ICD-10-CM > S00-T88 > S80-S89 > S85 > S85.4 > S85.40 S85.40 Unspecified injury of lesser saphenous vein at lower leg level Non-Billable/Non-Specific Codes S85.401Unspecified injury of lesser saphenous vein at lower leg level, right legS85.401A..., initial encounterS85.401D..., subsequent encounterS85.401S..., sequelaS85.402Unspecified injury of lesser saphenous vein at lower leg level, left legS85.402A..., initial encounterS85.402D..., subsequent encounterS85.402S..., sequelaS85.409Unspecified injury of lesser saphenous vein at lower leg level, unspecified legS85.409A..., initial encounterS85.409D..., subsequent encounterS85.409S..., sequela