ICD-10 Code E16.2 – Hypoglycemia, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E16.2 – Hypoglycemia, unspecified
What it is
E16.2 identifies hypoglycemia when the record does not specify a cause or a more detailed type. Use it for low blood glucose documented without further clarification.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include sweating, shakiness, confusion, hunger, dizziness, or altered mental status when low blood sugar is present.
When to use this code
Use E16.2 when the provider documents hypoglycemia but does not identify whether it is medication-related, fasting-related, or due to another cause. It also fits encounters where the chart confirms low blood sugar but the etiology remains unspecified. Check documentation if diabetes or another condition is clearly linked.
Do not use for
Do not use this code when the record identifies a specific cause of hypoglycemia or a more precise diabetes-related code is documented. Avoid it for normal glucose monitoring without hypoglycemia.
Coding tip
Query for the cause and any associated condition before defaulting to E16.2.