ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.2 S20.2 Contusion of thorax Non-Billable/Non-Specific Codes S20.20Contusion of thorax, unspecifiedS20.20XA..., initial encounterS20.20XD..., subsequent encounterS20.20XS..., sequelaS20.21Contusion of front wall of thoraxS20.211Contusion of right front wall of thoraxS20.211A..., initial encounterS20.211D..., subsequent encounterS20.211S..., sequelaS20.212Contusion of left front wall of thoraxS20.212A..., initial encounterS20.212D..., subsequent encounterS20.212S..., sequelaS20.213Contusion of bilateral front wall of thoraxS20.213A..., initial encounterS20.213D..., subsequent encounterS20.213S..., sequelaS20.214Contusion of middle front wall of thoraxS20.214A..., initial encounterS20.214D..., subsequent encounterS20.214S..., sequelaS20.219Contusion of unspecified front wall of thoraxS20.219A..., initial encounterS20.219D..., subsequent encounterS20.219S..., sequelaS20.22Contusion of back wall of thoraxS20.221Contusion of right back wall of thoraxS20.221A..., initial encounterS20.221D..., subsequent encounterS20.221S..., sequelaS20.222Contusion of left back wall of thoraxS20.222A..., initial encounterS20.222D..., subsequent encounterS20.222S..., sequelaS20.223Contusion of bilateral back wall of thoraxS20.223A..., initial encounterS20.223D..., subsequent encounterS20.223S..., sequelaS20.224Contusion of middle back wall of thoraxS20.224A..., initial encounterS20.224D..., subsequent encounterS20.224S..., sequelaS20.229Contusion of unspecified back wall of thoraxS20.229A..., initial encounterS20.229D..., subsequent encounterS20.229S..., sequela