HCPCS drug code · CMS crosswalk
Vectibix J-Code / HCPCS Code
In short
Vectibix is billed under HCPCS J9303 — Injection, panitumumab, 10 mg. One billing unit is 10 mg. CMS's crosswalk lists 4 Vectibix NDCs under this code.
Reference
- J9303
- Injection, panitumumab, 10 mgBilling unit: 10 mg
- Labelers
- Amgen 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
Vectibix units and claim line
Enter the dose given to get the J9303 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Vectibix 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 |
|---|---|---|---|---|
| 55513-0954-01 | J9303 | Amgen Inc | 5 | 10 |
| 55513-0954-21 | J9303 | Amgen Inc | 5 | 10 |
| 55513-0956-01 | J9303 | Amgen Inc | 20 | 40 |
| 55513-0956-21 | J9303 | Amgen Inc | 20 | 40 |
Vectibix: common questions
- What is the J-code for Vectibix?
- Vectibix is billed under HCPCS J9303 — Injection, panitumumab, 10 mg. One billing unit is 10 mg. CMS's crosswalk lists 4 Vectibix NDCs under this code.
- How many J9303 billing units are in a package of Vectibix?
- CMS lists 10 to 40 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 J9303 a CPT code?
- No. J9303 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.