T58.8X - Toxic effect of carbon monoxide from other source T58.8 - Toxic effect of carbon monoxide from other source T58.8X - Toxic effect of carbon monoxide from other source T58.8X1 - Toxic effect of carbon monoxide from other source, accidental (unintentional) T58.8X2 - Toxic effect of carbon monoxide from other source, intentional self-harm T58.8X3 - Toxic effect of carbon monoxide from other source, assault T58.8X4 - Toxic effect of carbon monoxide from other source, undetermined