96365 CPT Code: Complete 2026 Billing & Reimbursement Guide 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, D64.9 ICD 10 Coding Guide for Anemia Infusion Billing What is Hizentra? Hizentra is a sterilized solution made from human plasma. It contains the antibodies to help your body protect itself against infection from various diseases. Hizentra subcutaneous infusion (for injection Does Procedure J3420 Require Prior Authorization?