Searching for Anankastic Personality Disorder and landing on articles about OCPD is not a mistake. Anankastic Personality Disorder is the term used in the ICD-11, the diagnostic manual used across Australia and much of the world. Obsessive-Compulsive Personality Disorder is the equivalent term in the DSM-5, the manual more commonly referenced in psychology research. Both describe the same underlying pattern: a rigid preoccupation with order, rules, perfectionism and control that interferes with flexibility and with connection to other people.
A 2021 scoping review examined how the ICD-11 reshaped this diagnosis, moving away from a simple checklist towards a more dimensional model called anankastia. Rather than a yes or no diagnosis, the model describes how strongly someone leans towards rigid standards and controlling behaviour. The researchers found the traits captured under this newer model overlap closely with the older DSM-5 criteria, and that the dimensional approach may better reflect how these traits actually present in real people.
The practical consequence is worth knowing. Most published research uses the term OCPD, so anyone trying to understand Anankastic PD will find the evidence filed under the other name.
If rigid perfectionism, control, or difficulty delegating are affecting your relationships or wellbeing, this is a treatable pattern and a psychologist can help.