Home Drug Codes J Codes J1561 · GAMMAKED
Updated July 1st, 2026

GAMMAKED J Code: J1561

Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg

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Q4 2026 Medicare Payment Limit for J1561, effective October 1, 2026: $48.022 per HCPCS billing unit, down 2.0% from $49.014. From CMS's final file.

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Medicare Payment Limit ?
$49.014
/ HCPCS billing unit · Q3 2026
APC Payment Limit ?
$49.014
/ HCPCS billing unit · APC 0948
ASP ?
$•••.••
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WAC · AWP ?
$•••.••
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NDCs Crosswalked ?
12
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Drug & Product Overview

HCPCS Descriptor Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg
HCPCS Added Date January 1, 2008
Manufacturer Grifols
Route of Administration Intravenous, Subcutaneous
Generic Status Single-Source; Branded
Dosage Form Injection

About GAMMAKED

Gammaked is a medication aligned to the HCPCS J Code: J1561 for billing, pricing, and reimbursement purposes in the United States. It is an Immunoglobulin drug administered via the intravenous or subcutaneous routes and manufactured by Grifols.

According to CMS Drug Use Information: This medication is used in people with a certain type of weakened immune system (primary immune deficiency) to strengthen it and to lower the risk of infection. This medication is made from healthy human blood that has a high level of antibodies which help fight infections. Some immune globulin products are also used to increase the number of certain blood cells (platelets) in people with a certain blood disorder (idiopathic thrombocytopenic purpura-ITP). Platelets are needed to stop bleeding and to form normal blood clots. Some products may also be used to treat a certain nerve disorder (chronic inflammatory demyelinating polyneuropathy-CIDP). This disorder causes weakness and numbness/tingling/pain in the arms and legs. This medication helps improve these symptoms and prevent relapse.

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. Showing 5 of 12 NDCs — log in for the full crosswalk.

NDC Code Drug Manufacturer Billing Units / Pkg Package Size
13533-0800-12 Gamunex-C GRIFOLS USA, LLC 2 10000 MG / 100 ML
13533-0800-15 Gamunex-C GRIFOLS USA, LLC 5 10000 MG / 100 ML
13533-0800-20 Gamunex-C GRIFOLS USA, LLC 10 10000 MG / 100 ML
13533-0800-24 Gamunex-C GRIFOLS USA, LLC 40 10000 MG / 100 ML
76125-0900-10 Gammaked KEDRION BIOPHARMA, INC. 20 10000 MG / 100 ML
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GAMMAKED Pricing & Reimbursement

J1561 Private Payer Reimbursement
$50.97 / HCPCS unit as of Jan 2026

National median reimbursement across major commercial payers.

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UnitedHealthcare, BlueCross BlueShield, Aetna, Cigna

Historical Graphing and Billing Calculator

per HCPCS unit
As of Q3 2026

GAMMAKED 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)
96369 Login for More Subcutaneous infusion for therapy or prophylaxis (specify substance or drug); initial, up to 1 hour, including pump set-up and establishment of subcutaneous infusion site(s) Login for More
96370 Login for More Subcutaneous infusion for therapy or prophylaxis (specify substance or drug); each additional hour (List separately in addition to code for primary procedure) Login for More
JW / JZ modifiers apply

CMS has identified Gammaked (J1561) as a HCPCS code with single-dose containers. Therefore, the JW/JZ wastage modifiers could be required for billing purposes. Wastage billing guide →

GAMMAKED Medically Unlikely Edits (MUE)

The most billing units of J1561 Medicare will pay for one patient in one day, as published by CMS. 1 unit = 500 mg.

Practitioner Office & Hospital Outpatient
360 units / day
= 180,000 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 →

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

GAMMAKED 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.

Chronic Inflammatory Demyelinating Polyneuropathy Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) Idiopathic Thrombocytopenic Purpura Idiopathic Thrombocytopenic Purpura (ITP) Primary Humoral Immunodeficiency Primary Humoral Immunodeficiency (PI)
Drug Class
Antigen Neutralization [MoA]Human Immunoglobulin G [EPC]Immunoglobulins [CS]Passively Acquired Immunity [PE]

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Frequently Asked Questions

Is there an available Gammaked billing and coding guide?
Billing and coding information for GAMMAKED can be found through Grifols. Visit Here →
Are there any available Gammaked patient assistance programs?
Our team did not identify a source for Gammaked patient assistance information. Please reach out to our team if you feel that this is a mistake.
Where can I find Gammaked prescribing information?
GAMMAKED prescribing information can be found at the link below. Please reach out to us if you believe this information to be innacurate or out of date. Visit Here →
Where can I find Gammaked side effect information?
Our team has not yet identified a source of side effects information for GAMMAKED. Please check back in a few weeks.
Does billing GAMMAKED require JZ/JW wastage modifiers?
CMS has identified GAMMAKED(J1561) 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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