ICD-10-CM category
G44 Other headache syndromes
G44 is a category, not a billable code. Report one of the 40 complete codes below.
Codes in G44
- G44.001Cluster headache syndrome, unspecified, intractable
- G44.009Cluster headache syndrome, unspecified, not intractable
- G44.011Episodic cluster headache, intractable
- G44.019Episodic cluster headache, not intractable
- G44.021Chronic cluster headache, intractable
- G44.029Chronic cluster headache, not intractable
- G44.031Episodic paroxysmal hemicrania, intractable
- G44.039Episodic paroxysmal hemicrania, not intractable
- G44.041Chronic paroxysmal hemicrania, intractable
- G44.049Chronic paroxysmal hemicrania, not intractable
- G44.051Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractable
- G44.059Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable
- G44.091Other trigeminal autonomic cephalgias (TAC), intractable
- G44.099Other trigeminal autonomic cephalgias (TAC), not intractable
- G44.1Vascular headache, not elsewhere classified
- G44.201Tension-type headache, unspecified, intractable
- G44.209Tension-type headache, unspecified, not intractable
- G44.211Episodic tension-type headache, intractable
- G44.219Episodic tension-type headache, not intractable
- G44.221Chronic tension-type headache, intractable
- G44.229Chronic tension-type headache, not intractable
- G44.301Post-traumatic headache, unspecified, intractable
- G44.309Post-traumatic headache, unspecified, not intractable
- G44.311Acute post-traumatic headache, intractable
- G44.319Acute post-traumatic headache, not intractable
- G44.321Chronic post-traumatic headache, intractable
- G44.329Chronic post-traumatic headache, not intractable
- G44.40Drug-induced headache, not elsewhere classified, not intractable
- G44.41Drug-induced headache, not elsewhere classified, intractable
- G44.51Hemicrania continua
- G44.52New daily persistent headache (NDPH)
- G44.53Primary thunderclap headache
- G44.59Other complicated headache syndrome
- G44.81Hypnic headache
- G44.82Headache associated with sexual activity
- G44.83Primary cough headache
- G44.84Primary exertional headache
- G44.85Primary stabbing headache
- G44.86Cervicogenic headache
- G44.89Other headache syndrome
Outside the US? G44 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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