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)
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
All CodesBillable Only
Browse by Section10 Sections
Internal Codes
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  • E00—

    Congenital iodine-deficiency syndrome

  • E00.0—

    Congenital iodine-deficiency syndrome, neurological type

  • E00.1—

    Congenital iodine-deficiency syndrome, myxedematous type

  • E00.2—

    Congenital iodine-deficiency syndrome, mixed type

  • E00.9—

    Congenital iodine-deficiency syndrome, unspecified

  • E01—

    Iodine-deficiency related thyroid disorders and allied conditions

  • E01.0—

    Iodine-deficiency related diffuse (endemic) goiter

  • E01.1—

    Iodine-deficiency related multinodular (endemic) goiter

  • E01.2—

    Iodine-deficiency related (endemic) goiter, unspecified

  • E01.8—

    Other iodine-deficiency related thyroid disorders and allied conditions

  • E02—

    Subclinical iodine-deficiency hypothyroidism

  • E03—

    Other hypothyroidism

  • E03.0—

    Congenital hypothyroidism with diffuse goiter

  • E03.1—

    Congenital hypothyroidism without goiter

  • E03.2—

    Hypothyroidism due to medicaments and other exogenous substances

  • E03.3—

    Postinfectious hypothyroidism

  • E03.4—

    Atrophy of thyroid (acquired)

  • E03.5—

    Myxedema coma

  • E03.8—

    Other specified hypothyroidism

  • E03.9—

    Hypothyroidism, unspecified

  • E04—

    Other nontoxic goiter

  • E04.0—

    Nontoxic diffuse goiter

  • E04.1—

    Nontoxic single thyroid nodule

  • E04.2—

    Nontoxic multinodular goiter

  • E04.8—

    Other specified nontoxic goiter

  • E04.9—

    Nontoxic goiter, unspecified

  • E05—

    Thyrotoxicosis [hyperthyroidism]

  • E05.0—

    Thyrotoxicosis with diffuse goiter

  • E05.00—

    Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm

  • E05.01—

    Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm

  • E05.1—

    Thyrotoxicosis with toxic single thyroid nodule

  • E05.10—

    Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm

  • E05.11—

    Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm

  • E05.2—

    Thyrotoxicosis with toxic multinodular goiter

  • E05.20—

    Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm

  • E05.21—

    Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm

  • E05.3—

    Thyrotoxicosis from ectopic thyroid tissue

  • E05.30—

    Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm

  • E05.31—

    Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm

  • E05.4—

    Thyrotoxicosis factitia

  • E05.40—

    Thyrotoxicosis factitia without thyrotoxic crisis or storm

  • E05.41—

    Thyrotoxicosis factitia with thyrotoxic crisis or storm

  • E05.8—

    Other thyrotoxicosis

  • E05.80—

    Other thyrotoxicosis without thyrotoxic crisis or storm

  • E05.81—

    Other thyrotoxicosis with thyrotoxic crisis or storm

  • E05.9—

    Thyrotoxicosis, unspecified

  • E05.90—

    Thyrotoxicosis, unspecified without thyrotoxic crisis or storm

  • E05.91—

    Thyrotoxicosis, unspecified with thyrotoxic crisis or storm

  • E06—

    Thyroiditis

  • E06.0—

    Acute thyroiditis

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