In short

Rituxan is billed under HCPCS J9312 — Injection, rituximab, 10 mg. One billing unit is 10 mg.

Rituximab biosimilars and rituximab with hyaluronidase have their own HCPCS codes.

J9312 code details

Reference

Code
J9312 — Injection, rituximab, 10 mgMed-Code curated
Billing unit
10 mg
Same code in the directory
Rituximab
Pharmacologic class
CD20-directed Cytolytic Antibody; EndoglycosidaseFrom the FDA listings below

FDA-listed products

Finished products whose name and route match this directory entry.

Products matching Rituxan in Med-Code's directory
ProductStrengthForm · routeLabelerProduct NDC
RituxanrituximabRituximab 10 mg/mLInjection, SolutionIntravenousGenentech, Inc.50242-051
RituxanrituximabRituximab 10 mg/mLInjection, SolutionIntravenousGenentech, Inc.50242-053

Other products with this name

Same name but a different route, formulation or combination — the code above does not apply to these.

Other products named Rituxan
ProductStrengthForm · routeLabelerProduct NDC
Rituxan Hycelarituximab and hyaluronidaseRituximab 120 mg/mL; Hyaluronidase (Human recombinant) 2000 U/mLInjection, SolutionSubcutaneousGenentech, Inc.50242-108
Rituxan Hycelarituximab and hyaluronidaseRituximab 120 mg/mL; Hyaluronidase (Human recombinant) 2000 U/mLInjection, SolutionSubcutaneousGenentech, Inc.50242-109

NDCs billed under J9312

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 2 NDCs to J9312 for Rituxan. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J9312 in the CMS ASP crosswalk
DrugNDC (11-digit)LabelerPackageBilling units per package
Rituxan50242-0051-21Genentech, Inc.1010
Rituxan50242-0053-06Genentech, Inc.5050

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