ICD-10 Code E10.35 – Type 1 diabetes mellitus with proliferative diabetic retinopathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.35 – Type 1 diabetes mellitus with proliferative diabetic retinopathy
What it is
This code identifies type 1 diabetes mellitus complicated by proliferative diabetic retinopathy, a severe diabetic eye disease. Use it when the record links the diabetes to retinal neovascular changes.
Clinical signs
Typical findings include proliferative retinal changes, such as abnormal new blood vessel growth, vitreous hemorrhage, or traction-related retinal complications. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents type 1 diabetes with proliferative diabetic retinopathy, including proliferative disease noted by an eye specialist. It applies when the retinopathy is directly tied to the diabetes diagnosis. If the documentation does not specify proliferative retinopathy, check documentation.
Do not use for
Do not use this code for nonproliferative diabetic retinopathy or unspecified diabetic eye disease. Also avoid it when the record does not clearly identify type 1 diabetes.
Coding tip
Confirm both the diabetes type and the retinopathy subtype in the provider note before assigning E10.35.