ICD-10-CM > S00-T88 > S40-S49 > S43 > S43.2 > S43.21 > S43.215 S43.215 Anterior dislocation of left sternoclavicular joint Non-Billable/Non-Specific Codes S43.215A..., initial encounterS43.215D..., subsequent encounterS43.215S..., sequela