E22 ICD-10-CM Code: Hyperfunction of pituitary gland
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
E22Hyperfunction of pituitary gland
ICD-10-CM diagnosis code · United States clinical modification
Where E22 sits
- 1
Chapter 4
Endocrine, nutritional and metabolic diseases (E00-E89)
- 2
Section
Disorders of other endocrine glands (E20-E35)
- 3
Category E22
Hyperfunction of pituitary gland
- 4
Code E22
Hyperfunction of pituitary gland
Codes under E22
E22 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for E22.
Code first
No “code first” instruction is listed for E22.
Use additional code
No “use additional code” instruction is listed for E22.
Excludes1
Conditions that should not be reported together with this 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-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for E22.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code E22 mean?
E22 is the FY 2027 U.S. ICD-10-CM code for “Hyperfunction of pituitary gland.”
Is E22 a billable or specific ICD-10-CM code?
No. E22 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is E22 located in ICD-10-CM?
E22 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Disorders of other endocrine glands (E20-E35) (E20–E35), under category E22, Hyperfunction of pituitary gland.
What coding notes are listed for E22?
No inclusion terms are listed for E22 in this reference record. No code-first instruction is listed. Excludes1 notes: 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-). No Excludes2 note is listed.