ICD-10 Code E11.65 – Type 2 diabetes mellitus with hyperglycemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.65 – Type 2 diabetes mellitus with hyperglycemia
What it is
E11.65 identifies type 2 diabetes mellitus when the record documents hyperglycemia. Use it for patients with type 2 diabetes and elevated blood glucose noted in the chart.
Clinical signs
Clinical features vary; refer to documentation. You may see symptoms or assessment findings consistent with high blood sugar, but the diagnosis should be supported by the provider’s statement.
When to use this code
Use E11.65 when the provider documents type 2 diabetes with hyperglycemia, or clearly links elevated glucose to the diabetes diagnosis. It is appropriate in outpatient, inpatient, and follow-up records when hyperglycemia is part of the assessed condition. Check documentation if the note only mentions abnormal glucose without a diagnosis.
Do not use for
Do not use this code for type 1 diabetes, gestational diabetes, or diabetes with other specified complications. Also avoid it when hyperglycemia is not documented as related to type 2 diabetes.
Coding tip
Code the documented diabetes type first, and confirm that hyperglycemia is explicitly linked in the provider’s assessment.