Table 2

New classifications of the International Classification of Functioning and Disability: ICIDH II

WHO 1998.
ImpairmentThe loss or abnormality of a body structure or of a physiological or psychological function
ActivityThe nature and extent of functioning at the level of the person. Activities may be limited in nature, duration, and quality
Contextual factors (participation)Include the features, aspects and attributes of objects, structures, human made organisations, service provision, and agencies in the physical, social, and attitudinal environment in which people live and conduct their lives. Contextual factors include both environmental factors and personal factors