E22.0 Acromegaly and pituitary gigantism

The ICD-10-CM code for Acromegaly and pituitary gigantism is E22.0 (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 E22

6 codes (5 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to E22.0:

• Launois' syndrome (pituitary gigantism)
• Erdheim's syndrome (acromegalic macrospondylitis)
• Gigantism (cerebral) (hypophyseal) (pituitary)
• Scaglietti-Dagnini syndrome
• Macrospondylitis , acromegalic
• Acromegaly, acromegalia
• Hypophyseal, hypophysis › gigantism
• Marie's › disease or syndrome (acromegaly)

Inclusion Terms

• Overproduction of growth hormone

U.S. Hospital Utilization

• An estimated 2,075 U.S. inpatient stays in 2023 included E22.0 among the documented diagnoses.

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)