G44 - Other headache syndromes
Excludes 1:
-headache NOS (R51)
Excludes 2:
-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
G44.001 - Cluster headache syndrome, unspecified, intractable
G44.009 - Cluster headache syndrome, unspecified, not intractable
G44.01 - Episodic cluster headache
G44.011 - Episodic cluster headache, intractable
G44.019 - Episodic cluster headache, not intractable
G44.02 - Chronic cluster headache
G44.021 - Chronic cluster headache, intractable
G44.029 - Chronic cluster headache, not intractable
G44.03 - Episodic paroxysmal hemicrania
G44.031 - Episodic paroxysmal hemicrania, intractable
G44.039 - Episodic paroxysmal hemicrania, not intractable
G44.04 - Chronic paroxysmal hemicrania
G44.041 - Chronic paroxysmal hemicrania, intractable
G44.049 - Chronic paroxysmal hemicrania, not intractable
G44.05 - Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)
G44.051 - Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractable
G44.059 - Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable
G44.09 - Other trigeminal autonomic cephalgias (TAC)
G44.091 - Other trigeminal autonomic cephalgias (TAC), intractable
G44.099 - Other trigeminal autonomic cephalgias (TAC), not intractable
G44.1 - Vascular headache, not elsewhere classified
G44.2 - Tension-type headache
G44.20 - Tension-type headache, unspecified
G44.201 - Tension-type headache, unspecified, intractable
G44.209 - Tension-type headache, unspecified, not intractable
G44.21 - Episodic tension-type headache
G44.211 - Episodic tension-type headache, intractable
G44.219 - Episodic tension-type headache, not intractable
G44.22 - Chronic tension-type headache
G44.221 - Chronic tension-type headache, intractable
G44.229 - Chronic tension-type headache, not intractable
G44.3 - Post-traumatic headache
G44.30 - Post-traumatic headache, unspecified
G44.301 - Post-traumatic headache, unspecified, intractable
G44.309 - Post-traumatic headache, unspecified, not intractable
G44.31 - Acute post-traumatic headache
G44.311 - Acute post-traumatic headache, intractable
G44.319 - Acute post-traumatic headache, not intractable
G44.32 - Chronic post-traumatic headache
G44.321 - Chronic post-traumatic headache, intractable
G44.329 - Chronic post-traumatic headache, not intractable
G44.4 - Drug-induced headache, not elsewhere classified
G44.40 - Drug-induced headache, not elsewhere classified, not intractable
G44.41 - Drug-induced headache, not elsewhere classified, intractable
G44.5 - Complicated headache syndromes
G44.51 - Hemicrania continua
G44.52 - New daily persistent headache (NDPH)
G44.53 - Primary thunderclap headache
G44.59 - Other complicated headache syndrome
G44.8 - Other specified headache syndromes
G44.81 - Hypnic headache
G44.82 - Headache associated with sexual activity
G44.83 - Primary cough headache
G44.84 - Primary exertional headache
G44.85 - Primary stabbing headache
G44.89 - Other headache syndrome