Perst migraine aura w/o cerebral infrc, ntrct, w stat migr

This code signifies a severe and ongoing migraine with aura symptoms that persist for more than one week after the headache phase, without evidence of a stroke. The condition is resistant to standard treatments and has progressed to a continuous, debilitating state lasting over 72 hours.

Apply this code when documentation clearly indicates a patient experiencing persistent migraine aura (lasting over 7 days) without cerebral infarction, where the migraine is intractable (difficult to treat) and has evolved into status migrainosus (a severe migraine attack lasting more than 72 hours). Supporting documentation should include neurological exam findings, imaging results ruling out infarction, and treatment failures.

• Ensure documentation explicitly states "persistent aura," "intractable," and "status migrainosus" to support this specific code.
• Differentiate from G43.501 (not intractable) and G43.519 (not specified as intractable) based on treatment resistance.
• Always confirm the absence of cerebral infarction through imaging reports (e.g., MRI, CT scan) to avoid miscoding.