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, Compounded Hydroxocobalamin (Vitamin B12) Injection How and When to Use & Understanding the CPT Code 96372 Approval Issues How To Self Administer Vitamin B12 Injections Invigor Medical Billing Guidelines for CPT Code 96372 The Most Common HCPCS CPT Codes in Urgent Care