T58: Toxic effect of carbon monoxide includes asphyxiation from carbon monoxide toxic effect of carbon monoxide from all sources sevenChrNote The appropriate 7th character is to be added to each code from category T58 sevenChrDef A: initial encounter D: subsequent encounter S: sequela |
| T58.0: Toxic effect of carbon monoxide from motor vehicle exhaust |
| T58.1: Toxic effect of carbon monoxide from utility gas |
| T58.2: Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels |
| T58.8: Toxic effect of carbon monoxide from other source |
| T58.9: Toxic effect of carbon monoxide from unspecified source |