedure) Login for More

JW / JZ modifiers apply

CMS has identified Lunsumio (J9350) as a HCPCS code with single-dose containers. Therefore, the JW/JZ wastage modifiers could be required for billing purposes. Wastage billing guide →

LUNSUMIO Medically Unlikely Edits (MUE)

The most billing units of J9350 Medicare will pay for one patient in one day, as published by CMS. 1 unit = 1 mg.

Practitioner Office & Hospital Outpatient

60 units / day

= 60 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 →

LUNSUMIO 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.

Follicular Lymphoma

Frequently Asked Questions

Is there an available Lunsumio billing and coding guide?

Billing and coding information for LUNSUMIO can be found through GENENTECH USA, INC.. Visit Here →

Are there any available Lunsumio patient assistance programs?

LUNSUMIO patient assistance information can be found through GENENTECH USA, INC.. Visit Here →

Where can I find Lunsumio prescribing information?

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

Where can I find Lunsumio side effect information?

Information regarding LUNSUMIO's side effects can be found at MedlinePlus Visit Here →

Does billing LUNSUMIO require JZ/JW wastage modifiers?

CMS has identified LUNSUMIO(J9350) as a HCPCS code with single-dose containers. Therefore, the JW/JZ wastage modifiers could be required for billing purposes. See CMS guidelines on use of the JZ and JW wastage modifiers below.

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