Lets do my first B12 injection together This is something Ive been nervous about for a long time, but today I finally did itand it honestly wasnt bad at all. I used the Union Medico needle guide Lets do my first B12 injection together This is something Ive been nervous about for a long time, but today I finally did itand it honestly wasnt bad at all. I used the Union Medico needle guide CPT 96372: Injection Billing Made Simple for Medical Practices Does Medicare Cover B12 Shots? Medicare.org Vitamin B12 Injections and Weight Loss: How Does it Work?