ICD-10-CM > S00-T88 > S80-S89 > S85 > S85.4 > S85.49 > S85.491 S85.491 Other specified injury of lesser saphenous vein at lower leg level, right leg Non-Billable/Non-Specific Codes S85.491A..., initial encounterS85.491D..., subsequent encounterS85.491S..., sequela