ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.1 > S21.13 S21.13 Puncture wound without foreign body of front wall of thorax without penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.131Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavityS21.131A..., initial encounterS21.131D..., subsequent encounterS21.131S..., sequelaS21.132Puncture wound without foreign body of left front wall of thorax without penetration into thoracic cavityS21.132A..., initial encounterS21.132D..., subsequent encounterS21.132S..., sequelaS21.139Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavityS21.139A..., initial encounterS21.139D..., subsequent encounterS21.139S..., sequela