ICD-10-CM > E00-E89 > E00-E07 > E04 E04 Other nontoxic goiter Non-Billable/Non-Specific Type 1 Excludes congenital goiter (NOS) (diffuse) (parenchymatous) (E03.0)iodine-deficiency related goiter (E00-E02) Codes E04.0Nontoxic diffuse goiterE04.1Nontoxic single thyroid noduleE04.2Nontoxic multinodular goiterE04.8Other specified nontoxic goiterE04.9Nontoxic goiter, unspecified