E23
Hypofunction and other disorders of the pituitary gland
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
E23 is a non-billable ICD-10-CM code category for hypofunction and other disorders of the pituitary gland. 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 E23.0 Hypopituitarism; E23.1 Drug-induced hypopituitarism; E23.2 Diabetes insipidus; E23.3 Hypothalamic dysfunction, not elsewhere classified and 2 more. Its coding notes include 5 Excludes1 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Includes
Further defines or gives examples of the content of the category.
This code
- the listed conditions whether the disorder is in the pituitary or the hypothalamus
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.