Chronic migraine without aura
ICD-10 G43.7 is a billable code used to indicate a diagnosis of chronic migraine without aura.
Chronic migraine without aura is characterized by the occurrence of headache episodes that meet the criteria for migraine without aura on 15 or more days per month over a period of three months. These headaches typically present as unilateral, pulsating, moderate to severe in intensity, and are often aggravated by routine physical activity. Patients may experience associated symptoms such as nausea, vomiting, and photophobia or phonophobia. Unlike episodic migraines, chronic migraines can lead to significant disability and impact the quality of life. The pathophysiology involves complex neurovascular mechanisms, including the activation of the trigeminovascular system, which contributes to the headache and associated symptoms. Chronic migraines may be triggered by various factors, including stress, hormonal changes, sleep disturbances, and dietary factors. Preventive treatments, such as beta-blockers, anticonvulsants, and certain antidepressants, are often employed to reduce the frequency and severity of migraine attacks.
Detailed headache diaries, treatment response documentation, and comorbidity assessments.
Patients presenting with frequent headaches, medication overuse, and those requiring preventive therapy.
Ensure comprehensive documentation of headache characteristics and treatment history.
Complete medical history, including family history of migraines and lifestyle factors.
Patients with recurrent headaches seeking management options and referrals to specialists.
Document lifestyle modifications and patient education efforts.
Used for follow-up visits for chronic migraine management.
Document history of present illness, review of systems, and treatment plan.
Neurologists may require more detailed neurological examinations.
Chronic migraine is defined by the occurrence of headache on 15 or more days per month for at least three months, while episodic migraine occurs less frequently.
