Major laceration of right carotid artery, sequela

This code signifies a long-term complication or late effect resulting from a significant tear or cut in the right carotid artery. This type of injury can lead to chronic issues such as pseudoaneurysm, chronic dissection, or persistent neurological deficits due to compromised blood flow.

Apply this code when documenting a patient presenting with a current condition that is a direct consequence of a previously sustained major laceration to the right carotid artery. Documentation should clearly link the current sequela to the past carotid artery injury, often including a history of trauma or surgical repair.

• Requires a seventh character 'S' for sequela, indicating a late effect of the injury.
• Always sequence the sequela code first, followed by codes for the specific manifestation of the sequela (e.g., cerebral infarction due to chronic dissection).
• Distinguish from acute injuries (initial encounter) or subsequent encounters for routine care during the healing phase, which would use different seventh characters.