ICD-10 Code E11.641 – Type 2 diabetes mellitus with hypoglycemia with coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.641 – Type 2 diabetes mellitus with hypoglycemia with coma
What it is
This code identifies type 2 diabetes with a documented hypoglycemic episode severe enough to cause coma. Use it when the record clearly links the coma to low blood glucose in a patient with type 2 diabetes.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include loss of consciousness, severe altered mental status, and other signs of hypoglycemia recorded by the clinician.
When to use this code
Use this code when the provider documents type 2 diabetes and specifically states hypoglycemia with coma. It also fits when the chart shows coma due to diabetic hypoglycemia and the diabetes type is type 2. Check documentation if the cause of coma is unclear.
Do not use for
Do not use this code if hypoglycemia is documented without coma, or if coma is from another cause. If the diabetes type is not type 2, or the record does not support the link, check documentation.
Coding tip
Code the documented relationship between diabetes, hypoglycemia, and coma; do not infer it from glucose treatment alone.