[23] To facilitate prompt beneficiary access to the new, potentially life-saving treatment for TRD using esketamine, we created two new HCPCS G codes, G2082 and G2083, effective January 1, 2020
Vitamin B12 shots are shots that provide your body with a straight, high-dose level of vitamin B12
and Tyler et al
evaluating at week 2 of a loading phase is premature
If you are low in B12, you may also want to look into whether you may have other nutrient depletions as well, including depletions in iron, vitamin A, vitamin E, the B vitamins, potassium, and iodine , which are all required for proper thyroid function
Vitamin b12 holds great safety profile and being a water soluble vitamin, it does not accumulate in body so no chance of toxicity is there