
Deficiency of b-complex components
- condition due to a deficiency of one or more of the B vitamins.

Ariboflavinosis
- condition due to a deficiency of riboflavin (vitamin B12) which is associated with inadequate consumption of riboflavin rich foods; produces lesions of skin, digestive tract and nervous system; usually part of a multiple nutrient deficiency.

Vitamin b6 deficiency
- condition due to deficiency of vitamin B6.

Other b-complex deficiencies
- state in which folate is absent or in diminished amount relative to the normal requirement of an organism or a biologic system.
- condition due to a deficiency of vitamin B12.

Unspecified vitamin b deficiency
- condition due to a deficiency of one or more of the B vitamins.