S20.221 Contusion of right back wall of thoraxNon-billable ICD-10-CM code.
S20.219 Contusion of unspecified front wall of thoraxS20.219A Contusion of unspecified front wall of thorax, initial encounterS20.219D Contusion of unspecified front wall of thorax, subsequent encounterS20.219S Contusion of unspecified front wall of thorax, sequelaS20.22 Contusion of back wall of thoraxS20.221 Contusion of right back wall of thorax (this code)S20.221A Contusion of right back wall of thorax, initial encounterS20.221D Contusion of right back wall of thorax, subsequent encounterS20.221S Contusion of right back wall of thorax, sequelaS20.222 Contusion of left back wall of thoraxS20.222A Contusion of left back wall of thorax, initial encounter