ICD-10 Code E08.64 – Diabetes mellitus due to underlying condition with hypoglycemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.64 – Diabetes mellitus due to underlying condition with hypoglycemia
What it is
This code identifies diabetes caused by another underlying condition when the patient has hypoglycemia. Use it for secondary diabetes, not primary type 1 or type 2 diabetes.
Clinical signs
Clinical features vary; refer to documentation. You may see symptoms of low blood sugar such as sweating, shakiness, confusion, or weakness, along with documented diabetes due to another disease or condition.
When to use this code
Use E08.64 when the provider documents diabetes mellitus due to an underlying condition and also documents hypoglycemia. The record should support both the secondary cause and the low-glucose complication. If the cause or complication is unclear, check documentation before coding.
Do not use for
Do not use this code for uncomplicated diabetes, type 1 diabetes, or type 2 diabetes with hypoglycemia. If hypoglycemia is present without documented diabetes due to another condition, use the more accurate diagnosis.
Coding tip
Confirm the underlying condition and the hypoglycemia are both documented before assigning E08.64.