ICD-10 Code E08.49 – Diabetes mellitus due to underlying condition with other diabetic neurological complication (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.49 – Diabetes mellitus due to underlying condition with other diabetic neurological complication
What it is
This code identifies diabetes caused by another underlying condition, with a documented diabetic neurological complication that does not fit a more specific diabetic nerve code. Use it when the record links the diabetes and the neurologic complication clearly.
Clinical signs
Clinical features vary; refer to documentation. You may see neuropathic pain, numbness, tingling, weakness, or other nerve-related findings attributed to diabetes.
When to use this code
Use E08.49 when the provider states the patient has diabetes due to an underlying condition and also documents a diabetic neurological complication. The chart should support both the secondary diabetes and the nerve complication. If the note names a more specific neurological manifestation, code that option instead.
Do not use for
Do not use this code for primary diabetes mellitus or for neurological disorders not documented as diabetic complications. If the underlying condition or complication is unclear, check documentation.
Coding tip
Always code the underlying condition first and verify that the neurological complication is explicitly linked to diabetes.