E04.1

Billable

ChapterE00–E89

Ranksubcategory

Official Description

Nontoxic single thyroid nodule

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

Instructional Notes

Includes

Colloid nodule (cystic) (thyroid)
Nontoxic uninodular goiter
Thyroid (cystic) nodule NOS

General instructions are available for the parent sections:

View CH4 Notes View E04 Notes

Clinical Hierarchy

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E00-E07Disorders of thyroid gland (E00-E07)

E04Other nontoxic goiter

E04.1Nontoxic single thyroid nodule

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E04.1:

categoryE04

Other nontoxic goiter

View context instructions

chapterCH4

Endocrine, nutritional and metabolic diseases (E00-E89)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to E04.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

8 raw paths

Colloid nodule (of thyroid) (cystic)1 unique routes

Direct index entry→E04.1

Cyst (colloid) (mucous) (simple) (retention)1 unique routes

thyroid (gland)→E04.1

Goiter (plunging) (substernal)2 unique routes

nontoxic

uninodular→E04.1

uninodular (nontoxic)→E04.1

Nodule (s), nodular2 unique routes

colloid (cystic), thyroid→E04.1

thyroid (cold) (gland) (nontoxic)→E04.1

Struma1 unique routes

nodosa (simplex)

uninodular→E04.1

Thyroid (gland) (body)1 unique routes

nodule (cystic) (nontoxic) (single)→E04.1

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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