ICD-10-CM > S00-T88 > S80-S89 > S80 > S80.2 > S80.26 S80.26 Insect bite (nonvenomous) of knee Non-Billable/Non-Specific Codes S80.261Insect bite (nonvenomous), right kneeS80.261A..., initial encounterS80.261D..., subsequent encounterS80.261S..., sequelaS80.262Insect bite (nonvenomous), left kneeS80.262A..., initial encounterS80.262D..., subsequent encounterS80.262S..., sequelaS80.269Insect bite (nonvenomous), unspecified kneeS80.269A..., initial encounterS80.269D..., subsequent encounterS80.269S..., sequela