ICD-10-CM > S00-T88 > S60-S69 > S64 > S64.0 > S64.01 S64.01 Injury of ulnar nerve at wrist and hand level of right arm Non-Billable/Non-Specific Codes S64.01XA..., initial encounterS64.01XD..., subsequent encounterS64.01XS..., sequela