j code for b12 injection HCPCS J3420: Injection, Vitamin B-12 (Cyanocobalamin), up to 1,000 mcg per Unit VITA-JEC Vitamin B12 for Dogs,

Absorbed vitamin B 12is transported via specific B 12binding proteins, transcobalamin I and II to the various tissues

Hematocrit and reticulocyte counts should be repeated daily from the fifth to seventh days of therapy and then frequently until the hematocrit is normal

Patients following such a diet, should be advised to take oral vitamin B 12regularly

This regimen should be followed by 1000 mcg monthly for life

An intradermal test dose is recommended before Cyanocobalamin Injection, USP is administered to patients suspected of being sensitive to this drug

excursions permitted to 15C to 30C (59F to 86F) [See USP Controlled Room Temperature]