ICD-10-CM > S00-T88 > S60-S69 > S65 > S65.4 > S65.41 S65.41 Laceration of blood vessel of thumb Non-Billable/Non-Specific Codes S65.411Laceration of blood vessel of right thumbS65.411A..., initial encounterS65.411D..., subsequent encounterS65.411S..., sequelaS65.412Laceration of blood vessel of left thumbS65.412A..., initial encounterS65.412D..., subsequent encounterS65.412S..., sequelaS65.419Laceration of blood vessel of unspecified thumbS65.419A..., initial encounterS65.419D..., subsequent encounterS65.419S..., sequela