ICD-10 Code E16.A2 – Hypoglycemia level 2 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E16.A2 – Hypoglycemia level 2
What it is
E16.A2 identifies hypoglycemia level 2, a documented episode of low blood glucose that is clinically significant. Use it when the record specifically states level 2 hypoglycemia.
Clinical signs
Clinical features vary; refer to documentation. Hypoglycemia may present with sweating, shakiness, confusion, dizziness, or other neuroglycopenic symptoms, but you should code only what is explicitly recorded.
When to use this code
Use this code when the provider documents hypoglycemia level 2 in the assessment, problem list, or encounter note. It may also apply when the condition is clearly identified as a distinct diagnosis during the visit. Check documentation if the note only says “low blood sugar” without a level.
Do not use for
Do not use this code for unspecified hypoglycemia or for abnormal glucose results without a documented diagnosis. Do not assign it when the chart does not confirm level 2.
Coding tip
Code the exact hypoglycemia level stated by the provider, and query if the level is unclear.