96372 CPT Code: Injection of drug substance under skin or into muscle B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Does Procedure J3420 Require Prior Authorization? 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, How and When to Use & Understanding the CPT Code 96372 Approval Issues