Periodic paralysis

**Inclusion terms:** - Familial periodic paralysis - Hyperkalemic periodic paralysis (familial) - Hypokalemic periodic paralysis (familial) - Myotonic periodic paralysis (familial) - Normokalemic paralysis (familial) - Potassium sensitive periodic paralysis

**Excludes1:** - paramyotonia congenita (of von Eulenburg) (G71.19)