Is E31 a billable code?
No. E31 is a header code that groups 8 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
E31: Polyglandular dysfunction
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
E31 groups related diagnoses under polyglandular dysfunction. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under E31
- E31.0Autoimmune polyglandular failure
- E31.1Polyglandular hyperfunction
- E31.20Multiple endocrine neoplasia [MEN] syndrome, unspecified
- E31.21Multiple endocrine neoplasia [MEN] type I
- E31.22Multiple endocrine neoplasia [MEN] type IIA
- E31.23Multiple endocrine neoplasia [MEN] type IIB
- E31.8Other polyglandular dysfunction
- E31.9Polyglandular dysfunction, unspecified
E31 questions
What does E31 mean?
E31 is the ICD-10-CM code for Polyglandular dysfunction. It is in chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.