b12 injections mouth ulcers Doctor explains clinical signs of Vitamin (cobalamin) deficiency | Glossitis, etc Vitamin B12 deficiency: Mouth ulcers

However, in modern times, you can easily get it via a supplement or multivitamin

ICD-10 classifies anemia by: Nutritional cause Vitamin deficiency Chronic disease Bone marrow disorder Blood loss Hemolysis Or unspecified when truly unknown Using D53.9, D51.9, and D64.9 interchangeably tells a payer that: The documentation is weak The coder ignored available labs The provider did not state the cause The claim lacks clinical reasoning That pattern triggers scrutiny

Nissen SE, Wolski KE, Prcela L, Wadden T, Buse JB, Bakris G, et al

Are Vitamin B12 Injections Good for You

Benefits are still being researched, so claims stay measured