ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
Mental or behavioural symptoms, signs or clinical findings
MB28 — Symptoms or signs related to personality features
MB28.C — Perfectionism

ICD-11 MB28.C — Perfectionism

An inclination to demand flawlessness of oneself or others and setting excessively high standards.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.