Nihilistic ideas are seen in
In the 19th century, the French psychiatrist Jules Cotard described several patients with a syndrome called delire de negation. sometimes referred to as nihilistic delusional disorder or Cotard syndrome. Patients with the syndrome complain of having lost not only possessions, status, and strength but also their hea, blood, and intestines. this is a charecterstic delusion that is present in sever depression Reference: Kaplan & Sadock's Synopsis of Psychiatry, 11th edition, Page 336.
Simple schizophrenia
Paranoid schizophrenia
Cotard's syndrome
mania
Symptoms and signs in psychiatry and classification