ICD-10-CM > S00-T88 > S50-S59 > S54 > S54.3 > S54.31 S54.31 Injury of cutaneous sensory nerve at forearm level, right arm Non-Billable/Non-Specific Codes S54.31XA..., initial encounterS54.31XD..., subsequent encounterS54.31XS..., sequela