ICD-10 Code E09 – Drug or chemical induced diabetes mellitus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09 – Drug or chemical induced diabetes mellitus
What it is
E09 identifies diabetes mellitus caused by a drug or chemical exposure. Use it when documentation links the diabetes to an external substance rather than to type 1, type 2, or gestational diabetes.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include hyperglycemia and diabetes-related symptoms after exposure to a causative medication or chemical.
When to use this code
Use E09 when the provider states that diabetes is drug or chemical induced, or when the record clearly attributes the condition to a specific substance. You may need additional codes for the causative agent and any associated manifestations. If the cause is unclear, check documentation.
Do not use for
Do not use E09 for preexisting type 1 or type 2 diabetes, or for diabetes not linked to a drug or chemical exposure. If the record does not support a causal relationship, do not assume this code.
Coding tip
Confirm the causal substance and the provider’s wording before assigning E09.