I never had sleep issues before this .My doctor prescribed injections because I was low on B12 but never had any symptoms
2016 Apr;21(3):145-54
If the nodule is warm, expanding, or accompanied by redness or fever, contact your provider
CPT code 96372 covers two routes only: Subcutaneous (SC) : Injection into the subcutaneous tissue layer beneath the skin, used for agents such as insulin, low-molecular-weight heparins, and some biologics Intramuscular (IM) : Injection into the muscle, used for antibiotics, anti-inflammatories, hormonal agents, and vaccines when billed under the therapeutic injection pathway Intravenous (IV) push, intra-arterial, and infusion routes are not covered by procedure code 96372 and require separate codes
Navigate the landscape of B12 Shots & B12 Injections: The Good, Bad, and Alternative