ICD-10 Code E10.341 – Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.341 – Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema
What it is
This code identifies type 1 diabetes with severe nonproliferative diabetic retinopathy and macular edema in one or both eyes. It signals advanced diabetic eye disease with retinal damage and swelling at the macula.
Clinical signs
Findings may include retinal hemorrhages, venous changes, and other severe nonproliferative retinopathy features on eye examination. Macular edema may cause blurred or distorted central vision; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider documents type 1 diabetes and severe nonproliferative diabetic retinopathy with macular edema. Code it when the eye condition is linked to diabetes and the severity is clearly stated in the record.
If the note identifies laterality or specifies both eyes, follow the applicable ICD-10-CM instructions and supported documentation. Check documentation when the retinopathy severity or macular edema status is unclear.
Do not use for
Do not use this code for diabetic retinopathy without macular edema, proliferative retinopathy, or unspecified eye disease. Do not assign it if the record does not support type 1 diabetes.
Coding tip
Confirm both the diabetes type and the exact retinopathy severity before coding, and verify whether macular edema is documented.