ICD-10-CM > S00-T88 > S60-S69 > S64 > S64.2 > S64.20 S64.20 Injury of radial nerve at wrist and hand level of unspecified arm Non-Billable/Non-Specific Codes S64.20XA..., initial encounterS64.20XD..., subsequent encounterS64.20XS..., sequela