E23.0 Hypopituitarism

The ICD-10-CM code for Hypopituitarism is E23.0 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

4: Endocrine, nutritional and metabolic diseases (E00-E89)

Section

E20-E35: Disorders of other endocrine glands (E20-E35)

Category E23

7 codes (6 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to E23.0:

• Lorain (-Levi) short stature syndrome
• Simmonds' cachexia or disease
• Sheehan's disease or syndrome
• Fertile eunuch syndrome
• Panhypopituitarism
• Kallmann's syndrome
• Hypopituitarism (juvenile)
• Ahumada-del Castillo syndrome

Inclusion Terms

• Fertile eunuch syndrome
• Hypogonadotropic hypogonadism
• Idiopathic growth hormone deficiency
• Isolated deficiency of gonadotropin
• Isolated deficiency of growth hormone
• Isolated deficiency of pituitary hormone
• Kallmann's syndrome
• Lorain-Levi short stature
• Necrosis of pituitary gland (postpartum)
• Panhypopituitarism
• Pituitary cachexia
• Pituitary insufficiency NOS
• Pituitary short stature
• Sheehan's syndrome
• Simmonds' disease

U.S. Hospital Utilization

• An estimated 26,345 U.S. inpatient stays in 2023 included E23.0 among the documented diagnoses.
• 355 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

Obesity (TOC entry)

b. Obesity .................................................................................................................................. 42

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference E23.0 with the canonical source and edition:

E23.0 — Hypopituitarism. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/E23.0

Canonical URL: https://icd10codingpro.com/codes/E23.0