Major laceration of right innominate or subclav art, init

This code signifies a significant, deep tear or cut to the right innominate (brachiocephalic) or subclavian artery. These are major blood vessels supplying the right arm, head, and neck, and such an injury typically results in severe hemorrhage and requires immediate surgical intervention.

Apply this code for patients presenting with a traumatic injury causing a substantial laceration to the specified arteries on the right side. This is commonly seen in penetrating trauma (e.g., stab wounds, gunshot wounds) or severe blunt force trauma to the chest or supraclavicular region. The "A" suffix indicates the initial encounter for this injury.

• Ensure documentation specifies "major laceration" and the right side for either the innominate or subclavian artery.
• Confirm this is the initial encounter for treatment of this specific injury; subsequent encounters will use different seventh characters.
• Code any associated external cause of injury (e.g., W25.XXXA for contact with sharp glass) and place of occurrence codes.