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G92.9

✓ Billable

Unspecified toxic encephalopathy

Diseases of the nervous system (G00-G99)

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📋 Code Instructions

  • • 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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Code Information

CodeG92.9
BillableYes
ParentG92
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)