ICD-10-CM > S00-T88 > T15-T19 > T17 > T17.9 > T17.91 > T17.918 T17.918 Gastric contents in respiratory tract, part unspecified causing other injury Non-Billable/Non-Specific Codes T17.918A..., initial encounterT17.918D..., subsequent encounterT17.918S..., sequela