ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.3 > S20.36 > S20.364 S20.364 Insect bite (nonvenomous) of middle front wall of thorax Non-Billable/Non-Specific Codes S20.364A..., initial encounterS20.364D..., subsequent encounterS20.364S..., sequela