Coding Infusions, Hydration, and Injections AAPC Knowledge Center Neo B12 Injection 1000 mcg 1 mL Box of 3 Hydroxocobalamin Vitamin B12 Injection for Energy & Defic CPT Code 20610: Joint Injection and Aspiration Billing Guide Cobalamin (vitamin B12) and Folate Deficiency Province of British Columbia Injection and Infusion Coding: What You NEED to Know! Not all injections are created equal and in the CPT Medicine section, the difference between an IV infusion, an IM injection, Billing Guidelines for CPT Code 96372