Q5123 – Injection, rituximab-arrx, biosimilar, (riabni), 10 mg
HCPCS Level II code · Q codes: Temporary Codes
HCPCS codeQ5123
- Long description
- Injection, rituximab-arrx, biosimilar, (riabni), 10 mg
- Short description
- Inj. riabni, 10 mg
- Pricing indicator
51Drugs- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
O1DChemotherapy- ASC
- Approved for ambulatory surgical centers
- Added
- July 1, 2021
- Last change
- July 1, 2021 – No change
Frequently asked questions
What is HCPCS code Q5123?
Q5123 is a HCPCS Level II code for injection, rituximab-arrx, biosimilar, (riabni), 10 mg.
Does Medicare cover Q5123?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby Q codes
- Q5115 – Injection, rituximab-abbs, biosimilar, (truxima), 10 mg
- Q5116 – Injection, trastuzumab-qyyp, biosimilar, (trazimera), 10 mg
- Q5117 – Injection, trastuzumab-anns, biosimilar, (kanjinti), 10 mg
- Q5118 – Injection, bevacizumab-bvzr, biosimilar, (zirabev), 10 mg
- Q5119 – Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg
- Q5120 – Injection, pegfilgrastim-bmez (ziextenzo), biosimilar, 0.5 mg
- Q5121 – Injection, infliximab-axxq, biosimilar, (avsola), 10 mg
- Q5122 – Injection, pegfilgrastim-apgf (nyvepria), biosimilar, 0.5 mg
- Q5124 – Injection, ranibizumab-nuna, biosimilar, (byooviz), 0.1 mg
- Q5125 – Injection, filgrastim-ayow, biosimilar, (releuko), 1 microgram
- Q5126 – Injection, bevacizumab-maly, biosimilar, (alymsys), 10 mg
- Q5127 – Injection, pegfilgrastim-fpgk (stimufend), biosimilar, 0.5 mg
- Q5128 – Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg
- Q5129 – Injection, bevacizumab-adcd (vegzelma), biosimilar, 10 mg
- Q5130 – Injection, pegfilgrastim-pbbk (fylnetra), biosimilar, 0.5 mg
- Q5131 – Injection, adalimumab-aacf (idacio), biosimilar, 20 mg
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.