ICD-10 Code E10.9 – Type 1 diabetes mellitus without complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.9 – Type 1 diabetes mellitus without complications
What it is
E10.9 identifies type 1 diabetes mellitus when the record does not document a current complication. Use it for insulin-dependent diabetes without kidney, eye, nerve, or circulatory complications.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include a diagnosis of type 1 diabetes and ongoing insulin dependence, with no documented acute or chronic complication linked to the diabetes.
When to use this code
Use E10.9 when the provider clearly documents type 1 diabetes and no complication is mentioned in the assessment. It also fits follow-up visits for established type 1 diabetes when the note remains uncomplicated. If the chart later specifies a complication, code that condition instead.
Do not use for
Do not use E10.9 if the record documents diabetic ketoacidosis, hyperglycemia, hypoglycemia, or any organ complication. Check documentation if the note is unclear or if another diabetes type is recorded.
Coding tip
Confirm the diabetes type and look for linked complications before assigning E10.9.