ICD-10-CM > S00-T88 > S00-S09 > S00 > S00.5 > S00.56 S00.56 Insect bite (nonvenomous) of lip and oral cavity Non-Billable/Non-Specific Codes S00.561Insect bite (nonvenomous) of lipS00.561A..., initial encounterS00.561D..., subsequent encounterS00.561S..., sequelaS00.562Insect bite (nonvenomous) of oral cavityS00.562A..., initial encounterS00.562D..., subsequent encounterS00.562S..., sequela