Chronic Migraine
What it is
Chronic migraine is defined by the ICHD-3 as headache occurring on 15 or more days per month for more than 3 months, with migraine features on at least 8 days per month.
ICD-10 Codes
How it works
Central sensitization of trigeminal nociceptive pathways leads to progressive frequency escalation and treatment resistance.
What patients need to know
You have chronic migraine, which means you get headaches 15 or more days each month. This qualifies you for newer treatments that target the specific brain pathways involved in migraine.
Prior authorization
Chronic migraine diagnosis (G43.709) establishes medical necessity for CGRP-targeted therapies, neurotoxin injections, and advanced preventive treatments.
Treating a patient with chronic migraine?
Generate a prior authorization letter for CGRP therapy or Botox with payer-specific guidance for all 50 states. Free, no account required.
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