Multiple myeloma

For the 100% rating, medical records should document the initial diagnosis and show that you required a blood transfusion because of severe anemia, or that a provider prescribed parenteral B12 therapy because of central nervous system impairment. Records confirming a diagnosis of encephalopathy, myelopathy, or severe peripheral neuropathy, and showing those conditions were tied to your B12 deficiency, directly support this level. Hospital admission and discharge records are relevant here.

For the 10% rating, records showing a current prescription and ongoing use of Vitamin B12 injections, sublingual tablets, high-dose oral tablets, or nasal spray or gel support this level. Pharmacy records, treatment notes, and refill histories can all reflect continuous treatment.

For any residuals rated separately after the 100% period, records from neurology, gastroenterology, or other specialists — along with exam findings, nerve conduction studies, imaging, or lab work — can document the nature and severity of those ongoing effects. Statements from you or people who know you describing how symptoms affect daily activities and work may help show the impact of those residuals.