ICD-10-CM > S00-T88 > S60-S69 > S63 > S63.2 > S63.23 > S63.239 S63.239 Subluxation of proximal interphalangeal joint of unspecified finger Non-Billable/Non-Specific Codes S63.239A..., initial encounterS63.239D..., subsequent encounterS63.239S..., sequela