ICHD classification and diagnosis of migraine are further subdivided. Overall ICHD-3 beta distinguishes 29 migraine subtypes. The following table outlines the main subtypes and their ICHD-1, -2, -3 beta and ICD-10 codes. Migraine without aura also referred to as a "common migraine", (previously known as "hemicrania simplex") is a specific neurological disorder characterized by recurrent, throbbing headaches that often affect one side of the head (i.e., it is unilateral), are of at least moderate intensity, and may cause nausea, phonophobia or photophobia. One defining characteristic of the common migraine is a lack of the visual disturbances known as an aura. The exact International Classification of Headache
Common Core implementation by state implemented in the 2014-2015 school year. Georgia formally adopted the Standards, but withdrew from the associated tests in July 2013. While implementation had been on track for the state, State Senator William Ligon filed legislation to withdraw from the Common Core entirely. On 19 February 2015, Georgia formally renamed its standards the Georgia Standards of Excellence, which incorporate some revisions relative to the Common Core standards. Hawaii formally adopted the Standards, with full classroom implementation beginning in the 2013-14 school year and aligned assessment beginning in 2014-15. Hawaii is a governing member of SBAC. Idaho formally adopted the Standards as