ICD-10-CM > S00-T88 > S60-S69 > S63 > S63.6 > S63.68 S63.68 Other sprain of thumb Non-Billable/Non-Specific Codes S63.681Other sprain of right thumbS63.681A..., initial encounterS63.681D..., subsequent encounterS63.681S..., sequelaS63.682Other sprain of left thumbS63.682A..., initial encounterS63.682D..., subsequent encounterS63.682S..., sequelaS63.689Other sprain of unspecified thumbS63.689A..., initial encounterS63.689D..., subsequent encounterS63.689S..., sequela