ICD-10 Code E11.649 – Type 2 diabetes mellitus with hypoglycemia without coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.649 – Type 2 diabetes mellitus with hypoglycemia without coma
What it is
This code identifies type 2 diabetes mellitus when the patient has hypoglycemia, but not coma. It tells you the diabetes is complicated by low blood sugar and the episode is not severe enough to include coma.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include symptoms of hypoglycemia such as shakiness, sweating, confusion, dizziness, or weakness, with the patient remaining conscious.
When to use this code
Use E11.649 when the record clearly links hypoglycemia to type 2 diabetes and states there is no coma. You should also use it when the clinician documents diabetic hypoglycemia, hypoglycemic episode, or low blood sugar in a patient with type 2 diabetes. Check documentation if the cause is unclear.
Do not use for
Do not use this code for hypoglycemia with coma, which is coded separately. Do not use it when hypoglycemia is unrelated to diabetes or when the diabetes type is not type 2.
Coding tip
Confirm that the provider documents both type 2 diabetes and hypoglycemia without coma before assigning E11.649.