ICD-10 Code E01.2 – Iodine-deficiency related (endemic) goiter, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E01.2 – Iodine-deficiency related (endemic) goiter, unspecified
What it is
This code identifies a goiter caused by iodine deficiency when the type is not further specified. Use it for an enlarged thyroid linked to inadequate iodine intake or exposure, with no additional detail documented.
Clinical signs
Typical findings include visible or palpable thyroid enlargement, often with a history suggesting low iodine intake. Clinical features vary; refer to documentation for any compressive symptoms or thyroid function findings.
When to use this code
Use E01.2 when the record states endemic or iodine-deficiency related goiter but does not name a more specific subtype. It also fits when the provider documents goiter due to iodine deficiency and no further detail is available. You should code from the clinician’s wording, not from assumption.
Do not use for
Do not use this code for goiter from other causes, such as autoimmune thyroid disease, multinodular goiter, or thyroid nodules without iodine deficiency. Check documentation if the etiology is unclear.
Coding tip
If the note does not clearly link the goiter to iodine deficiency, query for clarification before assigning E01.2.