ICD-10-CM > S00-T88 > S80-S89 > S85 > S85.4 > S85.40 > S85.402 S85.402 Unspecified injury of lesser saphenous vein at lower leg level, left leg Non-Billable/Non-Specific Codes S85.402A..., initial encounterS85.402D..., subsequent encounterS85.402S..., sequela