ICD-10-CM > S00-T88 > T66-T78 > T71 > T71.1 > T71.11 > T71.111 > T71.111A T71.111A Asphyxiation due to smothering under pillow, accidental, initial encounter Billable/Specific Copy Code Copy Description Applicable To Asphyxiation due to smothering under pillow NOS