ICD-10 Code E13.349 – Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E13.349 – Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema
What it is
This code identifies diabetes mellitus of another specified type with severe nonproliferative diabetic retinopathy, but no macular edema. It tells you the eye complication is advanced enough to be severe, while the macula is not swollen.
Clinical signs
Severe nonproliferative diabetic retinopathy may show extensive retinal hemorrhages, venous changes, or intraretinal microvascular abnormalities. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record documents a specified diabetes type and ophthalmology confirms severe nonproliferative diabetic retinopathy without macular edema. You should also see clear support that macular edema is absent. If the diabetes type or eye findings are unclear, check documentation.
Do not use for
Do not use this code if macular edema is present or if the retinopathy is proliferative. Do not use it when the diabetes type is not documented as “other specified” diabetes mellitus.
Coding tip
Verify both the diabetes category and the exact retinopathy severity before assigning E13.349.