vitamin b12 injections for cancer B12: the essential nutrient with a complicated link B12 Injections | Vitamin B12
Description
Don't apply Modifier 59 to unbundle a procedure that NCCI already includes in another code

This injection is commonly prescribed to treat or prevent vitamin B12 deficiency, which can occur due to factors such as poor dietary intake, malabsorption issues, or certain medical conditions

Even if you do get a Doctor to order your Vitamin B12 level they may still say its normal or insist that taking Vitamin B12 is unnecessary and unlikely to help

Jan 2021;94(1):118-120

In that situation the responsible default is not assume it is fine unless proven harmful
