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