At the present time, payors have not published a local coverage policy that formally declares where, when, why, and how often they will pay for PBM, so providers must file claims to obtain a determination
This includes confirmed low serum vitamin B12 levels, pernicious anaemia, malabsorption states such as coeliac disease, inflammatory bowel disease, or post-gastric or bariatric surgery, unexplained anaemia, neuropathy or neurological symptoms consistent with vitamin B12 deficiency, a long-term vegan diet with symptoms or low levels, or failure of oral vitamin B12 supplementation
Its like a small bruise that disappears in a day or two
What we know about safety comes from extrapolating each compound's individual profile and applying first-principles pharmacology