injection cpt code for b12 what is the vitamin CPT Code 20220 Guide 96372 CPT Code: Complete 2026

The shots have to be taken with a vitamin B complex, and the shot does not

Illnesses Any illness or condition that affects the digestive system can result in a B12 deficiency because the vitamin is bound to the protein molecules in your food and is released and absorbed by the body during digestion

Route: Intramuscular injection (into a muscle, such as the gluteus or deltoid) is the most frequent route for this therapy, as it allows the vitamins to be absorbed over time from the muscle depot

Therefore, it is especially common in vegans

Clinical Evidence: Research shows high-dose B12 therapy can greatly improve neurological function in severe cases

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