ICD-10 Code E13.40 – Other specified diabetes mellitus with diabetic neuropathy, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E13.40 – Other specified diabetes mellitus with diabetic neuropathy, unspecified
What it is
This code identifies diabetes mellitus due to another specified cause, with diabetic neuropathy present but not further described. Use it when the record links the neuropathy to diabetes, yet the diabetes type is not one of the standard categories.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include numbness, tingling, burning pain, or reduced sensation in the feet or hands, with neuropathy attributed to diabetes.
When to use this code
Use E13.40 when the provider documents other specified diabetes mellitus and diabetic neuropathy, but does not specify the neuropathy type. It also fits when the neuropathy is confirmed as diabetic and no more precise nerve involvement is documented. Check documentation if the diabetes etiology is unclear.
Do not use for
Do not use this code if the record supports type 1, type 2, or gestational diabetes instead. Also avoid it when neuropathy is unrelated to diabetes or when a more specific diabetic neuropathy code is documented.
Coding tip
Confirm both the diabetes category and the diabetic link to neuropathy before assigning E13.40.