Non-Billable / Non-Specific Code
ICD-10-CM E13 is the diagnosis code for Other specified diabetes mellitus. This code falls under the section "Diabetes mellitus" 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 E13. They are mutually exclusive:
Understanding where E13 sits in the ICD-10-CM classification helps ensure proper coding:
No, E13 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
E13 is the ICD-10-CM diagnosis code for "Other specified diabetes mellitus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
E13 is located in Section E08-E13 — "Diabetes mellitus" within Chapter 4 of the ICD-10-CM Tabular List.
E13 has 9 sub-code(s) that provide more specific detail: E13.0, E13.1, E13.2, E13.3, E13.4 and more.
Use E13 when the patients documented diagnosis matches "Other specified diabetes mellitus" 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 Other specified diabetes mellitus is E13.
No, E13 is non-billable. Use a more specific sub-code for primary diagnosis billing.
E13 is in Chapter 4 of the ICD-10-CM Tabular List.
Type 1 Excludes for E13 include: diabetes (mellitus) due to autoimmune process (E10.-); diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction (E10.-); diabetes mellitus due to underlying condition (E08.-) and more.
Yes, E13 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.