We haven't had a referral for a monthly B12 injection for a long time. I don't remember if there is a specific diagnosis that we have to have or lab results that show the deficiency. Any input would be appreciated.
D51.0 Vitamin B12 deficiency anemia due to intrinsic factor deficiency
Pernicious (congenital) anemia
Congenital intrinsic factor deficiency
The assignment of B12 deficiency anemia alone to the home health claim does not provide a supportive diagnosis for medical necessity for the administration of B12 injections by the home health agency under the Medicare part A home health benefit. CMS considers the following conditions reasonable and necessary for the administration of B12 under the home health benefit: pernicious anemia, megaloblastic anemias, macrocytic anemias, fish tapeworm anemia, gastrectomy, malabsorption syndromes such as sprue and idiopathic steatorrhea, surgical and mechanical disorders such as resection of the small intestine, strictures, anastomosis and blind loop syndrome, and posterolateral sclerosis, other neuropathies associated with pernicious anemia, during the acute phase or acute exacerbation of a neuropathy due to malnutrition and alcoholism.