ICD-10-CM > S00-T88 > S40-S49 > S43 > S43.1 > S43.15 S43.15 Posterior dislocation of acromioclavicular joint Non-Billable/Non-Specific Codes S43.151Posterior dislocation of right acromioclavicular jointS43.151A..., initial encounterS43.151D..., subsequent encounterS43.151S..., sequelaS43.152Posterior dislocation of left acromioclavicular jointS43.152A..., initial encounterS43.152D..., subsequent encounterS43.152S..., sequelaS43.159Posterior dislocation of unspecified acromioclavicular jointS43.159A..., initial encounterS43.159D..., subsequent encounterS43.159S..., sequela