ICD-10 Code E10.41 – Type 1 Diabetes Mellitus with Diabetic Mononeuropathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.41 – Type 1 diabetes mellitus with diabetic mononeuropathy
What it is
This code identifies type 1 diabetes mellitus complicated by diabetic mononeuropathy, meaning damage to a single peripheral nerve. Use it when the record links the neuropathy directly to type 1 diabetes.
Clinical signs
Clinical features vary; refer to documentation. Findings may include focal numbness, pain, weakness, or loss of function in a nerve distribution, with evidence that the nerve problem is diabetic in origin.
When to use this code
Use E10.41 when the provider documents type 1 diabetes and a diabetic mononeuropathy in the same patient. The note should show the neuropathy is a complication of diabetes, not an unrelated nerve lesion. If laterality or a more specific nerve site is documented, code accordingly.
Do not use for
Do not use this code for type 2 diabetes, diabetic polyneuropathy, or neuropathy without a documented diabetic cause. Check documentation if the nerve disorder is traumatic, compressive, or otherwise unrelated to diabetes.
Coding tip
Verify that the record explicitly connects the mononeuropathy to type 1 diabetes before assigning E10.41.