| Full description | Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) |
| Billable | No — use a more specific child code |
| Chapter | Chapter 6: Diseases of the nervous system (G00-G99) |
| Section | Episodic and paroxysmal disorders (G40-G47) |
| Parent code | G44.0 — Cluster headaches and oth trigeminal autonm cephalgias (TAC) |