Is G44 a billable code?
No. G44 is a header code that groups 40 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
G44: Other headache syndromes
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
G44 groups related diagnoses under other headache syndromes. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under 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
G44 questions
What does G44 mean?
G44 is the ICD-10-CM code for Other headache syndromes. It is in chapter 6, Diseases of the nervous system (G00-G99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.