ICD-10 Code E10.641 – Type 1 diabetes mellitus with hypoglycemia with coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.641 – Type 1 diabetes mellitus with hypoglycemia with coma
What it is
E10.641 identifies type 1 diabetes mellitus complicated by hypoglycemia severe enough to cause coma. Use it when the record clearly shows both the diabetic condition and the coma due to low blood sugar.
Clinical signs
Clinical features vary; refer to documentation. Records may describe loss of consciousness, unresponsiveness, or coma with hypoglycemia in a patient with type 1 diabetes.
When to use this code
Use this code when the provider documents type 1 diabetes and hypoglycemia with coma, or clearly links the coma to hypoglycemia in a diabetic patient. You should code it from the final diagnosis or discharge summary when available. If the note does not specify coma, check documentation.
Do not use for
Do not use this code for hypoglycemia without coma, or for coma from another cause. If the diabetes type is not documented as type 1, check documentation before assigning E10.641.
Coding tip
Confirm that both hypoglycemia and coma are documented together and that the diabetes type is type 1 before assigning the code.