ICD-10-CM > S00-T88 > S60-S69 > S63 > S63.2 > S63.23 > S63.233 S63.233 Subluxation of proximal interphalangeal joint of left middle finger Non-Billable/Non-Specific Codes S63.233A..., initial encounterS63.233D..., subsequent encounterS63.233S..., sequela