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G44.00 Cluster headache syndrome, unspecified
BackG44Other headache syndromesCategory7 →G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)Category7 →G44.00Cluster headache syndrome, unspecifiedCategory2 →G44.001Cluster headache syndrome, unspecified, intractableCategoryG44.009Cluster headache syndrome, unspecified, not intractableCategoryG44.01Episodic cluster headacheCategory2 →G44.011Episodic cluster headache, intractableCategoryG44.019Episodic cluster headache, not intractableCategoryG44.02Chronic cluster headacheCategory2 →G44.021Chronic cluster headache, intractableCategoryG44.029Chronic cluster headache, not intractableCategoryG44.03Episodic paroxysmal hemicraniaCategory2 →G44.031Episodic paroxysmal hemicrania, intractableCategoryG44.039Episodic paroxysmal hemicrania, not intractableCategoryG44.04Chronic paroxysmal hemicraniaCategory2 →G44.041Chronic paroxysmal hemicrania, intractableCategoryG44.049Chronic paroxysmal hemicrania, not intractableCategoryG44.05Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)Category2 →G44.051Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractableCategoryG44.059Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractableCategoryG44.09Other trigeminal autonomic cephalgias (TAC)Category2 →G44.091Other trigeminal autonomic cephalgias (TAC), intractableCategoryG44.099Other trigeminal autonomic cephalgias (TAC), not intractableCategoryG44.1Vascular headache, not elsewhere classifiedCategoryG44.2Tension-type headacheCategory3 →G44.20Tension-type headache, unspecifiedCategory2 →G44.201Tension-type headache, unspecified, intractableCategoryG44.209Tension-type headache, unspecified, not intractableCategoryG44.21Episodic tension-type headacheCategory2 →G44.211Episodic tension-type headache, intractableCategoryG44.219Episodic tension-type headache, not intractableCategoryG44.22Chronic tension-type headacheCategory2 →G44.221Chronic tension-type headache, intractableCategoryG44.229Chronic tension-type headache, not intractableCategoryG44.3Post-traumatic headacheCategory3 →G44.30Post-traumatic headache, unspecifiedCategory2 →G44.301Post-traumatic headache, unspecified, intractableCategoryG44.309Post-traumatic headache, unspecified, not intractableCategoryG44.31Acute post-traumatic headacheCategory2 →G44.311Acute post-traumatic headache, intractableCategoryG44.319Acute post-traumatic headache, not intractableCategoryG44.32Chronic post-traumatic headacheCategory2 →G44.321Chronic post-traumatic headache, intractableCategoryG44.329Chronic post-traumatic headache, not intractableCategoryG44.4Drug-induced headache, not elsewhere classifiedCategory2 →G44.40Drug-induced headache, not elsewhere classified, not intractableCategoryG44.41Drug-induced headache, not elsewhere classified, intractableCategoryG44.5Complicated headache syndromesCategory4 →G44.51Hemicrania continuaCategoryG44.52New daily persistent headache (NDPH)CategoryG44.53Primary thunderclap headacheCategoryG44.59Other complicated headache syndromeCategoryG44.8Other specified headache syndromesCategory7 →G44.81Hypnic headacheCategoryG44.82Headache associated with sexual activityCategoryG44.83Primary cough headacheCategoryG44.84Primary exertional headacheCategoryG44.85Primary stabbing headacheCategoryG44.86Cervicogenic headacheCategoryG44.89Other headache syndromeCategory
Category
G44.00
Cluster headache syndrome, unspecified
EXAMPLES
Ciliary neuralgia
Cluster headache NOS
Histamine cephalgia
Lower half migraine
Migrainous neuralgia
Cluster headache NOS
Histamine cephalgia
Lower half migraine
Migrainous neuralgia
- Chapter
- VI · Diseases of the nervous system
- Section
- G40-G47
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.