HCPCS drug code · CMS crosswalk
Xembify J-Code / HCPCS Code
In short
Xembify is billed under HCPCS J1558 — Injection, immune globulin (xembify), 100 mg. One billing unit is 100 mg. CMS's crosswalk lists 4 Xembify NDCs under this code.
Reference
- J1558
- Injection, immune globulin (xembify), 100 mgBilling unit: 100 mg
- Labelers
- Grifols USA, LLC
Medicare Part B payment limit
CMS ASP filePayment limit per unit$15.20
Per100 mg
Coinsurance20%
Effective 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
Xembify units and claim line
Enter the dose given to get the J1558 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Xembify 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 |
|---|---|---|---|---|
| 13533-0810-05 | J1558 | Grifols USA, LLC | 5 | 10 |
| 13533-0810-10 | J1558 | Grifols USA, LLC | 10 | 20 |
| 13533-0810-20 | J1558 | Grifols USA, LLC | 20 | 40 |
| 13533-0810-50 | J1558 | Grifols USA, LLC | 50 | 100 |
Xembify: common questions
- What is the J-code for Xembify?
- Xembify is billed under HCPCS J1558 — Injection, immune globulin (xembify), 100 mg. One billing unit is 100 mg. CMS's crosswalk lists 4 Xembify NDCs under this code.
- How many J1558 billing units are in a package of Xembify?
- CMS lists 10 to 100 billing units per package, depending on the NDC, where one unit is 100 mg. Units to report are based on the dose given, not the package.
- Is J1558 a CPT code?
- No. J1558 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
- J1559Injection, immune globulin (hizentra), 100 mg
- J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg