ICD-10-CM > S00-T88 > S80-S89 > S80 > S80.2 > S80.26 > S80.261 S80.261 Insect bite (nonvenomous), right knee Non-Billable/Non-Specific Codes S80.261A..., initial encounterS80.261D..., subsequent encounterS80.261S..., sequela