ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.9 S21.9 Open wound of unspecified part of thorax Non-Billable/Non-Specific Applicable To Open wound of thoracic wall NOS Codes S21.90Unspecified open wound of unspecified part of thoraxS21.90XA..., initial encounterS21.90XD..., subsequent encounterS21.90XS..., sequelaS21.91Laceration without foreign body of unspecified part of thoraxS21.91XA..., initial encounterS21.91XD..., subsequent encounterS21.91XS..., sequelaS21.92Laceration with foreign body of unspecified part of thoraxS21.92XA..., initial encounterS21.92XD..., subsequent encounterS21.92XS..., sequelaS21.93Puncture wound without foreign body of unspecified part of thoraxS21.93XA..., initial encounterS21.93XD..., subsequent encounterS21.93XS..., sequelaS21.94Puncture wound with foreign body of unspecified part of thoraxS21.94XA..., initial encounterS21.94XD..., subsequent encounterS21.94XS..., sequelaS21.95Open bite of unspecified part of thoraxS21.95XA..., initial encounterS21.95XD..., subsequent encounterS21.95XS..., sequela