ICD-10-CM > S00-T88 > S40-S49 > S43 > S43.2 > S43.21 > S43.216 S43.216 Anterior dislocation of unspecified sternoclavicular joint Non-Billable/Non-Specific Codes S43.216A..., initial encounterS43.216D..., subsequent encounterS43.216S..., sequela