ICD-10 Code E08.34 – Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.34 – Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathy
What it is
This code identifies diabetes caused by another underlying condition, with severe nonproliferative diabetic retinopathy affecting the eyes. Use it when the record links the diabetes and the retinopathy to that underlying condition.
Clinical signs
Severe nonproliferative diabetic retinopathy is an advanced retinal complication seen on eye examination. Clinical features vary; refer to documentation, but the diagnosis should reflect significant retinal disease without proliferative changes.
When to use this code
Use this code when the provider documents diabetes due to another condition and specifically states severe nonproliferative diabetic retinopathy. It is appropriate when the eye condition is attributed to the diabetic disease process, not listed as a separate unrelated disorder. Check documentation if laterality or severity details are incomplete.
Do not use for
Do not use this code for diabetes without documented retinopathy, or for proliferative diabetic retinopathy. Do not assign it if the retinopathy is not linked to diabetes due to an underlying condition.
Coding tip
Verify both the underlying-condition diabetes and the retinal severity are documented before coding E08.34.