ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.1 > S20.16 > S20.169 S20.169 Insect bite (nonvenomous) of breast, unspecified breast Non-Billable/Non-Specific Codes S20.169A..., initial encounterS20.169D..., subsequent encounterS20.169S..., sequela