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
MB26.5 — Obsessions

ICD-11 MB26.5 — Obsessions

Repetitive and persistent thoughts (e.g., of contamination), images (e.g., of violent scenes), or impulses/urges (e.g., to stab someone) that are experienced as intrusive, unwanted, and are commonly associated with anxiety.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.