Classification is based on the international classification from 1981; More recent terms suggested by the ILAE (International League Against Epilepsy) task Force.
(Older term: partial seizures)
Without impairment in consciousness– (AKA Simple partial seizures)
With motor signs (ex. facial twiching or rhythmic ipsilateral extremity movements)
With sensory symptoms (ex. tingling or pereiving a certain smell)
With autonomic symptoms or signs (ex. tachycardia or diaphoresis)
With psychic symptoms (including aura, ex. sense of déjà-vu)
With impairment in consciousness - (AKA Complex Partial Seizures--Older terms: temporal lobe or psychomotor seizures)
Simple partial onset, followed by impairment of consciousness
With impairment of consciousness at onset
These seizures may be accompanied by automatism (such as lip smacking and chewing, hand wringing, patting and rubbing)
Focal seizures evolving to secondarily generalized seizures
Simple partial seizures evolving to generalized seizures
Complex partial seizures evolving to generalized seizures
Simple partial seizures evolving to complex partial seizures evolving to generalized seizures
With motor signs (ex. facial twiching or rhythmic ipsilateral extremity movements)
With sensory symptoms (ex. tingling or pereiving a certain smell)
With autonomic symptoms or signs (ex. tachycardia or diaphoresis)
With psychic symptoms (including aura, ex. sense of déjà-vu)
Simple partial onset, followed by impairment of consciousness
With impairment of consciousness at onset
These seizures may be accompanied by automatism (such as lip smacking and chewing, hand wringing, patting and rubbing)
Simple partial seizures evolving to generalized seizures
Complex partial seizures evolving to generalized seizures
Simple partial seizures evolving to complex partial seizures evolving to generalized seizures
Absence seizures (Older term: petit mal; brief dissociative states without postural changes)
Typical absence seizures
Atypical absence seizures (last longer and often include more motor involvement)
Myoclonic seizure (violent muscle contractions)
Clonic seizures (rhythmic jerking)
Tonic seizures (stiffening)
Tonic–clonic seizures (Older term: grand mal)
Atonic seizures (loss of muscle tone -> drop attacks)
Typical absence seizures
Atypical absence seizures (last longer and often include more motor involvement)
Sudden Unexpected Death in Epilepsy
Generalized tonic-clonic seizure is the major risk factor for SUDEP, and seizure freedom is strongly associated with decreased risk
Annual incidence of SUDEP in children is 1 in 4500
Incidence in adults is 1 in 1000
Annual incidence of SUDEP in children is 1 in 4500
Incidence in adults is 1 in 1000
First-time seizure
Idiopathic
Febrile seizure
Trauma 
Transient ischemic attack
Intracranial hemorrhage 
Psychogenic nonepileptic seizure
Structural CNS abnormalities