AutoICD API

E31.21

Billable

Multiple endocrine neoplasia [MEN] type I

Multiple endocrine neoplasia [MEN] type I

Status

Billable / Specific

Block

E20-E35

Parent Code

E31.2

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Wermer's syndrome

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Code Also

A second code may be required; sequencing depends on circumstances

  • any associated malignancies and other conditions associated with the syndromes
Related Codes(3)
E31.20

Multiple endocrine neoplasia [MEN] syndrome, unspecified

BillableE31.22

Multiple endocrine neoplasia [MEN] type IIA

BillableE31.23

Multiple endocrine neoplasia [MEN] type IIB

Billable
Also Known As / Clinical Terms(105)

SNOMED CT

UMLS

Clinical Terms

  • Multiple endocrine neoplasia, type 1 (disorder)
  • MEN - Multiple endocrine neoplasia
  • MEN 1
  • Multiple endocrine neoplasia
  • men type i
  • MULTIPLE ENDOCRINE NEOPLASIA, TYPE I
  • multiple endocrine neoplasia type 1 (MEN1)
  • men 1 syndrome
  • MEA - Multiple endocrine adenomatosis
  • Multiple endocrine neoplasia Type I
  • NEOPL MULTIPLE ENDOCRINE TYPE 1
  • ENDOCRINE ADENOMATOSIS, MULTIPLE
  • men type 1
  • Neoplasm of uncertain behavior of multiple endocrine glands
  • Multiple Endocrine Neoplasia Type 1
  • Neoplasia, Multiple Endocrine Type 1
  • Polyglandular activity in multiple endocrine adenomatosis
  • Wermer syndrome
  • Multiple Endocrine Adenomatosis, Type I
  • Neoplasm of uncertain behaviour with pluriglandular involvement
  • Multiple endocrine neoplasia, type 1
  • Multiple endocrine adenomatosis Type I
  • Wermer's Syndrome
  • MEN I
  • Neoplasms, Multiple Endocrine Type I
  • MULTIPLE ENDOCRINE NEOPL TYPE 1
  • Multiple Endocrine Adenomatosis Type 1
  • MEA, type 1
  • Neoplasms, Multiple Endocrine Type 1
  • MEA Type I
  • Multiple endocrine neoplasia syndrome type 1
  • Familial polyendocrine adenomatosis
  • MEA Type 1
  • MEA I
  • Neoplasm of uncertain behaviour of multiple endocrine glands
  • Multiple endocrine adenomatosis, type 1
  • Neoplasm of uncertain behavior with pluriglandular involvement
  • Multiple Endocrine Neoplasms Type 1
  • Multiple endocrine tumasia
  • MEN1
  • MEN, type 1
  • MEN 1 - Multiple endocrine neoplasia syndrome type 1
Frequently Asked Questions
What is the ICD-10 code for multiple endocrine neoplasia [men] type i?

The ICD-10-CM code for multiple endocrine neoplasia [men] type i is E31.21. The full clinical description is "Multiple endocrine neoplasia [MEN] type I". E31.21 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code E31.21 mean?

ICD-10-CM code E31.21 represents “Multiple endocrine neoplasia [MEN] type I”. It is classified under Chapter 4: Endocrine, Nutritional and Metabolic Diseases and is a billable/specific code that can be used on a claim.

Is E31.21 a billable code?

Yes, E31.21 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is E31.21 in?

E31.21 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).

What codes cannot be used with E31.21?

E31.21 has Excludes1 notes indicating codes that cannot be used together with it, including: transitory endocrine and metabolic disorders specific to newborn (P70-P74); galactorrhea (N64.3); gynecomastia (N62); and 3 more.

What SNOMED CT codes does E31.21 map to?

E31.21 maps to 3 SNOMED CT concepts: 46724008, 30664006, 94938005. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for E31.21?

E31.21 is linked to 1 UMLS Concept Unique Identifier: C0025267. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does E31.21 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like multiple endocrine neoplasia [men] type i affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of E31.21?

There is no direct ICD-11 mapping available for E31.21 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.