ICD-10-CM > S00-T88 > T66-T78 > T71 > T71.1 > T71.11 > T71.113 T71.113 Asphyxiation due to smothering under pillow, assault Non-Billable/Non-Specific Codes T71.113A..., initial encounterT71.113D..., subsequent encounterT71.113S..., sequela