25 modifier for b12 injection Billing 99214 with by itself on claim. Patients will come in an office visit and get an while they are there. Providers will often 00 modifier (no charge) B12 Injections - Shell Medical
Description
Energy production (metabolism) Neurological (brain) function Vitamin B12 plays a key role in the normal functioning of the brain and nervous system

Ng, Journal (Endocrinology, Volume 142, Issue 12, December 2001, Pages 51825189)

Am Fam Physician

Some of the signs here are very familiar and are frequent side effects of FIP

Suggested Typical Dosage: Inject 1ML Intramuscularly, once a week, as directed by physician
