ICD-10 Code E11.329 – Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.329 – Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema
What it is
This code identifies type 2 diabetes with mild nonproliferative diabetic retinopathy, a diabetes-related retinal complication, and no macular edema. Use it when the eye finding is documented and the patient has type 2 diabetes.
Clinical signs
Findings usually include early diabetic retinal changes such as microaneurysms or small retinal hemorrhages. Clinical features vary; refer to documentation for the documented severity and whether macular edema is absent.
When to use this code
Use this code when the provider documents type 2 diabetes and mild nonproliferative diabetic retinopathy in the same patient. The record should also state that macular edema is not present. If the note is unclear about laterality or severity, check documentation before coding.
Do not use for
Do not use this code for diabetic retinopathy with macular edema, proliferative disease, or unspecified retinopathy. Also avoid it if the diabetes type is not type 2 or the retinal finding is not documented.
Coding tip
Verify both the diabetes type and the exact retinopathy severity before assigning E11.329.