Alphabetic Index | Tabular List | Neoplasms | Drugs and Chemicals | Injuries
G44
Other headache syndromes
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
G44.049
Chronic paroxysmal hemicrania, not intractable
  • Chronic paroxysmal hemicrania NOS
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
  • Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) NOS
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
  • cluster headache (G44.0)
  • complicated headache syndromes (G44.5-)
  • drug-induced headache (G44.4-)
  • migraine (G43.-)
  • other specified headache syndromes (G44.8-)
  • post-traumatic headache (G44.3-)
  • tension-type headache (G44.2-)
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
  • Tension headache NOS
G44.21
Episodic tension-type headache
G44.211
Episodic tension-type headache, intractable
G44.219
Episodic tension-type headache, not intractable
  • Episodic tension-type headache NOS
G44.22
Chronic tension-type headache
G44.221
Chronic tension-type headache, intractable
G44.229
Chronic tension-type headache, not intractable
  • Chronic tension-type headache NOS
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
  • Post-traumatic headache NOS
G44.31
Acute post-traumatic headache
G44.311
Acute post-traumatic headache, intractable
G44.319
Acute post-traumatic headache, not intractable
  • Acute post-traumatic headache NOS
G44.32
Chronic post-traumatic headache
G44.321
Chronic post-traumatic headache, intractable
G44.329
Chronic post-traumatic headache, not intractable
  • Chronic post-traumatic headache NOS
G44.4
Drug-induced headache, not elsewhere classified
  • Medication overuse headache
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
  • Orgasmic headache
  • Preorgasmic headache
G44.83
Primary cough headache
G44.84
Primary exertional headache
G44.85
Primary stabbing headache
G44.89
Other headache syndrome