Wahneinfall

Wahneinfall is alternate term for autochthonous delusions or delusional intuition.

Primary delusional disorder

This is one of the types of primary delusions in which a firm belief comes into the individual's mind 'out of the blue' or as an intuition, hence called delusional intuition.

Other delusional disorder

Other types of primary delusions include delusional mood (or atmosphere), delusional (apophanous) perception and delusional memories.

Care must be taken not to impugn an otherwise-rational individual's instinctive aversion or inexpressible sense of or belief about a thing by dismissing it as Wahneinfall.