Headache - R51

 Type 2 Excludes

• atypical face pain (G50.1)
• migraine and other headache syndromes (G43-G44)
• trigeminal neuralgia (G50.0)

 Codes

• R51.0 - Headache with orthostatic component, not elsewhere classified
• R51.9 - Headache, unspecified