ICD-10 Code E11.33 – Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.33 – Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy
What it is
This code identifies type 2 diabetes complicated by moderate nonproliferative diabetic retinopathy. Use it when the record links the diabetes to this specific diabetic eye disease.
Clinical signs
Clinical features vary; refer to documentation. Moderate nonproliferative retinopathy is typically documented by an eye specialist as retinal microvascular damage without proliferative changes.
When to use this code
Use E11.33 when the provider documents type 2 diabetes and moderate nonproliferative diabetic retinopathy in the same encounter or problem list. It may also be appropriate when the eye condition is stated as a diabetic complication and the diabetes type is confirmed. Check documentation if severity is unclear.
Do not use for
Do not use this code for diabetic retinopathy that is mild, severe, proliferative, or unspecified. Do not use it when the record does not clearly connect the retinopathy to type 2 diabetes.
Coding tip
Verify both the diabetes type and retinopathy severity in the ophthalmology note before assigning E11.33.