ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.4 > S20.41 > S20.411 S20.411 Abrasion of right back wall of thorax Non-Billable/Non-Specific Codes S20.411A..., initial encounterS20.411D..., subsequent encounterS20.411S..., sequela