ICD-10 Code E08.36 – Diabetes mellitus due to underlying condition with diabetic cataract (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.36 – Diabetes mellitus due to underlying condition with diabetic cataract
What it is
This code identifies diabetes mellitus caused by another underlying condition, with cataract attributed to the diabetes. Use it when the record links the diabetes and cataract to the same underlying disease process.
Clinical signs
Clinical features vary; refer to documentation. Cataracts typically present with blurred or cloudy vision, glare, and reduced visual clarity, while the diabetes is documented as secondary to another condition.
When to use this code
Use E08.36 when the provider documents diabetes due to an underlying condition and specifically notes diabetic cataract. It is appropriate when both conditions are clearly linked in the assessment or problem list. Check documentation if the cataract type or diabetes cause is not stated.
Do not use for
Do not use this code for primary diabetes with cataract, which is coded elsewhere. Do not assign it when cataract is present but not documented as diabetic or when the underlying cause of the diabetes is not confirmed.
Coding tip
Verify that the record states both the secondary diabetes and the diabetic cataract before assigning E08.36.