ICD-10-CM > S00-T88 > S60-S69 > S63 > S63.6 > S63.62 > S63.622 S63.622 Sprain of interphalangeal joint of left thumb Non-Billable/Non-Specific Codes S63.622A..., initial encounterS63.622D..., subsequent encounterS63.622S..., sequela