Whether they work, or are safe, remains to be seen
You may want to talk with a doctor about B12 shots if you regularly experience: Persistent fatigue and lethargy Muscle aches and joint pain Loss of appetite Nausea, constipation, diarrhea, or cramping Poor memory or difficulty concentrating Mood swings Can B12 Injections Help With Mood Enhancement and Mental Clarity
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This could mean your body lacks b12
Comment: Several commenters supported our proposal to create three new G-codes to be billed as add-on services when the APCM base code (HCPCS codes G0556, G0557, and G0558) is reported by the same practitioner in the same month
They check Vitamin B12 levels often and adjust doses as needed