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E23

Non-billable

Hypofunction and other disorders of the pituitary gland

E23 is the ICD-10-CM code for Hypofunction and other disorders of the pituitary gland. It is a non-billable category code — use a more specific child code such as E23.0 for billing.

Status
Header (non-billable)
Chapter
E00-E89
Subcodes
6
Edition
FY2026

E00-E89 Endocrine, nutritional and metabolic diseases

Includes

  • •the listed conditions whether the disorder is in the pituitary or the hypothalamus

Excludes1 — not coded here

  • •postprocedural hypopituitarism (E89.3)
  • •short stature due to endocrine disorder (E34.3-)

Frequently asked questions

What is ICD-10 code E23?
E23 is the ICD-10-CM code for "Hypofunction and other disorders of the pituitary gland". It falls under E00-E89 Endocrine, nutritional and metabolic diseases.
Is E23 a billable code?
No — E23 is a non-billable header code. Use a more specific child code (such as E23.0) for billing.
What are the subcodes of E23?
E23 has 6 more specific child codes, including E23.0, E23.1, E23.2.
What is excluded from E23?
Excludes1 (not coded here): postprocedural hypopituitarism (E89.3); short stature due to endocrine disorder (E34.3-).

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

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