ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
Mental or behavioural symptoms, signs or clinical findings
MB25 — Symptoms or signs involving form of thought
MB25.0 — Symptoms and signs of thought disorder
MB25.02 — Disorganised thinking

ICD-11 MB25.02 — Disorganised thinking

A disturbance in the associative thought process typically manifested in speech in which the person shifts suddenly from one topic to another that is unrelated or minimally related to the first. The individual gives no indication of being aware of the disconnectedness or illogicality of their thinking.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.