Brand name · Chemotherapy / HER2 Biologic
Herceptin (Trastuzumab) J-Code / HCPCS Code
In short
Herceptin is billed under HCPCS J9355 — Injection, trastuzumab, excludes biosimilar, 10 mg. One billing unit is 10 mg.
Trastuzumab biosimilars and trastuzumab with hyaluronidase have their own HCPCS codes.
Reference
- Code
- J9355 — Injection, trastuzumab, excludes biosimilar, 10 mgMed-Code curated
- Billing unit
- 10 mg
- Same code in the directory
- Trastuzumab
- Pharmacologic class
- HER2/neu Receptor Antagonist; EndoglycosidaseFrom the FDA listings below
- Labelers
- Genentech, Inc.
- J-code category
- Chemotherapy / HER2 Biologic
FDA-listed products
Finished products whose name and route match this directory entry.
| Product | Strength | Form · route | Labeler | Product NDC |
|---|---|---|---|---|
| Herceptintrastuzumab | Trastuzumab 150 mg/7.4mL | Injection, Powder, Lyophilized, For solutionIntravenous | Genentech, Inc. | 50242-132 |
Other products with this name
Same name but a different route, formulation or combination — the code above does not apply to these.
| Product | Strength | Form · route | Labeler | Product NDC |
|---|---|---|---|---|
| Herceptin Hylectatrastuzumab and hyaluronidase-oysk | Trastuzumab 600 mg/5mL; Hyaluronidase (Human recombinant) 10000 U/5mL | Injection, SolutionSubcutaneous | Genentech, Inc. | 50242-077 |
NDCs billed under J9355
CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 1 NDC to J9355 for Herceptin. Billing units per package are CMS’s figures for this code’s unit.
| Drug | NDC (11-digit) | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| Herceptin | 50242-0132-01 | Genentech, Inc. | 1 | 15 |