ICD-10-CM > S00-T88 > S00-S09 > S00 > S00.8 > S00.86 S00.86 Insect bite (nonvenomous) of other part of head Non-Billable/Non-Specific Codes S00.86XA..., initial encounterS00.86XD..., subsequent encounterS00.86XS..., sequela