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