ICD-10 Code E09.42 – Drug or chemical induced diabetes mellitus with neurological complications with diabetic polyneuropathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.42 – Drug or chemical induced diabetes mellitus with neurological complications with diabetic polyneuropathy
What it is
This code identifies diabetes caused by a drug or chemical, with nerve damage specifically documented as diabetic polyneuropathy. Use it when the diabetes and the neuropathy are both linked to the same induced condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include symmetric peripheral neuropathy, numbness, tingling, burning pain, or reduced sensation in the feet or hands.
When to use this code
Use E09.42 when the provider documents drug- or chemical-induced diabetes mellitus and specifically states diabetic polyneuropathy. It may appear in patients whose diabetes develops after exposure to a causative medication or chemical. You should code the induced diabetes and the neurologic complication together when both are confirmed.
Do not use for
Do not use this code for type 1, type 2, or gestational diabetes, or when neuropathy is present without documentation linking it to diabetic polyneuropathy. Check documentation if the cause of diabetes is unclear.
Coding tip
Verify that the record names both the inducing agent and the neuropathy; if the complication is unspecified, code to the documented level only.