ICD-10-CM > S00-T88 > S60-S69 > S63 > S63.1 > S63.11 > S63.113 S63.113 Subluxation of metacarpophalangeal joint of unspecified thumb Non-Billable/Non-Specific Codes S63.113A..., initial encounterS63.113D..., subsequent encounterS63.113S..., sequela