ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.9 > S55.90 > S55.901 S55.901 Unspecified injury of unspecified blood vessel at forearm level, right arm Non-Billable/Non-Specific Codes S55.901A..., initial encounterS55.901D..., subsequent encounterS55.901S..., sequela