E00Header code — not billable

Congenital iodine-deficiency syndrome

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E00
Effective date
October 1, 2026

Related codes in category E00

E00.0Congenital iodine-deficiency syndrome, neurological typeYesE00.1Congenital iodine-deficiency syndrome, myxedematous typeYesE00.2Congenital iodine-deficiency syndrome, mixed typeYesE00.9Congenital iodine-deficiency syndrome, unspecifiedYes

Frequently asked questions

What is ICD-10 code E00?

E00 is an ICD-10-CM diagnosis code for Congenital iodine-deficiency syndrome.

Is E00 a billable code?

No. E00 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is E00 in?

E00 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E00 become effective?

E00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E00?

E00 belongs to category E00, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.