ICD-11

The ICD-11 is the global system for classifying diseases and health conditions, including mental health conditions. ICD stands for International Classification of Diseases, and 11 is the current edition.

This term is specific to research interpretation and is defined on AnxietyResearch. Shrinktionary, the network's language layer, doesn't currently carry a canonical entry for it.

The ICD is published by the World Health Organization and is used worldwide for health records, statistics, and billing. The 11th edition came into effect in 2022. It includes definitions for anxiety and related disorders. The ICD and the DSM cover much of the same ground and broadly agree, but they're organized differently and don't match on every detail.

Research and health data from outside the United States often use ICD definitions. When comparing anxiety statistics across countries, part of any difference can come from the two systems defining a disorder slightly differently, rather than from a true difference in how common it is.

A global health report on anxiety prevalence would typically use ICD-11 categories, while a US study would more often use DSM-5-TR.

When comparing numbers across countries or sources, check which system was used. ICD-11 and DSM-5-TR are close, not identical. Small differences in criteria can produce real differences in counts.