G44.011 Episodic cluster headache, intractable

The following code(s) above G44.011 may contain annotation back-references that may be applicable to G44.011:

• Diseases of the nervous system (G00-G99)
• Episodic cluster headache (G44.01)

Diagnosis Index

Headache R51.9
- Cluster G44.009
-- Episodic G44.019
--- Intractable G44.011