E00 ICD-10-CA category: Congenital iodine-deficiency syndrome
E00 isn’t a code on its own. Choose one of the 4 codes beneath it, the one the documentation supports.
Official description
E00Congenital iodine-deficiency syndrome
ICD-10-CA · Canada
Codes in E00
E00 isn’t a code on its own. Open the code that matches what the note documents.
Notes for E00
As CIHI prints them, with any note E00 takes from the headings above it.
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (F70-F79) to identify associated mental retardation.
Excludes
Conditions classified elsewhere.
- Subclinical iodine-deficiency hypothyroidism (E02)
- Complications of pregnancy, childbirth and the puerperium (O00-O99)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)transitory endocrine and metabolic disorders specific to fetus and newborn (P70-P74)From Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
Note
- Endemic conditions associated with environmental iodine deficiency either directly or as a consequence of maternal iodine deficiency. Some of the conditions have no current hypothyroidism but are the consequence of inadequate thyroid hormone secretion in the developing fetus. Environmental goitrogens may be associated.
- All neoplasms, whether functionally active or not, are classified in Chapter II. Appropriate codes in this chapter (i.e. E05.8)(E07.0) (E16-E31)(E34.-) may be used, if desired, as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.From Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
Where E00 sits
- 1ChapterChapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
- 2Block E00-E07Disorders of thyroid gland
- 3Category E00Congenital iodine-deficiency syndrome
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is E00 a valid ICD-10-CA code?
No. E00 (Congenital iodine-deficiency syndrome) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 4 codes; record the one the documentation supports.
Where is E00 in ICD-10-CA?
E00 sits under E00-E07 Disorders of thyroid gland, within Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90).
What coding notes apply to E00?
ICD-10-CA lists Note, Use additional code, Excludes notes for E00, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.