The International Classification of Functioning, Disability and Health (ICF) is a classification published by the World Health Organisation (WHO). The German translation ("Internationale Klassifikation der Funktionsfähigkeit, Behinderung und Gesundheit", revision of October 2005) is available from DIMDI for online search, for download as PDF or as a print edition.
ICF is used across specialisations and national boundaries as a consistent standardised terminology to describe a person's functional health status, disability, social impairment and relevant environmental factors. ICF makes it possible to record systematically the bio-psycho-social aspects of the consequences of illness under consideration of contextual factors.
The classification was published by the WHO in 2001 as successor to the ICIDH; it was translated by experts from Germany, Austria and Switzerland in an honorary capacity. All rights to the ICF, including the German translation, remain with the WHO.
Predecessors of the ICF have had a significance influence on social legislation in Germany. The basis for its application is the Federal Joint Committee (G-BA) Rehabilitation Guideline and the Bundesteilhabegesetz (BHTG).
ICF is a multi-axial monohierarchical classification with alphanumeric codes. It consists of:
Thanks to the bio-psycho-social model that it is based on, the ICF is not primarily focused on deficits, i.e. it is not really a classification of the "consequences of disease". On the contrary, it classifies "components of health": body functions and structure, a list of domains of activities and participation as well as a list of environmental factors.
It is thus also resource-oriented and takes a neutral viewpoint with regard to aetiology. For that reason, the ICF can be applied to all people, not just those with disabilities. It is universally applicable.
The concept of interactions between the different components which is at the heart of the ICF is illustrated by the following diagram, the component "Personal Factors" is not included in the ICF (diagram from: International classification of functioning, disability and health: ICF, World Health Organisation 2001, p. 18):
WHO also publishes ICF-CY, a classification derived from ICF specifically for children and young people. It takes into consideration the special aspects of functions under development and the special environment of children and adolescents. The German version of ICF-CY is only available from bookshops.