ICD-10 Code E10.34 – Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.34 – Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy
What it is
This code identifies type 1 diabetes with severe nonproliferative diabetic retinopathy, a retinal complication caused by diabetes. It means the eye disease is present and documented as severe, but not proliferative.
Clinical signs
Clinical features vary; refer to documentation. Standard findings may include retinal hemorrhages, venous changes, and intraretinal microvascular abnormalities consistent with severe nonproliferative disease.
When to use this code
Use this code when the provider documents type 1 diabetes and specifically states severe nonproliferative diabetic retinopathy. It is appropriate when the record links the eye condition to diabetes. If the retinopathy severity is not specified, check documentation before assigning this code.
Do not use for
Do not use it for proliferative diabetic retinopathy or for diabetic eye disease without a documented severe nonproliferative stage. Do not assume laterality or severity; check documentation.
Coding tip
Confirm that both type 1 diabetes and severe nonproliferative retinopathy are documented together before coding E10.34.