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2 Wernicke's encephalopathy
- E51.8 Other manifestations of thiamine deficiency
- E51.9 Thiamine deficiency, unspecified
E52 Niacin deficiency [pellagra]
- Includes: niacin (-tryptophan) deficiency
- nicotinamide deficiency
- pellagra (alcoholic)
- Excludes1: sequelae of niacin deficiency (E64.8)
E53 Deficiency of other B group vitamins
- Excludes1: sequelae of vitamin B deficiency (E64.8)
- E53.0 Riboflavin deficiency
- Ariboflavinosis
- Vitamin B2 deficiency
- E53.1 Pyridoxine deficiency
- Vitamin B6 deficiency
- Excludes1: pyridoxine-responsive sideroblastic anemia (D64.3)
- E53.8 Deficiency of other specified B group vitamins
- Biotin deficiency
- Cyanocobalamin deficiency
- Folate deficiency
- Folic acid deficiency
- Pantothenic acid deficiency
- Vitamin B12 deficiency
- Excludes1: folate deficiency anemia (D52.-)
- vitamin B12 deficiency anemia (D51.-)
- E53.9 Vitamin B deficiency, unspecified
E54 Ascorbic acid deficiency
- Includes: deficiency of vitamin C
- scurvy
- Excludes1: scorbutic anemia (D53.2)
- sequelae of vitamin C deficiency (E64.2)
E55 Vitamin D deficiency
- Excludes1: adult osteomalacia (M83.-)
- osteoporosis (M80-)
- sequelae of rickets (E64.3)
- E55.0 Rickets, active
- Infantile Osteomalacia
- Juvenile Osteomalacia
- Excludes1: celiac rickets (K90.0)
- Crohn's rickets (K50.-)
- hereditary vitamin D-dependent rickets (E83.32)
- inactive
