HYMPAVZI C Code: C9304

HCPCS Code Discontinued C9304 was deactivated effective June 30, 2025 and is no longer valid for billing. Confirm the current replacement code before submitting claims.

Drug & Product Overview

HCPCS Descriptor Injection, marstacimab-hncq, 0.5 mg

HCPCS Added Date April 1, 2025

Manufacturer Pfizer

Route of Administration Subcutaneous

Generic Status HCPCS Discontinued

Dosage Type Single-Dose

Dosage Form Injection, Solution

About HYMPAVZI

Hympavzi is a medication aligned to the HCPCS C Code: C9304 for billing, pricing, and reimbursement purposes in the United States. This Hematology medication is administered via the subcutaneous route and manufactured by Pfizer.

Manufacturers, reach out to us to add more information.

NDC Code Information

1 NDC package is crosswalked to C9304. Package detail is available to logged-in subscribers.

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

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

HYMPAVZI CPT Administration Codes

CPT Code	Description
96372	Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); intramuscular

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 →

HYMPAVZI 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.

Hemophilia A (congenital factor VIII deficiency) Hemophilia B (congenital factor IX deficiency)

Frequently Asked Questions

Is there a manufacturer-published HYMPAVZI billing and coding guide?

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

What are the available HYMPAVZI patient assistance programs?

Our team has not identified a manufacturer-published source of patient assistance information for HYMPAVZI.

Where can I find HYMPAVZI prescribing information?

HYMPAVZI prescribing information can be found at the link below. Visit Here →

Where can I find HYMPAVZI side effect information?

Side effect information for HYMPAVZI can be found at the following source.

Does billing HYMPAVZI require JZ/JW wastage modifiers?

CMS does not include HYMPAVZI (C9304) on its list of HCPCS pertaining to single-dose containers. Per CMS guidelines, the JZ/JW wastage modifiers may not apply when billing C9304. 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.