ICD-10-CM · Chapter 4 · E00-E89
E22 Hyperfunction of pituitary gland
Excludes 1 (cannot be coded together)
- Cushing's syndrome (E24.-)
- Nelson's syndrome (E24.1)
- overproduction of ACTH not associated with Cushing's disease (E27.0)
- overproduction of pituitary ACTH (E24.0)
- overproduction of thyroid-stimulating hormone (E05.8-)
Subcodes
Each subcode links to a detail page with full clinical annotations.
Last reviewed: September 2026