M0231 – Intravenous infusion, tocilizumabbavi, for hospitalized adult patients with covid-19 who are receiving systemic corticosteroids and require supplemental oxygen, non-invasive or invasive mechanical ventilation, or extracorporeal membrane oxygenation only, includes infusion and post administration monitoring, first dose

HCPCS Level II code · M codes: Medical Services and Quality Measures

Active code Carrier judgment

HCPCS codeM0231
Long description
Intravenous infusion, tocilizumabbavi, for hospitalized adult patients with covid-19 who are receiving systemic corticosteroids and require supplemental oxygen, non-invasive or invasive mechanical ventilation, or extracorporeal membrane oxygenation only, includes infusion and post administration monitoring, first dose
Short description
Inf tocilizumab-bavi 1st dos
Pricing indicator
54 Vaccinations
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
O1G Immunizations/Vaccinations
Added
July 1, 2026
Last change
July 1, 2026 – No change

Frequently asked questions

What is HCPCS code M0231?

M0231 is a HCPCS Level II code for intravenous infusion, tocilizumabbavi, for hospitalized adult patients with covid-19 who are receiving systemic corticosteroids and require supplemental oxygen, non-invasive or invasive mechanical ventilation, or extracorporeal membrane oxygenation only, includes infusion and post administration monitoring, first dose.

Does Medicare cover M0231?

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 M codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.