ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.2 > S20.21 > S20.219 S20.219 Contusion of unspecified front wall of thorax Non-Billable/Non-Specific Codes S20.219A..., initial encounterS20.219D..., subsequent encounterS20.219S..., sequela