ICD-10 Code G92.8 – Other toxic encephalopathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G92.8 – Other toxic encephalopathy
What it is
G92.8 identifies toxic encephalopathy caused by a toxic substance or exposure when the specific toxic agent is not otherwise classified here. Use it for brain dysfunction linked to toxicity, not for simple confusion alone.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include altered mental status, confusion, delirium, decreased alertness, or other neurologic changes consistent with toxic brain injury.
When to use this code
Use this code when the provider documents toxic encephalopathy and the record supports a toxic cause, but the condition is not captured by a more specific code. It may apply in poisoning, medication toxicity, or exposure-related illness. Check documentation for the causal substance and any additional codes needed.
Do not use for
Do not use it for metabolic, hypoxic, or septic encephalopathy unless toxic encephalopathy is specifically documented. Also avoid it when the cause is clearly identified by a more specific ICD-10-CM code.
Coding tip
Code the toxic cause first when required, and verify whether the provider links the encephalopathy to the exposure.