All ICD10 Codes
E22Non-billable

Hyperfunction of pituitary gland

Endocrine, Nutritional and Metabolic Diseases·Disorders of other endocrine glands (E20-E35)·category·FY 2026

Use a more specific code (5 billable)
E22.0Acromegaly and pituitary gigantismE22.1HyperprolactinemiaE22.2Syndrome of inappropriate secretion of antidiuretic hormoneE22.8Other hyperfunction of pituitary glandE22.9Hyperfunction of pituitary gland, unspecified

CH4 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

E20-E35 Parent Instructions

Excludes1(Not coded here. Use a different code.)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • 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-)

Clinical Hierarchy

BillableHas subcodes
CH4Endocrine, nutritional and metabolic diseases (E00-E89)
E20-E35Disorders of other endocrine glands (E20-E35)
E22Hyperfunction of pituitary glandNot billable
E22.0Acromegaly and pituitary gigantismBillable
E22.1HyperprolactinemiaBillable
E22.2Syndrome of inappropriate secretion of antidiuretic hormoneBillable
E22.8Other hyperfunction of pituitary glandBillable
E22.9Hyperfunction of pituitary gland, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.