T58.11
⚠ Non-billable (Header)Toxic effect of carbon monoxide from utility gas, accidental (unintentional)
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for T58.11
Child Codes (3)
T58.11XAToxic effect of carbon monoxide from utility gas, accidental (unintentional), initial encounterT58.11XDToxic effect of carbon monoxide from utility gas, accidental (unintentional), subsequent encounterT58.11XSToxic effect of carbon monoxide from utility gas, accidental (unintentional), sequela
🧪 Validate Combinations
Add T58.11 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeT58.11
BillableNo — Header code
ParentT58.1
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes20 note(s)
Child codes3
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)