E04.1
ICD-10BillableNontoxic single thyroid nodule
Official ICD-10-CM descriptor (FY2026)
Nontoxic single thyroid nodule
E04.1 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Colloid nodule (cystic) (thyroid)
- Nontoxic uninodular goiter
- Thyroid (cystic) nodule NOS
Related codes in E04
Where this code sits
- Parent code
- E04
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.