ICD-10 Code E09.641 – Drug or chemical induced diabetes mellitus with hypoglycemia with coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.641 – Drug or chemical induced diabetes mellitus with hypoglycemia with coma
What it is
This code identifies diabetes caused by a drug or chemical, complicated by low blood sugar severe enough to cause coma. Use it when documentation links the diabetes and the hypoglycemic coma to the same external agent.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include altered mental status, loss of consciousness, and evidence of hypoglycemia in a patient with drug- or chemical-induced diabetes.
When to use this code
Use E09.641 when the provider documents drug- or chemical-induced diabetes mellitus with hypoglycemia and coma. The record should show that the coma is due to hypoglycemia, not another cause. Confirm the causal agent if it is named.
Do not use for
Do not use this code for diabetes from other causes, such as type 1 or type 2 diabetes. Also avoid it when hypoglycemia or coma is documented separately without a drug- or chemical-induced diabetes link.
Coding tip
Code the external agent only when documentation clearly connects it to the diabetes and hypoglycemic coma.