Inj l int carotid, intcr w LOC of 30 minutes or less, subs

This code signifies a traumatic injury to the intracranial segment of the left internal carotid artery, not specified elsewhere, that resulted in a brief loss of consciousness lasting 30 minutes or less. This diagnosis indicates a follow-up encounter for this specific cerebrovascular injury.

Apply this code for patients presenting for ongoing care, follow-up, or management of a previously diagnosed intracranial left internal carotid artery injury with an associated brief loss of consciousness. Documentation must clearly state the injury location, the duration of loss of consciousness, and confirm it is a subsequent encounter.

• Ensure documentation specifies "left" internal carotid artery and "intracranial portion."
• Verify the encounter type is "subsequent" (D) and not initial (A) or sequela (S).
• Distinguish from injuries to other carotid artery segments (e.g., cervical) or those without loss of consciousness.