The healthcare environment is generally perceived as being
‘information rich’ yet ‘knowledge poor’.[6,13] There is a
wealth of data available within the healthcare systems.
However, there is a lack of effective analysis tools to discover
hidden relationships and trends in data. Knowledge discovery
and data mining have found numerous applications in business
and scientific domain. Valuable knowledge can be discovered
from application of data mining techniques in healthcare
system[6]. The characteristics of clinical data as it originates
during the process of clinical documentation, including issues
of data availability and complex representation models, can
make data mining applications challenging. Data preprocessing
and transformation are required before one can apply data
mining to clinical data. In today's Information Technology(IT)
driven society, knowledge is the most significant asset of any
organization. Knowledge discovery in databases is a welldefined
process consisting of several distinct steps. Data mining
is the core step, which results in discovery of hidden but useful
knowledge from massive databases