International Classification of Function

The International Classification of Functioning, Disability and Health, known more commonly as ICF, is a classification of health and health-related domains. As the functioning and disability of an individual occurs in a context, ICF also includes a list of environmental factors.  The classification is a good assessment tool which works well within an OT context.

http://www.who.int/classifications/icf/icfbeginnersguide.pdf?ua=1

http://www.canchild.ca/en/resources/KeepingCurrentICF.pdf