A term used - and possibly also introduced -in 1973 by the French psychiatrist Henri Ey (1900-1977) to denote a hallucination occurring in the context of disease. Conceptually, Ey's notion of hallucination délirante would seem to resemble the " pathological hallucination of his compatriot Alexandre Jacques François Brierre de Boismont (1797-1881). Ey uses the term hallucination délirante - or hallucination, for short -in opposition to the term " éidolie hallucinosique.
References
Ey, H. (1973). Traité des hallucinations. Tomes 1 et 2. Paris: Masson et Cie., Éditeurs.
Dictionary of Hallucinations. J.D. Blom. 2010.