96372 CPT Code: Injection of drug substance under skin or into muscle Cyanocobalamin Injection, Solution NDC0517 0031 25 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, CPT 96372: Billing for Therapeutic or Diagnostic Injections Medical Coding Types Of Injections Coding Clarified