HCPCS Code Q5123: Injection, Rituximab-arrx, Biosimilar, (Riabni), 10 mg

Q5123 is not a CPT code but an HCPCS code for injection, rituximab-arrx, biosimilar (Riabni), 10mg. It is not a CPT code but a HCPCS Level II code used for billing this specific biosimilar.

Rituximab products are approved for the treatment of CD20-positive B-cell non-Hodgkin’s lymphoma, chronic lymphocytic leukemia, rheumatoid arthritis, granulomatosis with polyangiitis (Wegener’s), and microscopic polyangiitis.

Covered diagnoses typically include ICD codes for non-Hodgkin’s lymphoma, chronic lymphocytic leukemia, rheumatoid arthritis, granulomatosis with polyangiitis, and microscopic polyangiitis. Always verify payer-specific covered indications.

There is no CPT code for the drug itself; CPT codes are used for drug administration procedures.