25 modifier for b12 injection medicare and injections: Are They Covered? CPT 96372 Injection Billing Guide
Description
Methylcobalamin vs cyanocobalamin which B12 is in the shot

Maintaining protein intake of 0.8-1.0g per pound body weight and continuing resistance training helps preserve muscle mass during treatment

I would not wait either

Since Eldervit-12 IM/IV Drip helps manage nutritional deficiencies, include foods rich in vitamins like fruits, vegetables, whole grains, and lean proteins in your diet

It can be administered intramuscularly at a 90-degree angle or intravenously by a licensed professional
