Injury of r int carotid, intcr w/o LOC, sequela

This code signifies a long-term complication or late effect resulting from a previous injury to the intracranial segment of the right internal carotid artery, where the initial injury did not involve a loss of consciousness and is not classified elsewhere. It describes residual neurological deficits or other lasting consequences directly attributable to the original trauma.

Use this code when documenting a patient presenting with a sequela (e.g., chronic headache, persistent neurological deficit, or vascular compromise) directly linked to a past injury of the right intracranial internal carotid artery without initial loss of consciousness. Documentation must clearly state the injury occurred in the past and the current condition is a residual effect.

• Ensure documentation explicitly states "sequela" or "late effect" and links the current condition to the previous injury.
• This code requires a seventh character 'S' for sequela; do not use 'A' (initial encounter) or 'D' (subsequent encounter).
• Code any specific residual neurological deficits or other sequelae (e.g., hemiparesis, aphasia) as additional diagnoses.