HCPCS drug code · CMS crosswalk
Ultomiris J-Code / HCPCS Code
In short
Ultomiris is billed under HCPCS J1303 — Injection, ravulizumab-cwvz, 10 mg. One billing unit is 10 mg. CMS's crosswalk lists 2 Ultomiris NDCs under this code.
Reference
- J1303
- Injection, ravulizumab-cwvz, 10 mgBilling unit: 10 mg
- Labelers
- Alexion Pharmaceuticals, Inc.
Medicare Part B payment limit
CMS ASP filePayment limit per unit$226.454
Per10 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
Ultomiris units and claim line
Enter the dose given to get the J1303 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Ultomiris 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 |
|---|---|---|---|---|
| 25682-0025-01 | J1303 | Alexion Pharmaceuticals, Inc. | 3 | 30 |
| 25682-0028-01 | J1303 | Alexion Pharmaceuticals, Inc. | 11 | 110 |
Ultomiris: common questions
- What is the J-code for Ultomiris?
- Ultomiris is billed under HCPCS J1303 — Injection, ravulizumab-cwvz, 10 mg. One billing unit is 10 mg. CMS's crosswalk lists 2 Ultomiris NDCs under this code.
- How many J1303 billing units are in a package of Ultomiris?
- CMS lists 30 to 110 billing units per package, depending on the NDC, where one unit is 10 mg. Units to report are based on the dose given, not the package.
- Is J1303 a CPT code?
- No. J1303 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.