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E22

Non-billable

Hyperfunction of pituitary gland

E22 is the ICD-10-CM code for Hyperfunction of pituitary gland. It is a non-billable category code — use a more specific child code such as E22.0 for billing.

Status
Header (non-billable)
Chapter
E00-E89
Subcodes
5
Edition
FY2026

E00-E89 Endocrine, nutritional and metabolic diseases

Excludes1 — not coded here

  • •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-)

Frequently asked questions

What is ICD-10 code E22?
E22 is the ICD-10-CM code for "Hyperfunction of pituitary gland". It falls under E00-E89 Endocrine, nutritional and metabolic diseases.
Is E22 a billable code?
No — E22 is a non-billable header code. Use a more specific child code (such as E22.0) for billing.
What are the subcodes of E22?
E22 has 5 more specific child codes, including E22.0, E22.1, E22.2.
What is excluded from E22?
Excludes1 (not coded here): 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).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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