ICD-10 Code E08.5 – Diabetes mellitus due to underlying condition with circulatory complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.5 – Diabetes mellitus due to underlying condition with circulatory complications
What it is
This code identifies diabetes caused by another underlying condition when circulatory complications are present. Use it for secondary diabetes with vascular involvement, not for primary type 1 or type 2 diabetes.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the record shows diabetes plus circulatory disease such as peripheral vascular involvement, ischemia, or other vascular complications linked to the underlying condition.
When to use this code
Use E08.5 when the provider documents diabetes due to another condition and specifies circulatory complications. The underlying cause should also be documented and coded when applicable. Choose this code only when the diabetes is secondary, not when the vascular problem is unrelated.
Do not use for
Do not use this code for uncomplicated diabetes or for diabetes with noncirculatory complications. Check documentation if the chart does not clearly link the diabetes to an underlying condition or to the circulatory complication.
Coding tip
Verify both the causal condition and the circulatory complication in the note before assigning E08.5.