HCPCS J-code
J9355: trastuzumab
Trastuzumab 10 mg (reference biologic)
Code
J9355
Generic
trastuzumab
Brands
Herceptin
Drug class
Biologic drugs (mAbs and biosimilars)
Common denial patterns
- Step therapy with biosimilars (Kanjinti, Trazimera, Ogivri, Ontruzant)
Frequently asked questions
What is HCPCS J9355?
Trastuzumab 10 mg (reference biologic)
Why does insurance commonly deny J9355?
Step therapy with biosimilars (Kanjinti, Trazimera, Ogivri, Ontruzant).
What brand-name drug uses J9355?
Herceptin.
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