E31.2

Multiple endocrine neoplasia [MEN] syndromes

Header / non-billable

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This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · E31.2

Code also

any associated malignancies and other conditions associated with the syndromes

Synonyms

Multiple endocrine adenomatosis

Inherited from E31Polyglandular dysfunction

Excludes 1

ataxia telangiectasia [Louis-Bar] (G11.3) dystrophia myotonica [Steinert] (G71.11) pseudohypoparathyroidism (E20.1)

Inherited from E20-E35Disorders of other endocrine glands

Excludes 1

galactorrhea (N64.3) gynecomastia (N62)

Inherited from chapter 4Endocrine, nutritional and metabolic diseases

Excludes 1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Note

All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Official Guidelines for E31.2

FY 2026 ›

I.C.4Chapter-specific guidanceChapter 4: Endocrine, Nutritional, and Metabolic Diseases (E00-E89)

Subsections