ICD-11 classes
06 Mental, behavioural or neurodevelopmental disorders
Neurocognitive disorders

ICD-11 Neurocognitive disorders

Neurocognitive disorders are characterised by primary clinical deficits in cognitive functioning that are acquired rather than developmental. That is, neurocognitive disorders do not include disorders characterised by deficits in cognitive function that are present from birth or that typically arise during the developmental period, which are classified in the grouping neurodevelopmental disorders. Rather, neurocognitive disorders represent a decline from a previously attained level of functioning. Although cognitive deficits are present in many mental disorders (e.g., schizophrenia, bipolar disorders), only disorders whose core features are cognitive are included in the neurocognitive Disorders grouping. In cases where the underlying pathology and etiology for neurocognitive disorders can be determined, the identified etiology should be classified separately.

The diagnosis includes nothing.

Diagnosis contains 7 clarifying diagnoses:

1. 6D70 — Delirium
   It contains 5 clarifying diagnoses.
2. 6D71 — Mild neurocognitive disorder
3. 6D72 — Amnestic disorder
   It contains 4 clarifying diagnoses.
4. Dementia
   It contains 9 clarifying diagnoses.
5. 6E67 — Secondary neurocognitive syndrome
   It contains 1 clarifying diagnosis.
6. 6E0Y — Other specified neurocognitive disorders
7. 6E0Z — Neurocognitive disorders, unspecified