E22 Hyperfunction of pituitary gland

Category / Non-billable header 5 subcodes

Block: Disorders of other endocrine glands (E20-E35)

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.

Code Description Billable
E22..0 Acromegaly and pituitary gigantism Yes
E22..1 Hyperprolactinemia Yes
E22..2 Syndrome of inappropriate secretion of antidiuretic hormone Yes
E22..8 Other hyperfunction of pituitary gland Yes
E22..9 Hyperfunction of pituitary gland, unspecified Yes

Last reviewed: September 2026