ICD-10-CM > S00-T88 > S40-S49 > S43 > S43.2 > S43.22 > S43.225 S43.225 Posterior dislocation of left sternoclavicular joint Non-Billable/Non-Specific Codes S43.225A..., initial encounterS43.225D..., subsequent encounterS43.225S..., sequela