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G92.9

Billable

Unspecified toxic encephalopathy

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Brain damage or dysfunction caused by exposure to toxic substances, but the specific toxic agent or cause has not been identified or documented.

Coding Tips

  • •Query the provider to identify the specific toxic substance when possible to assign a more specific code
  • •Review medication lists and environmental exposures documented in the medical record

Use Additional Code

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

Code First

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

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