ICD-10-CM > S00-T88 > T66-T78 > T71 > T71.1 > T71.19 > T71.194 T71.194 Asphyxiation due to mechanical threat to breathing due to other causes, undetermined Non-Billable/Non-Specific Codes T71.194A..., initial encounterT71.194D..., subsequent encounterT71.194S..., sequela