ICD-10-CM > S00-T88 > S80-S89 > S84 > S84.2 > S84.21 S84.21 Injury of cutaneous sensory nerve at lower leg level, right leg Non-Billable/Non-Specific Codes S84.21XA..., initial encounterS84.21XD..., subsequent encounterS84.21XS..., sequela