Headache caused by cervical carotid or vertebral artery dissection and persisting for more than 3 months after the dissection has stabilized.
- Headache previously diagnosed as 220.127.116.11 Acute headache or facial or neck pain attributed to cervical carotid or vertebral artery dissection and fulfilling criterion C
- The dissection has stabilized, spontaneously or through treatment
- Headache has persisted for >3 months after stabilization of the dissection
- Not better accounted for by another ICHD-3 diagnosis.