Chapter 4

E00–E89: Endocrine, Nutritional and Metabolic Diseases

Endocrine, Nutritional and Metabolic Diseases diagnostic classification updated for 2026.

Chapter Instructions

Excludes1(Not coded here. Use a different code.)
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Internal Codes
  • E50|

    Vitamin A deficiency

  • E50.0|

    Vitamin A deficiency with conjunctival xerosis

  • E50.1|

    Vitamin A deficiency with Bitot's spot and conjunctival xerosis

  • E50.2|

    Vitamin A deficiency with corneal xerosis

  • E50.3|

    Vitamin A deficiency with corneal ulceration and xerosis

  • E50.4|

    Vitamin A deficiency with keratomalacia

  • E50.5|

    Vitamin A deficiency with night blindness

  • E50.6|

    Vitamin A deficiency with xerophthalmic scars of cornea

  • E50.7|

    Other ocular manifestations of vitamin A deficiency

  • E50.8|

    Other manifestations of vitamin A deficiency

  • E50.9|

    Vitamin A deficiency, unspecified

  • E51|

    Thiamine deficiency

  • E51.1|

    Beriberi

  • E51.11|

    Dry beriberi

  • E51.12|

    Wet beriberi

  • E51.2|

    Wernicke's encephalopathy

  • E51.8|

    Other manifestations of thiamine deficiency

  • E51.9|

    Thiamine deficiency, unspecified

  • E52|

    Niacin deficiency [pellagra]

  • E53|

    Deficiency of other B group vitamins

  • E53.0|

    Riboflavin deficiency

  • E53.1|

    Pyridoxine deficiency

  • E53.8|

    Deficiency of other specified B group vitamins

  • E53.9|

    Vitamin B deficiency, unspecified

  • E54|

    Ascorbic acid deficiency

  • E55|

    Vitamin D deficiency

  • E55.0|

    Rickets, active

  • E55.9|

    Vitamin D deficiency, unspecified

  • E56|

    Other vitamin deficiencies

  • E56.0|

    Deficiency of vitamin E

  • E56.1|

    Deficiency of vitamin K

  • E56.8|

    Deficiency of other vitamins

  • E56.9|

    Vitamin deficiency, unspecified

  • E58|

    Dietary calcium deficiency

  • E59|

    Dietary selenium deficiency

  • E60|

    Dietary zinc deficiency

  • E61|

    Deficiency of other nutrient elements

  • E61.0|

    Copper deficiency

  • E61.1|

    Iron deficiency

  • E61.2|

    Magnesium deficiency

  • E61.3|

    Manganese deficiency

  • E61.4|

    Chromium deficiency

  • E61.5|

    Molybdenum deficiency

  • E61.6|

    Vanadium deficiency

  • E61.7|

    Deficiency of multiple nutrient elements

  • E61.8|

    Deficiency of other specified nutrient elements

  • E61.9|

    Deficiency of nutrient element, unspecified

  • E63|

    Other nutritional deficiencies

  • E63.0|

    Essential fatty acid [EFA] deficiency

  • E63.1|

    Imbalance of constituents of food intake

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