Chronic migraine w/o aura, not intractable, w/o stat migr

This code signifies a persistent headache disorder characterized by frequent migraine attacks, occurring 15 or more days per month for over three months, without the presence of an aura. The condition is not refractory to treatment and does not involve a prolonged, severe migraine episode lasting more than 72 hours.

Apply this code when documentation clearly indicates a diagnosis of chronic migraine, specifically noting the absence of aura. The patient's medical record should also confirm that the migraine is responsive to current treatment and does not meet criteria for status migrainosus. This code is appropriate for ongoing management of chronic migraine that is not considered intractable.

• Ensure documentation explicitly states "without aura" and "not intractable."
• Distinguish from episodic migraine (fewer than 15 headache days per month) and intractable chronic migraine.
• Do not use if the patient is experiencing status migrainosus; a more specific code would be required.