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E23Non-billableSave

E23 - Hypofunction and other disorders of the pituitary gland

ICD-10-CM Chapter 4: Endocrine, nutritional and metabolic diseases · E20-E35 Disorders of other endocrine glands (E20-E35) · Top-level category · FY2027

Coding Guidance

E23 is a non-billable heading. Report one of the 6 more specific codes below.

Includes, Excludes and Coding Notes

IncludesFrom E23

Conditions this code covers.

  • the listed conditions whether the disorder is in the pituitary or the hypothalamus
Excludes 1 — Not Coded HereFrom E23

Mutually exclusive: these conditions are never reported together with this code.

  • postprocedural hypopituitarism (E89.3)
  • short stature due to endocrine disorder (E34.3-)
Excludes 1 — Not Coded HereFrom E20-E35 Disorders of other endocrine glands (E20-E35)

Mutually exclusive: these conditions are never reported together with this code.

  • galactorrhea (N64.3)
  • gynecomastia (N62)
Excludes 1 — Not Coded HereFrom Chapter E00-E89

Mutually exclusive: these conditions are never reported together with this code.

  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
NotesFrom Chapter E00-E89

Instructional notes from the ICD-10-CM tabular list.

  • 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 (6)

E23.0Hypopituitarism→E23.1Drug-induced hypopituitarism→E23.2Diabetes insipidus→E23.3Hypothalamic dysfunction, not elsewhere classified→E23.6Other disorders of pituitary gland→E23.7Disorder of pituitary gland, unspecified→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with E23.