All ICD10 Codes
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)
All CodesBillable Only
Internal Codes
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  • E87—

    Other disorders of fluid, electrolyte and acid-base balance

  • E87.0—

    Hyperosmolality and hypernatremia

  • E87.1—

    Hypo-osmolality and hyponatremia

  • E87.2—

    Acidosis

  • E87.20—

    Acidosis, unspecified

  • E87.21—

    Acute metabolic acidosis

  • E87.22—

    Chronic metabolic acidosis

  • E87.29—

    Other acidosis

  • E87.3—

    Alkalosis

  • E87.4—

    Mixed disorder of acid-base balance

  • E87.5—

    Hyperkalemia

  • E87.6—

    Hypokalemia

  • E87.7—

    Fluid overload

  • E87.70—

    Fluid overload, unspecified

  • E87.71—

    Transfusion associated circulatory overload

  • E87.79—

    Other fluid overload

  • E87.8—

    Other disorders of electrolyte and fluid balance, not elsewhere classified

  • E88—

    Other and unspecified metabolic disorders

  • E88.0—

    Disorders of plasma-protein metabolism, not elsewhere classified

  • E88.01—

    Alpha-1-antitrypsin deficiency

  • E88.02—

    Plasminogen deficiency

  • E88.09—

    Other disorders of plasma-protein metabolism, not elsewhere classified

  • E88.1—

    Lipodystrophy, not elsewhere classified

  • E88.10—

    Lipodystrophy, unspecified

  • E88.11—

    Partial lipodystrophy

  • E88.12—

    Generalized lipodystrophy

  • E88.13—

    Localized lipodystrophy

  • E88.14—

    HIV-associated lipodystrophy

  • E88.19—

    Other lipodystrophy, not elsewhere classified

  • E88.2—

    Lipomatosis, not elsewhere classified

  • E88.3—

    Tumor lysis syndrome

  • E88.4—

    Mitochondrial metabolism disorders

  • E88.40—

    Mitochondrial metabolism disorder, unspecified

  • E88.41—

    MELAS syndrome

  • E88.42—

    MERRF syndrome

  • E88.43—

    Disorders of mitochondrial tRNA synthetases

  • E88.49—

    Other mitochondrial metabolism disorders

  • E88.8—

    Other specified metabolic disorders

  • E88.81—

    Metabolic syndrome and other insulin resistance

  • E88.810—

    Metabolic syndrome

  • E88.811—

    Insulin resistance syndrome, Type A

  • E88.818—

    Other insulin resistance

  • E88.819—

    Insulin resistance, unspecified

  • E88.82—

    Obesity due to disruption of MC4R pathway

  • E88.89—

    Other specified metabolic disorders

  • E88.9—

    Metabolic disorder, unspecified

  • E88.A—

    Wasting disease (syndrome) due to underlying condition

  • E89—

    Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified

  • E89.0—

    Postprocedural hypothyroidism

  • E89.1—

    Postprocedural hypoinsulinemia

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