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migrainosus NOS

G43.909 Migraine, unspecified, not intractable, without status migrainosus

Migraine NOS

G43.91 Migraine, unspecified, intractable

G43.911 Migraine, unspecified, not intractable, with status migrainosus

G43.919 Migraine, unspecified, not intractable, without status migrainosus

G44 Other headache syndromes

Excludes1: headache NOS (R51)

Excludes2: atypical facial pain (G50.1)

headache due to lumbar puncture (G97.1)

migraines (G43.-)

trigeminal neuralgia (G50.0)

G44.0 Cluster headaches and other trigeminal autonomic cephalgias (TAC)

G44.00 Cluster headache syndrome, unspecified

Ciliary neuralgia

Cluster headache NOS

Histamine cephalgia

Lower half migraine

Migrainous neuralgia

G44.001 Cluster headache syndrome, unspecified, intractable

G44.009 Cluster headache syndrome, unspecified, not intractable

Cluster headache syndrome NOS

G44.01 Episodic cluster headache

G44.011 Episodic cluster headache, intractable

G44.019 Episodic cluster headache, not intractable

Episodic cluster headache NOS

G44.02 Chronic cluster headache

G44.021 Chronic cluster headache, intractable

G44.029 Chronic cluster headache, not intractable

Chronic cluster headache NOS

G44.03 Episodic paroxysmal hemicrania

Paroxysmal hemicrania NOS

G44.031 Episodic paroxysmal hemicrania, intractable

G44.039 Episodic paroxysmal hemicrania, not intractable

Episodic paroxysmal hemicrania NOS

G44.04 Chronic paroxysmal hemicrania

G44.041 Chronic paroxysmal hemicrania, intractable

G44.