HCPCS drug code · CMS crosswalk
Vimizim J-Code / HCPCS Code
In short
Vimizim is billed under HCPCS J1322 — Injection, elosulfase alfa, 1 mg. One billing unit is 1 mg. CMS's crosswalk lists 1 Vimizim NDC under this code.
Reference
- J1322
- Injection, elosulfase alfa, 1 mgBilling unit: 1 mg
- Labelers
- BioMarin Pharmaceutical Inc.
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. CMS note: Inflation-adjusted coinsurance. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files
Vimizim units and claim line
Enter the dose given to get the J1322 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Vimizim 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 |
|---|---|---|---|---|
| 68135-0100-01 | J1322 | BioMarin Pharmaceutical Inc. | 5 | 5 |
Vimizim: common questions
- What is the J-code for Vimizim?
- Vimizim is billed under HCPCS J1322 — Injection, elosulfase alfa, 1 mg. One billing unit is 1 mg. CMS's crosswalk lists 1 Vimizim NDC under this code.
- How many J1322 billing units are in a package of Vimizim?
- CMS lists 5 billing units per package, depending on the NDC, where one unit is 1 mg. Units to report are based on the dose given, not the package.
- Is J1322 a CPT code?
- No. J1322 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.