ICD-10 Code E15 – Nondiabetic hypoglycemic coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E15 – Nondiabetic hypoglycemic coma
What it is
E15 identifies coma caused by severe hypoglycemia in a person who does not have diabetes. It is used when low blood sugar is the documented cause of loss of consciousness.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include altered mental status, confusion, seizures, or unresponsiveness, with coma attributed to hypoglycemia rather than another cause.
When to use this code
Use E15 when the record clearly states nondiabetic hypoglycemic coma or documents coma due to hypoglycemia in a patient without diabetes. You should confirm that the provider links the coma to the low blood sugar event.
If the chart only notes hypoglycemia without coma, or the cause of coma is unclear, check documentation before assigning this code. Do not infer the diagnosis from symptoms alone.
Do not use for
Do not use E15 for diabetic hypoglycemia or for hypoglycemia without coma. If the coma has a different documented cause, code that condition instead.
Coding tip
Code E15 only when the provider explicitly documents nondiabetic hypoglycemic coma and the record supports the causal relationship.