ICD-10-CM > S00-T88 > S60-S69 > S64 > S64.3 S64.3 Injury of digital nerve of thumb Non-Billable/Non-Specific Codes S64.30Injury of digital nerve of unspecified thumbS64.30XA..., initial encounterS64.30XD..., subsequent encounterS64.30XS..., sequelaS64.31Injury of digital nerve of right thumbS64.31XA..., initial encounterS64.31XD..., subsequent encounterS64.31XS..., sequelaS64.32Injury of digital nerve of left thumbS64.32XA..., initial encounterS64.32XD..., subsequent encounterS64.32XS..., sequela