E04.2 Nontoxic multinodular goiter

Billable ICD-10-CM code, FY2026.

Applicable to

• Cystic goiter NOS
• Multinodular (cystic) goiter NOS

Applies from E04 Other nontoxic goiter

Excludes1 (never code together)

• congenital goiter (NOS) (diffuse) (parenchymatous) (E03.0)
• iodine-deficiency related goiter (E00-E02)

Risk adjustment (HCC)

• RxHCC V08: HCC 44 — Thyroid Disorders

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 241.1 Nontoxic multinodular goiter (approximate)

Code annotations containing back-references to E04.2

Back-references to E04

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")

Diagnosis Index entries for E04.2

• Goiter (plunging) (substernal) › cystic
• Goiter (plunging) (substernal) › multinodular (cystic) (nontoxic)
• Goiter (plunging) (substernal) › nontoxic › multinodular
• Struma › nodosa (simplex) › multinodular

Nearby codes

• E04 Other nontoxic goiter
• E04.0 Nontoxic diffuse goiter
• E04.1 Nontoxic single thyroid nodule
• E04.2 Nontoxic multinodular goiter (this code)
• E04.8 Other specified nontoxic goiter
• E04.9 Nontoxic goiter, unspecified