Abstract: Using the approaches of ontology, informatics and knowledge management, this paper explored and established ICF based ontology, concepts and terminology, classification, coding system and related knowledge management. The applications of ICF based information standard had been discussed in the areas of disability and rehabilitation assessment, clinical and rehabilitation information, Functional Diagnosis Related Groups (fDRGs) and disability survey statistics and policy development.

Key words: International Classification of Functioning, Disability and Health, disability and rehabilitation information standard, ontology, knowledge management