F05.1 is the ICD-10 code for Delirium superimposed on dementia. It is a four-character subcategory of F05 (Delirium, not induced by alcohol and other psychoactive substances), the most specific level in the WHO edition. It belongs to the block F00–F09 (Organic, including symptomatic, mental disorders) in Chapter V, Mental and behavioural disorders.
- Code type
- Subcategory (4 characters)
- Chapter
- V · F00–F99
- Classification
- WHO ICD-10, 2019 version
Coding notes
- Use additional code, if desired, to identify the type of dementia.
F05.1 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
F05.1Delirium i forbindelse med demens
DF051Delir ved demens
F05.1Dementiaan liittyvä sekavuustila (delirium)
F05.1Delir bei Demenz
F05.1Délirium surajouté à une démence
F05.1delirium, gesuperponeerd op dementie
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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