Seizure is an unusual electrical activity in the brain that can result in a variety of changes in behavior. A person having a seizure may lose consciousness, experience a muscle spasm or jerk, lose control of their bladder or bowels, or bite the tongue.Epilepsy is a disorder characterized by recurring seizures that are not controlled by medication. It can be triggered by a variety of conditions, including an illness or a brain injury.There are different types of seizures, and they are often grouped into three classifications: generalized, absence, and focal. Generalized seizures involve abnormal electrical activity in both hemispheres of the brain. Absence seizures are also known as staring spells. Typically, they last for only 15 seconds and are followed by a return to normal alertness.Tonic-clonic seizures, on the other hand, are not swallowed and are caused by a rapid increase in body "jolts". The eyes roll back in the head, the face becomes a dull gray, and the muscles become stiff. When the seizures end, the muscles relax and the person resumes their normal state.The purpose of the study was to evaluate the accuracy of ICD-10-CM claims-based epilepsy definitions. In particular, the authors evaluated how well these codes capture the various types of seizures.The researchers reviewed medical records for 520 outpatient encounters. Of these encounters, 402 were unique patients. Eighty-five percent had a reference-standard diagnosis of epilepsy.  Seizure Alarms Another fourteen percent contained a provider-assigned primary diagnosis code of R56.X, which is used for convulsions that are not classified elsewhere.