ICD-10-CM > S00-T88 > S60-S69 > S64 > S64.2 S64.2 Injury of radial nerve at wrist and hand level Non-Billable/Non-Specific Codes S64.20Injury of radial nerve at wrist and hand level of unspecified armS64.20XA..., initial encounterS64.20XD..., subsequent encounterS64.20XS..., sequelaS64.21Injury of radial nerve at wrist and hand level of right armS64.21XA..., initial encounterS64.21XD..., subsequent encounterS64.21XS..., sequelaS64.22Injury of radial nerve at wrist and hand level of left armS64.22XA..., initial encounterS64.22XD..., subsequent encounterS64.22XS..., sequela