ICD-10 Code E11.8 – Type 2 diabetes mellitus with unspecified complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.8 – Type 2 diabetes mellitus with unspecified complications
What it is
E11.8 identifies type 2 diabetes mellitus when the record shows a diabetic complication, but the documentation does not specify which complication. Use it when the chart confirms diabetes-related problems without naming the exact type.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the record may note diabetes with complications affecting another system, but the specific manifestation is not described clearly enough to code separately.
When to use this code
Use E11.8 when the provider documents type 2 diabetes with a complication and does not identify the complication in enough detail for a more specific code. It may also apply when the note states “diabetes with unspecified complication” or similar wording. Check documentation if the complication is later clarified.
Do not use for
Do not use this code when the complication is specified and has a more precise ICD-10-CM code. Do not use it for uncomplicated type 2 diabetes, which is coded elsewhere.
Coding tip
Query for the exact diabetic complication whenever the documentation is vague, because a more specific code is usually available.