ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
Mental or behavioural symptoms, signs or clinical findings
MB26 — Symptoms or signs involving content of thought
MB26.0 — Delusion
MB26.0C — Delusion of impoverishment

ICD-11 MB26.0C — Delusion of impoverishment

A delusional conviction that one is currently destitute or soon will be, or that one does not have the necessary financial resources to live on, in spite of evidence to the contrary.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.