Alphabetic Index FY2027

E03

Other hypothyroidism

FY2027Chapter 4: Endocrine, nutritional and metabolic diseases/E00–E07 Disorders of thyroid gland

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

E03 is a non-billable ICD-10-CM code category for other hypothyroidism. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are E03.0 Congenital hypothyroidism with diffuse goiter, E03.1 Congenital hypothyroidism without goiter, E03.2 Hypothyroidism due to medicaments and other exogenous substances, E03.3 Postinfectious hypothyroidism and 4 more. Its coding notes include 3 Excludes1 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • iodine-deficiency related hypothyroidism (E00-E02)
  • postprocedural hypothyroidism (E89.0)
Also from chapter/block level (1 note)
Inherited from Chapter 4 Endocrine, nutritional and metabolic diseases
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 4 Endocrine, nutritional and metabolic diseases
  • 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.

More specific codes under E03 8