ICD-10-CM > S00-T88 > T15-T19 > T17 > T17.2 > T17.21 T17.21 Gastric contents in pharynx Non-Billable/Non-Specific Applicable To Aspiration of gastric contents into pharynxVomitus in pharynx Codes T17.210Gastric contents in pharynx causing asphyxiationT17.210A..., initial encounterT17.210D..., subsequent encounterT17.210S..., sequelaT17.218Gastric contents in pharynx causing other injuryT17.218A..., initial encounterT17.218D..., subsequent encounterT17.218S..., sequela