Sima Barmania1, Syed Mohamed Aljunid2. 1. United Nations University-International Institute for Global Health, Bandar Tun Razak, 56000 Cheras, Kuala Lumpur, Malaysia; International Centre for Casemix and Clinical Cloding, Faculty of Medicine, Universiti Kebangsaan, Kuala Lumpur, Malaysia. Electronic address: simabarmania@hotmail.co.uk. 2. International Centre for Casemix and Clinical Cloding, Faculty of Medicine, Universiti Kebangsaan, Kuala Lumpur, Malaysia.