HCPCS drug code · CMS crosswalk
Vyvgart Hytrulo J-Code / HCPCS Code
In short
Vyvgart Hytrulo is billed under HCPCS J9334 — Injection, efgartigimod alfa, 2 mg and hyaluronidase-qvfc. One billing unit is 2 mg. CMS's crosswalk lists 3 Vyvgart Hytrulo NDCs under this code.
Reference
- J9334
- Injection, efgartigimod alfa, 2 mg and hyaluronidase-qvfcBilling unit: 2 mg
- Labelers
- Argenx US, 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: "lesser of" methodology applied. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files
Vyvgart Hytrulo units and claim line
Enter the dose given to get the J9334 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Vyvgart Hytrulo 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 |
|---|---|---|---|---|
| 73475-1221-01 | J9334 | Argenx US, Inc | 5 | 500 |
| 73475-1221-04 | J9334 | Argenx US, Inc | 4 × 5 | 2000 |
| 73475-3102-03 | J9334 | Argenx US, Inc | 5.6 | 504 |
Vyvgart Hytrulo: common questions
- What is the J-code for Vyvgart Hytrulo?
- Vyvgart Hytrulo is billed under HCPCS J9334 — Injection, efgartigimod alfa, 2 mg and hyaluronidase-qvfc. One billing unit is 2 mg. CMS's crosswalk lists 3 Vyvgart Hytrulo NDCs under this code.
- How many J9334 billing units are in a package of Vyvgart Hytrulo?
- CMS lists 500 to 2,000 billing units per package, depending on the NDC, where one unit is 2 mg. Units to report are based on the dose given, not the package.
- Is J9334 a CPT code?
- No. J9334 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.