2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Other Disorders Of The Central Nervous System 340-349 > Migraine 346.* > 2006 ICD-9-CM Diagnosis 346.0 Classical migraine View the most recent version of ICD-9-CM 346.0 A condition characterized by throbbing headaches which are preceded or accompanied by reversible symptoms that reflect cortical or brain stem dysfunction. The most common type of aura consists of a positive visual phenomenon, usually in the form of a scintillating scotoma. An aura may also take the form of other focal neurologic symptoms or signs, including loss of sensation or weakness in an extremity. In general, the aura precedes the headache by less than 60 minutes, develops over 4 minutes or longer, and has a duration of less than one hour. 346.0 is a non-specific code that cannot be used to specify a diagnosis 346.0 contains 3 index entries View the ICD-9-CM Volume 1 346.* hierarchy Alternate Terminology Migraine preceded or accompanied by transient focal neurological phenomena Migraine with aura  Index entries containing 346.0: Migraine (idiopathic) 346.9 with aura 346.0 classical 346.0 Syndrome - see also Disease migraine 346.0