Cyanocobalamin Medicare Coverage and Co Pay Details GoodRx CPT Code 96372: Description, Usage, and Billing Guidelines (2025) Cyanocobalamin Vitamin B12 for Injection 1000 mcg ml 100 ml Bottle. 1Family 1Health Pharmacy 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, VITAMIN B12 INJECTION 1000 mcg mL