ICD-10 Code E10.5 – Type 1 diabetes mellitus with circulatory complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.5 – Type 1 diabetes mellitus with circulatory complications
What it is
E10.5 identifies type 1 diabetes mellitus when it is documented with circulatory complications. Use it for diabetes-related vascular involvement, not for uncomplicated diabetes alone.
Clinical signs
Clinical features vary; refer to documentation. You may see evidence of diabetic vascular disease affecting circulation, such as peripheral or other circulatory complications linked to type 1 diabetes.
When to use this code
Use this code when the provider clearly documents type 1 diabetes with circulatory complications. It applies when the circulatory issue is stated as diabetes-related and is part of the assessment or final diagnosis. Check documentation if the record only mentions diabetes without a vascular complication.
Do not use for
Do not use E10.5 for type 1 diabetes without circulatory complications, or when the circulatory problem is unrelated to diabetes. If the complication type is unclear, check documentation.
Coding tip
Assign the complication code only when the linkage between type 1 diabetes and the circulatory condition is explicitly documented.