ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.4 > S20.47 > S20.472 S20.472 Other superficial bite of left back wall of thorax Non-Billable/Non-Specific Codes S20.472A..., initial encounterS20.472D..., subsequent encounterS20.472S..., sequela