ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.3 > S20.37 > S20.374 S20.374 Other superficial bite of middle front wall of thorax Non-Billable/Non-Specific Codes S20.374A..., initial encounterS20.374D..., subsequent encounterS20.374S..., sequela