ICD-10-CM > S00-T88 > T51-T65 > T58 > T58.2 > T58.2X > T58.2X1 T58.2X1 Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional) Non-Billable/Non-Specific Codes T58.2X1A..., initial encounterT58.2X1D..., subsequent encounterT58.2X1S..., sequela