E22.9Billable

Hyperfunction of pituitary gland, unspecified

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E22
Effective date
October 1, 2026

Related codes in category E22

E22Hyperfunction of pituitary glandE22.0Acromegaly and pituitary gigantismYesE22.1HyperprolactinemiaYesE22.2Syndrome of inappropriate secretion of antidiuretic hormoneYesE22.8Other hyperfunction of pituitary glandYes

Frequently asked questions

What is ICD-10 code E22.9?

E22.9 is an ICD-10-CM diagnosis code for Hyperfunction of pituitary gland, unspecified.

Is E22.9 a billable code?

Yes. E22.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is E22.9 in?

E22.9 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E22.9 become effective?

E22.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E22.9?

E22.9 belongs to category E22, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.