ICD-10-CM > S00-T88 > S40-S49 > S43 > S43.5 > S43.50 S43.50 Sprain of unspecified acromioclavicular joint Non-Billable/Non-Specific Codes S43.50XA..., initial encounterS43.50XD..., subsequent encounterS43.50XS..., sequela