ICD-10-CM > S00-T88 > S60-S69 > S65 > S65.4 > S65.49 S65.49 Other specified injury of blood vessel of thumb Non-Billable/Non-Specific Codes S65.491Other specified injury of blood vessel of right thumbS65.491A..., initial encounterS65.491D..., subsequent encounterS65.491S..., sequelaS65.492Other specified injury of blood vessel of left thumbS65.492A..., initial encounterS65.492D..., subsequent encounterS65.492S..., sequelaS65.499Other specified injury of blood vessel of unspecified thumbS65.499A..., initial encounterS65.499D..., subsequent encounterS65.499S..., sequela