Unspecified toxic encephalopathy

📋Clinical Description

This code signifies a brain disorder caused by exposure to a toxic substance, where the specific toxin or the precise nature of the encephalopathy is not documented. It indicates a generalized cerebral dysfunction resulting from an exogenous or endogenous toxin, manifesting with symptoms such as altered mental status, cognitive impairment, or neurological deficits.

🎯When to Use

Use this code when documentation clearly states "toxic encephalopathy" but lacks specificity regarding the causative agent or the exact type of encephalopathy. This is appropriate when the physician has not identified the specific toxin (e.g., lead, alcohol, medications) or the specific pathological changes in the brain.

💡Coding Tips

Always strive for a more specific code if the toxic agent is known (e.g., T51.0X1A for toxic effect of ethanol).
Do not use this code if the encephalopathy is due to a metabolic derangement not directly caused by an exogenous toxin (e.g., hepatic encephalopathy, uremic encephalopathy).
Sequence this code after the underlying cause of the toxic exposure, if known and applicable.

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Clinical Notes

Code first

poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4)

Use additional code

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Code Hierarchy

▲G92Toxic encephalopathy

G92.9(current)

Same Category

G92Toxic encephalopathy G92.0Immune effector cell-associated neurotoxicity syndrome G92.00Immune effor cell-associated neurotoxicity synd, grade unsp G92.01Immune effector cell-associated neurotoxicity synd, grade 1 G92.02Immune effector cell-associated neurotoxicity synd, grade 2 G92.03Immune effector cell-associated neurotoxicity synd, grade 3