ICD-10-CM > S00-T88 > S60-S69 > S64 > S64.2 > S64.21 S64.21 Injury of radial nerve at wrist and hand level of right arm Non-Billable/Non-Specific Codes S64.21XA..., initial encounterS64.21XD..., subsequent encounterS64.21XS..., sequela