In the previous answer, malnutrition is classified between the ICD-10 codes E40-E46 and 025. The codes are set out as follows.
E40 Kwashiorkor
E41 Nutritional marasmus
E42 Marasmic kwashiorkor
E43 Unspecified severe protein-energy malnutrition
E44 Protein-energy malnutrition of moderate and mild degree
E45 Retarded development following protein-energy malnutrition
E46 Unspecified protein-energy malnutrition
Also:
025 Malnutrition in pregnancy
Nutritional Anaemia:
D50 Iron Deficiency anaemias
D51 Vitamin B12 deficiency anaemias
D52 Folate deficiency anaemias
D53 Other nutritional anaemias
Other nutritional deficiencies:
E50 Vitamin A deficiency
E51 Thiamine deficiency
E52 Niacin deficiency
E53 Deficiency of other group B vitamins
E54 Ascorbic acid deficiency
E55 Vitamin D deficiency
E56 Other vitamin deficiencies
E58 Dietary calcium deficiency
E59 Dietary selenium deficiency
E60 Dietary zinc deficiency
E61 Deficiency of other nutritional elements
E63 Other nutritional deficiencies