2025 ICD-10-CM Diagnosis Code E01.1

Iodine-deficiency related multinodular (endemic) goiter

• E01.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2025 edition of ICD-10-CM E01.1 became effective on October 1, 2024.
• This is the American ICD-10-CM version of E01.1 – other international versions of ICD-10 E01.1 may differ.

Applicable To

• Iodine-deficiency related nodular goiter

The following code(s) above E01.1 contain annotation back-references

 that may be applicable to E01.1:

• E00-E89  Endocrine, nutritional and metabolic diseases
• E01  Iodine-deficiency related thyroid disorders and allied conditions

Approximate Synonyms

• Iodine deficiency related multinodular thyroid goiter
• Iodine-deficiency-related multinodular endemic goiter

ICD-10-CM E01.1 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 643 Endocrine disorders with mcc
• 644 Endocrine disorders with cc
• 645 Endocrine disorders without cc/mcc

Convert E01.1 to ICD-9-CMCode History

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change
• 2024 (effective 10/1/2023): No change
• 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to E01.1:

• Goiter (plunging) (substernal) E04.9
  • cysticE04.2
    • due to iodine-deficiency E01.1
  • endemic (iodine-deficiency) E01.2
    • multinodular E01.1
  • iodine-deficiency (endemic) E01.2
    • multinodular E01.1
    • nodular E01.1
  • nodular (nontoxic) (due to) E04.9
    • endemic E01.1
    • iodine-deficiency E01.1
• Struma – see also Goiter
  • nodosa (simplex) E04.9
    • endemicE01.2
      • multinodular E01.1
    • multinodularE04.2
      • iodine-deficiency related E01.1