E00.9

Congenital iodine-deficiency syndrome, unspecified

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

RxHCC V08

RXHCC44

Thyroid Disorders

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · E00.9

Synonyms

Congenital iodine-deficiency hypothyroidism NOS Endemic cretinism NOS

Inherited from E00Congenital iodine-deficiency syndrome

Excludes 1

subclinical iodine-deficiency hypothyroidism (E02)

Use additional

code (F70-F79) to identify associated intellectual disabilities.

Inherited from chapter 4Endocrine, nutritional and metabolic diseases

Excludes 1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Note

All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used 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.

Official Guidelines for E00.9

FY 2026 ›

I.C.4Chapter-specific guidanceChapter 4: Endocrine, Nutritional, and Metabolic Diseases (E00-E89)

Subsections

Find E00.9 in the alphabetic index

3 index paths lead to this code