HCPCS drug code · CMS crosswalk
Gamunex-C J-Code / HCPCS Code
In short
Gamunex-C is billed under HCPCS J1561 — Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg. One billing unit is 500 mg. CMS's crosswalk lists 6 Gamunex-C NDCs under this code.
Reference
- J1561
- Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mgBilling unit: 500 mg
- Labelers
- Grifols USA, LLC
Medicare Part B payment limit
CMS ASP fileEffective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files
Gamunex-C units and claim line
Enter the dose given to get the J1561 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Gamunex-C NDCs and billing units
From CMS’s ASP NDC–HCPCS crosswalk, effective October 1, 2026 through December 31, 2026. Billing units per package are CMS’s figures for the code’s unit.
| NDC (11-digit) | HCPCS | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| 13533-0800-12 | J1561 | Grifols USA, LLC | 10 | 2 |
| 13533-0800-15 | J1561 | Grifols USA, LLC | 25 | 5 |
| 13533-0800-20 | J1561 | Grifols USA, LLC | 50 | 10 |
| 13533-0800-24 | J1561 | Grifols USA, LLC | 200 | 40 |
| 13533-0800-40 | J1561 | Grifols USA, LLC | 400 | 80 |
| 13533-0800-71 | J1561 | Grifols USA, LLC | 100 | 20 |
Gamunex-C: common questions
- What is the J-code for Gamunex-C?
- Gamunex-C is billed under HCPCS J1561 — Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg. One billing unit is 500 mg. CMS's crosswalk lists 6 Gamunex-C NDCs under this code.
- How many J1561 billing units are in a package of Gamunex-C?
- CMS lists 2 to 80 billing units per package, depending on the NDC, where one unit is 500 mg. Units to report are based on the dose given, not the package.
- Is J1561 a CPT code?
- No. J1561 is a HCPCS Level II code from CMS for the drug itself. Giving it, for example by injection or infusion, is usually reported with a separate CPT administration code.
Other codes for the same drug
- J1459Injection, immune globulin (privigen), intravenous, non-lyophilized (e.g., liquid), 500 mg
- J1551Injection, immune globulin (cutaquig), 100 mg
- J1552Injection, immune globulin (alyglo), 500 mg
- J1553Injection, immune globulin (yimmugo), 100 mg
- J1554Injection, immune globulin (asceniv), 500 mg
- J1555Injection, immune globulin (cuvitru), 100 mg
- J1556Injection, immune globulin (bivigam), 500 mg
- J1557Injection, immune globulin, (gammaplex), intravenous, non-lyophilized (e.g., liquid), 500 mg
- J1558Injection, immune globulin (xembify), 100 mg
- J1559Injection, immune globulin (hizentra), 100 mg