Non-Billable / Non-Specific Code
ICD-10-CM E31 is the diagnosis code for Polyglandular dysfunction. This code falls under the section "Disorders of other endocrine glands" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as E31. They are mutually exclusive:
Understanding where E31 sits in the ICD-10-CM classification helps ensure proper coding:
No, E31 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
E31 is the ICD-10-CM diagnosis code for "Polyglandular dysfunction". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
E31 is located in Section E20-E35 — "Disorders of other endocrine glands" within Chapter 4 of the ICD-10-CM Tabular List.
E31 has 5 sub-code(s) that provide more specific detail: E31.0, E31.1, E31.2, E31.8, E31.9.
Use E31 when the patients documented diagnosis matches "Polyglandular dysfunction" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Polyglandular dysfunction is E31.
No, E31 is non-billable. Use a more specific sub-code for primary diagnosis billing.
E31 is in Chapter 4 of the ICD-10-CM Tabular List.
Type 1 Excludes for E31 include: ataxia telangiectasia [Louis-Bar] (G11.3); dystrophia myotonica [Steinert] (G71.11); pseudohypoparathyroidism (E20.1).
Yes, E31 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.