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

This code signifies a long-term complication or late effect resulting from a past injury to the intracranial segment of the left internal carotid artery, where the initial injury did not involve a loss of consciousness and is not classified elsewhere. This could include residual neurological deficits, chronic pain, or other persistent issues directly attributable to the original trauma.

Apply this code when documenting a patient presenting with a current condition or symptom that is a direct consequence of a previous injury to the intracranial left internal carotid artery. The medical record must clearly link the current sequela to the past injury and specify that the original injury occurred without loss of consciousness.

• Always sequence the sequela code first, followed by codes for the specific residual condition(s).
• Ensure documentation explicitly states "sequela" or "late effect" and links the current problem to the old injury.
• Distinguish from acute injury codes (S06.820A, D) which are used for initial encounters or subsequent care of the active injury.