ICD-10-CM > S00-T88 > S40-S49 > S45 > S45.9 > S45.99 > S45.999 S45.999 Other specified injury of unspecified blood vessel at shoulder and upper arm level, unspecified arm Non-Billable/Non-Specific Codes S45.999A..., initial encounterS45.999D..., subsequent encounterS45.999S..., sequela