ICD-10 Code E08.41 – Diabetes mellitus due to underlying condition with diabetic mononeuropathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.41 – Diabetes mellitus due to underlying condition with diabetic mononeuropathy
What it is
This code identifies diabetes caused by another underlying condition, with damage limited to one peripheral nerve. Use it when the record links the diabetes to the underlying disease and the neuropathy to diabetes.
Clinical signs
Typical findings include numbness, pain, weakness, or loss of function in a single nerve distribution. Clinical features vary; refer to documentation for the specific nerve involved and the supporting diabetes diagnosis.
When to use this code
Use E08.41 when the provider documents diabetes due to an underlying condition and diabetic mononeuropathy together. This applies when the neuropathy is identified as a diabetic complication, not as a separate nerve injury or generalized polyneuropathy.
Code the underlying condition first, if instructed by the record and coding rules. Check documentation when the causal relationship between the diabetes, the underlying disease, and the mononeuropathy is not explicit.
Do not use for
Do not use this code for diabetic polyneuropathy, unspecified neuropathy, or mononeuropathy from trauma or compression. Check documentation if the nerve disorder is not clearly attributed to diabetes.
Coding tip
Verify that the chart supports both the secondary diabetes and the diabetic mononeuropathy before assigning E08.41.