is b12 an injection Best Vitamin Sites Sublingual B12 vs. B12 Injections:

Where explicit instructions are not provided, HOPDs should report their charges under the revenue code that will result in the charges being assigned to the same cost center to which the cost of those services are assigned in the cost report. We proposed for CY 2026 to continue to assign HeartFlow (CPT code 75580) to APC 5724 (Level 4 Diagnostic Tests and Related Services)

Costa F, Toscani D, Chillemi A, Quarona V, Bolzoni M, Marchica V, et al

It covers the provider's work in administering the injection, not the drug itself

However, allergic reactions to B12 shots are extremely rare

Start with tirzepatide monotherapy, titrate to therapeutic dose (12.515mg weekly), allow 1620 weeks to reach plateau, then reassess