ICD-10-CM > E00-E89 > E00-E07 > E00 E00 Congenital iodine-deficiency syndrome Non-Billable/Non-Specific Use Additional code (F70-F79) to identify associated intellectual disabilities. Type 1 Excludes subclinical iodine-deficiency hypothyroidism (E02) Codes E00.0Congenital iodine-deficiency syndrome, neurological typeE00.1Congenital iodine-deficiency syndrome, myxedematous typeE00.2Congenital iodine-deficiency syndrome, mixed typeE00.9Congenital iodine-deficiency syndrome, unspecified