G44.40 Drug-induced headache, not elsewhere classified, not intractable

The following code(s) above G44.40 may contain annotation back-references that may be applicable to G44.40:

• Diseases of the nervous system (G00-G99)
• Drug-induced headache, not elsewhere classified (G44.4)

Diagnosis Index

Headache R51.9
- Drug-induced NEC G44.40
-- Not Intractable G44.40
- Medication Overuse G44.40
-- Not Intractable G44.40
- Rebound G44.40
-- Not Intractable G44.40