T71.11 - Asphyxiation due to smothering under pillow T71.1 - Asphyxiation due to mechanical threat to breathing T71.11 - Asphyxiation due to smothering under pillow T71.111 - Asphyxiation due to smothering under pillow, accidental T71.112 - Asphyxiation due to smothering under pillow, intentional self-harm T71.113 - Asphyxiation due to smothering under pillow, assault T71.114 - Asphyxiation due to smothering under pillow, undetermined